[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

Fixes problems similar to the following ones:

cmd_date.c: In function ?do_date?:
cmd_date.c:50:6: warning: variable ?old_bus? set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/usb.c         |    4 ++--
 common/usb_storage.c |    2 +-
 include/common.h     |    4 ++--
 include/i2c.h        |    5 ++++-
 4 files changed, 9 insertions(+), 6 deletions(-)

V2: Squash warning in usb_storage.c

diff --git a/common/usb.c b/common/usb.c
index a401c09..a5f9e9f 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -63,7 +63,7 @@
 #ifdef	USB_DEBUG
 #define	USB_PRINTF(fmt, args...)	printf(fmt , ##args)
 #else
-#define USB_PRINTF(fmt, args...)
+static inline void USB_PRINTF(const char *fmt, ...) {}
 #endif
 
 #define USB_BUFSIZ	512
@@ -970,7 +970,7 @@ void usb_scan_devices(void)
 #ifdef	USB_HUB_DEBUG
 #define	USB_HUB_PRINTF(fmt, args...)	printf(fmt , ##args)
 #else
-#define USB_HUB_PRINTF(fmt, args...)
+static inline void USB_HUB_PRINTF(const char *fmt, ...) {}
 #endif
 
 
diff --git a/common/usb_storage.c b/common/usb_storage.c
index 16667f3..5c56918 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -63,7 +63,7 @@
 #ifdef	USB_STOR_DEBUG
 #define USB_STOR_PRINTF(fmt, args...)	printf(fmt , ##args)
 #else
-#define USB_STOR_PRINTF(fmt, args...)
+static inline void USB_STOR_PRINTF(const char *fmt, ...) {}
 #endif
 
 #include <scsi.h>
diff --git a/include/common.h b/include/common.h
index d244bd4..aeb2d84 100644
--- a/include/common.h
+++ b/include/common.h
@@ -120,8 +120,8 @@ typedef volatile unsigned char	vu_char;
 #define debug(fmt,args...)	printf (fmt ,##args)
 #define debugX(level,fmt,args...) if (DEBUG>=level) printf(fmt,##args);
 #else
-#define debug(fmt,args...)
-#define debugX(level,fmt,args...)
+static inline void debug(const char *fmt, ...) {}
+static inline void debugX(int level, const char *fmt, ...) {}
 #endif	/* DEBUG */
 
 #ifdef DEBUG
diff --git a/include/i2c.h b/include/i2c.h
index 8ceb4c8..323150d 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -55,7 +55,10 @@
 #else
 #define CONFIG_SYS_MAX_I2C_BUS		1
 #define I2C_GET_BUS()		0
-#define I2C_SET_BUS(a)
+static inline int I2C_SET_BUS(unsigned int bus)
+{
+	return 0;
+}
 #endif
 
 /* define the I2C bus number for RTC and DTT if not already done */
-- 
1.7.5.4

[U-Boot] [PATCH 2/7 RESEND] GCC4.6: Remove unused "port" variable in cmd_usb.c

[Marek Vasut]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Remy Bohmer <linux@bohmer.net>
---
 common/cmd_usb.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index cd4d417..8c87265 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -281,7 +281,7 @@ static inline char *portspeed(int speed)
 void usb_show_tree_graph(struct usb_device *dev, char *pre)
 {
 	int i, index;
-	int has_child, last_child, port;
+	int has_child, last_child;
 
 	index = strlen(pre);
 	printf(" %s", pre);
@@ -300,7 +300,6 @@ void usb_show_tree_graph(struct usb_device *dev, char *pre)
 				/* found our pointer, see if we have a
 				 * little sister
 				 */
-				port = i;
 				while (i++ < dev->parent->maxchild) {
 					if (dev->parent->children[i] != NULL) {
 						/* found a sister */
-- 
1.7.5.4

[U-Boot] [PATCH 3/7] GCC4.6: Squash warning in cmd_flash.c

[Marek Vasut]

cmd_flash.c: In function ?do_protect?:
cmd_flash.c:474:6: warning: variable ?p? set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/cmd_flash.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/common/cmd_flash.c b/common/cmd_flash.c
index 5508d73..6765347 100644
--- a/common/cmd_flash.c
+++ b/common/cmd_flash.c
@@ -455,6 +455,7 @@ int flash_sect_erase (ulong addr_first, ulong addr_last)
 
 int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
+	int rcode = 0;
 #ifndef CONFIG_SYS_NO_FLASH
 	flash_info_t *info;
 	ulong bank;
@@ -465,24 +466,25 @@ int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	u8 dev_type, dev_num, pnum;
 #endif
 #endif /* CONFIG_SYS_NO_FLASH */
-#if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH)
-	ulong addr_first, addr_last;
-#endif
 #ifdef CONFIG_HAS_DATAFLASH
 	int status;
 #endif
+#if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH)
 	int p;
-	int rcode = 0;
+	ulong addr_first, addr_last;
+#endif
 
 	if (argc < 3)
 		return cmd_usage(cmdtp);
 
+#if !defined(CONFIG_SYS_NO_FLASH) || defined(CONFIG_HAS_DATAFLASH)
 	if (strcmp(argv[1], "off") == 0)
 		p = 0;
 	else if (strcmp(argv[1], "on") == 0)
 		p = 1;
 	else
 		return cmd_usage(cmdtp);
+#endif
 
 #ifdef CONFIG_HAS_DATAFLASH
 	if ((strcmp(argv[2], "all") != 0) && (strcmp(argv[2], "bank") != 0)) {
-- 
1.7.5.4

[U-Boot] [PATCH 4/7] GCC4.6: Squash warning in cmd_nvedit.c

[Marek Vasut]

cmd_nvedit.c: In function ?do_env_edit?:
cmd_nvedit.c:463:6: warning: variable ?len? set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/cmd_nvedit.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index e8b116d..101bc49 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -460,7 +460,6 @@ int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char buffer[CONFIG_SYS_CBSIZE];
 	char *init_val;
-	int len;
 
 	if (argc < 2)
 		return cmd_usage(cmdtp);
@@ -468,7 +467,7 @@ int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	/* Set read buffer to initial value or empty sting */
 	init_val = getenv(argv[1]);
 	if (init_val)
-		len = sprintf(buffer, "%s", init_val);
+		sprintf(buffer, "%s", init_val);
 	else
 		buffer[0] = '\0';
 
-- 
1.7.5.4

[U-Boot] [PATCH 5/7] GCC4.6: Squash warnings in lcd.c

[Marek Vasut]

lcd.c: In function ?lcd_drawchars?:
lcd.c:214:9: warning: variable ?off? set but not used
[-Wunused-but-set-variable]
lcd.c: In function ?lcd_display_bitmap?:
lcd.c:617:16: warning: variable ?compression? set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/lcd.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/common/lcd.c b/common/lcd.c
index 0555ab4..d9cb8ca 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -211,10 +211,13 @@ void lcd_printf(const char *fmt, ...)
 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 {
 	uchar *dest;
-	ushort off, row;
+	ushort row;
+
+#if LCD_BPP == LCD_MONOCHROME
+	ushort off  = x * (1 << LCD_BPP) % 8;
+#endif
 
 	dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
-	off  = x * (1 << LCD_BPP) % 8;
 
 	for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 		uchar *s = str;
@@ -614,7 +617,6 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
 	unsigned long width, height, byte_width;
 	unsigned long pwidth = panel_info.vl_col;
 	unsigned colors, bpix, bmp_bpix;
-	unsigned long compression;
 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 	struct pxafb_info *fbi = &panel_info.pxa;
 #elif defined(CONFIG_MPC823)
@@ -632,7 +634,6 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
 	height = le32_to_cpu (bmp->header.height);
 	bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 	colors = 1 << bmp_bpix;
-	compression = le32_to_cpu (bmp->header.compression);
 
 	bpix = NBITS(panel_info.vl_bpix);
 
-- 
1.7.5.4

[U-Boot] [PATCH 6/7] GCC4.6: Squash warnings in ipu_disp.c

[Marek Vasut]

ipu_disp.c: In function ?ipu_disp_set_global_alpha?:
ipu_disp.c:1237:11: warning: variable ?flow? set but not used
[-Wunused-but-set-variable]
ipu_disp.c: In function ?ipu_disp_set_color_key?:
ipu_disp.c:1302:16: warning: variable ?flow? set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
---
 drivers/video/ipu_disp.c |   87 ++++++++++++++++++++-------------------------
 drivers/video/ipu_regs.h |   18 +++++-----
 2 files changed, 48 insertions(+), 57 deletions(-)

diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c
index 11cf98d..fa8fb2c 100644
--- a/drivers/video/ipu_disp.c
+++ b/drivers/video/ipu_disp.c
@@ -399,29 +399,29 @@ void ipu_dp_csc_setup(int dp, struct dp_csc_param_t dp_csc_param,
 	const int (*coeff)[5][3];
 
 	if (dp_csc_param.mode >= 0) {
-		reg = __raw_readl(DP_COM_CONF(dp));
+		reg = __raw_readl(DP_COM_CONF());
 		reg &= ~DP_COM_CONF_CSC_DEF_MASK;
 		reg |= dp_csc_param.mode;
-		__raw_writel(reg, DP_COM_CONF(dp));
+		__raw_writel(reg, DP_COM_CONF());
 	}
 
 	coeff = dp_csc_param.coeff;
 
 	if (coeff) {
 		__raw_writel(mask_a((*coeff)[0][0]) |
-				(mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0(dp));
+				(mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0());
 		__raw_writel(mask_a((*coeff)[0][2]) |
-				(mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1(dp));
+				(mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1());
 		__raw_writel(mask_a((*coeff)[1][1]) |
-				(mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2(dp));
+				(mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2());
 		__raw_writel(mask_a((*coeff)[2][0]) |
-				(mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3(dp));
+				(mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3());
 		__raw_writel(mask_a((*coeff)[2][2]) |
 				(mask_b((*coeff)[3][0]) << 16) |
-				((*coeff)[4][0] << 30), DP_CSC_0(dp));
+				((*coeff)[4][0] << 30), DP_CSC_0());
 		__raw_writel(mask_b((*coeff)[3][1]) | ((*coeff)[4][1] << 14) |
 				(mask_b((*coeff)[3][2]) << 16) |
-				((*coeff)[4][2] << 30), DP_CSC_1(dp));
+				((*coeff)[4][2] << 30), DP_CSC_1());
 	}
 
 	if (srm_mode_update) {
@@ -481,7 +481,7 @@ int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
 	}
 
 	/* Transform color key from rgb to yuv if CSC is enabled */
-	reg = __raw_readl(DP_COM_CONF(dp));
+	reg = __raw_readl(DP_COM_CONF());
 	if (color_key_4rgb && (reg & DP_COM_CONF_GWCKE) &&
 		(((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
 		((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
@@ -489,7 +489,7 @@ int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
 		((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB)))) {
 		int red, green, blue;
 		int y, u, v;
-		uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL(dp)) &
+		uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL()) &
 			0xFFFFFFL;
 
 		debug("_ipu_dp_init color key 0x%x need change to yuv fmt!\n",
@@ -504,8 +504,8 @@ int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
 		v = rgb_to_yuv(2, red, green, blue);
 		color_key = (y << 16) | (u << 8) | v;
 
-		reg = __raw_readl(DP_GRAPH_WIND_CTRL(dp)) & 0xFF000000L;
-		__raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL(dp));
+		reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
+		__raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
 		color_key_4rgb = 0;
 
 		debug("_ipu_dp_init color key change to yuv fmt 0x%x!\n",
@@ -648,8 +648,8 @@ void ipu_dp_dc_enable(ipu_channel_t channel)
 
 	if (channel == MEM_FG_SYNC) {
 		/* Enable FG channel */
-		reg = __raw_readl(DP_COM_CONF(DP_SYNC));
-		__raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF(DP_SYNC));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF());
 
 		reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
 		__raw_writel(reg, IPU_SRM_PRI2);
@@ -692,13 +692,13 @@ void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
 		/* Disable FG channel */
 		dc_chan = 5;
 
-		reg = __raw_readl(DP_COM_CONF(DP_SYNC));
+		reg = __raw_readl(DP_COM_CONF());
 		csc = reg & DP_COM_CONF_CSC_DEF_MASK;
 		if (csc == DP_COM_CONF_CSC_DEF_FG)
 			reg &= ~DP_COM_CONF_CSC_DEF_MASK;
 
 		reg &= ~DP_COM_CONF_FG_EN;
-		__raw_writel(reg, DP_COM_CONF(DP_SYNC));
+		__raw_writel(reg, DP_COM_CONF());
 
 		reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
 		__raw_writel(reg, IPU_SRM_PRI2);
@@ -1234,17 +1234,12 @@ int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
 				  uint8_t alpha)
 {
 	uint32_t reg;
-	uint32_t flow;
 
 	unsigned char bg_chan;
 
-	if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC)
-		flow = DP_SYNC;
-	else if (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0)
-		flow = DP_ASYNC0;
-	else if (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)
-		flow = DP_ASYNC1;
-	else
+	if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
+		(channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
+		(channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
 		return -EINVAL;
 
 	if (channel == MEM_BG_SYNC || channel == MEM_BG_ASYNC0 ||
@@ -1257,23 +1252,23 @@ int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
 		clk_enable(g_ipu_clk);
 
 	if (bg_chan) {
-		reg = __raw_readl(DP_COM_CONF(flow));
-		__raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF(flow));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF());
 	} else {
-		reg = __raw_readl(DP_COM_CONF(flow));
-		__raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF(flow));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF());
 	}
 
 	if (enable) {
-		reg = __raw_readl(DP_GRAPH_WIND_CTRL(flow)) & 0x00FFFFFFL;
+		reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0x00FFFFFFL;
 		__raw_writel(reg | ((uint32_t) alpha << 24),
-			     DP_GRAPH_WIND_CTRL(flow));
+			     DP_GRAPH_WIND_CTRL());
 
-		reg = __raw_readl(DP_COM_CONF(flow));
-		__raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF(flow));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF());
 	} else {
-		reg = __raw_readl(DP_COM_CONF(flow));
-		__raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF(flow));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF());
 	}
 
 	reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
@@ -1299,17 +1294,13 @@ int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
 int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
 			       uint32_t color_key)
 {
-	uint32_t reg, flow;
+	uint32_t reg;
 	int y, u, v;
 	int red, green, blue;
 
-	if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC)
-		flow = DP_SYNC;
-	else if (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0)
-		flow = DP_ASYNC0;
-	else if (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)
-		flow = DP_ASYNC1;
-	else
+	if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
+		(channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
+		(channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
 		return -EINVAL;
 
 	if (!g_ipu_clk_enabled)
@@ -1339,14 +1330,14 @@ int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
 	}
 
 	if (enable) {
-		reg = __raw_readl(DP_GRAPH_WIND_CTRL(flow)) & 0xFF000000L;
-		__raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL(flow));
+		reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
+		__raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
 
-		reg = __raw_readl(DP_COM_CONF(flow));
-		__raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF(flow));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF());
 	} else {
-		reg = __raw_readl(DP_COM_CONF(flow));
-		__raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF(flow));
+		reg = __raw_readl(DP_COM_CONF());
+		__raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF());
 	}
 
 	reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
diff --git a/drivers/video/ipu_regs.h b/drivers/video/ipu_regs.h
index 36f07bb..9964c20 100644
--- a/drivers/video/ipu_regs.h
+++ b/drivers/video/ipu_regs.h
@@ -402,15 +402,15 @@ static inline struct ipu_dc_ch *dc_ch_offset(int ch)
 
 #define DP_REG			((struct ipu_dp *)(IPU_CTRL_BASE_ADDR + \
 				IPU_DP_REG_BASE))
-#define DP_COM_CONF(flow)	(&DP_REG->com_conf_sync)
-#define DP_GRAPH_WIND_CTRL(flow) (&DP_REG->graph_wind_ctrl_sync)
-#define DP_CSC_A_0(flow)	(&DP_REG->csca_sync[0])
-#define DP_CSC_A_1(flow)	(&DP_REG->csca_sync[1])
-#define DP_CSC_A_2(flow)	(&DP_REG->csca_sync[2])
-#define DP_CSC_A_3(flow)	(&DP_REG->csca_sync[3])
-
-#define DP_CSC_0(flow)		(&DP_REG->csc_sync[0])
-#define DP_CSC_1(flow)		(&DP_REG->csc_sync[1])
+#define DP_COM_CONF()		(&DP_REG->com_conf_sync)
+#define DP_GRAPH_WIND_CTRL()	(&DP_REG->graph_wind_ctrl_sync)
+#define DP_CSC_A_0()		(&DP_REG->csca_sync[0])
+#define DP_CSC_A_1()		(&DP_REG->csca_sync[1])
+#define DP_CSC_A_2()		(&DP_REG->csca_sync[2])
+#define DP_CSC_A_3()		(&DP_REG->csca_sync[3])
+
+#define DP_CSC_0()		(&DP_REG->csc_sync[0])
+#define DP_CSC_1()		(&DP_REG->csc_sync[1])
 
 /* DC template opcodes */
 #define WROD(lf)		(0x18 | (lf << 1))
-- 
1.7.5.4

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

cmd_mem.c: In function ?do_mem_loop?:
cmd_mem.c:474:25: warning: variable ?junk? set but not used
[-Wunused-but-set-variable]

The assigned variable can be removed because the pointers are volatile so
accesses to their addresses are always generated.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/cmd_mem.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 4daa1b3..e84cc4e 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	ulong	addr, length, i, junk;
+	ulong	addr, length, i;
 	int	size;
 	volatile uint	*longp;
 	volatile ushort *shortp;
@@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			longp = (uint *)addr;
 			i = length;
 			while (i-- > 0)
-				junk = *longp++;
+				*longp++;
 		}
 	}
 	if (size == 2) {
@@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			shortp = (ushort *)addr;
 			i = length;
 			while (i-- > 0)
-				junk = *shortp++;
+				*shortp++;
 		}
 	}
 	for (;;) {
 		cp = (u_char *)addr;
 		i = length;
 		while (i-- > 0)
-			junk = *cp++;
+			*cp++;
 	}
 }
 
-- 
1.7.5.4

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Fabio Estevam]

On Sun, Sep 25, 2011 at 9:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> Fixes problems similar to the following ones:
>
> cmd_date.c: In function ?do_date?:
> cmd_date.c:50:6: warning: variable ?old_bus? set but not used
> [-Wunused-but-set-variable]


Your commit log does not match your patch.

[U-Boot] [PATCH 4/7] GCC4.6: Squash warning in cmd_nvedit.c

[Mike Frysinger]

Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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[U-Boot] [PATCH 2/7 RESEND] GCC4.6: Remove unused "port" variable in cmd_usb.c

[Mike Frysinger]

Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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[U-Boot] [PATCH 4/7] GCC4.6: Squash warning in cmd_nvedit.c

[Mike Frysinger]

Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Mike Frysinger]

On Sunday, September 25, 2011 20:26:06 Marek Vasut wrote:
> cmd_mem.c: In function ?do_mem_loop?:
> cmd_mem.c:474:25: warning: variable ?junk? set but not used
> [-Wunused-but-set-variable]
> 
> The assigned variable can be removed because the pointers are volatile so
> accesses to their addresses are always generated.

i think the stores to a var were added to avoid a gcc warning, but if newer 
versions don't warn anymore, should be fine.

Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Mike Frysinger]

Acked-by: Mike Frysinger <vapier@gentoo.org>
-mike
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[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Wolfgang Denk]

Dear Mike Frysinger,

In message <201109252341.30328.vapier@gentoo.org> you wrote:
> 
> > The assigned variable can be removed because the pointers are volatile so
> > accesses to their addresses are always generated.
>
> i think the stores to a var were added to avoid a gcc warning, but if newer 
> versions don't warn anymore, should be fine.

Obviously we have to check if older tools still accept this.


Marek, which tool chains did you use for testing?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
How many seconds are there in a year? If I tell you there are 3.155 x
10^7, you won't even try to remember it. On the other hand, who could
forget that, to within half a percent, pi seconds is  a  nanocentury.
                                               -- Tom Duff, Bell Labs

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

On Monday, September 26, 2011 09:25:36 AM Wolfgang Denk wrote:
> Dear Mike Frysinger,
> 
> In message <201109252341.30328.vapier@gentoo.org> you wrote:
> > > The assigned variable can be removed because the pointers are volatile
> > > so accesses to their addresses are always generated.
> > 
> > i think the stores to a var were added to avoid a gcc warning, but if
> > newer versions don't warn anymore, should be fine.
> 
> Obviously we have to check if older tools still accept this.
> 

Hi,

as I was never completely sure about this file from the begining, I'm all for 
it.

Btw. who's supposed to merge the rest of the series anyway ?

> 
> Marek, which tool chains did you use for testing?

Hand-built gcc4.6.0+debian patches and gcc4.4.6+debian patches:

arm-linux-gnueabi-gcc-4.4 (Debian 4.4.6-7) 4.4.6
arm-linux-gnueabi-gcc-4.6 (Debian 4.6.0-14) 4.6.1 20110616 (prerelease)

There was someone on the irc who (unsuccessfully) tried to compile uboot with 
gcc 2.xx recently. Maybe we should impose some lower bound for compiler version, 
though I guess 4.4 is too high. Suggestions ?

Cheers
> 
> Best regards,
> 
> Wolfgang Denk

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Monday, September 26, 2011 04:39:42 AM Fabio Estevam wrote:
> On Sun, Sep 25, 2011 at 9:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> > Fixes problems similar to the following ones:
> > 
> > cmd_date.c: In function ?do_date?:
> > cmd_date.c:50:6: warning: variable ?old_bus? set but not used
> > [-Wunused-but-set-variable]
> 
> Your commit log does not match your patch.

"Fixes problems similar to the following ones" ... why not ?

Cheers

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Wolfgang Denk]

Dear Marek Vasut,

In message <201109261104.13082.marek.vasut@gmail.com> you wrote:
>
> > Your commit log does not match your patch.
> 
> "Fixes problems similar to the following ones" ... why not ?

Please show _exactly_ which problems the patch fixes.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Always borrow money from a pessimist; they don't expect  to  be  paid
back.

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Mike Frysinger]

On Monday, September 26, 2011 05:03:46 Marek Vasut wrote:
> On Monday, September 26, 2011 09:25:36 AM Wolfgang Denk wrote:
> > Mike Frysinger wrote:
> > > > The assigned variable can be removed because the pointers are
> > > > volatile so accesses to their addresses are always generated.
> > > 
> > > i think the stores to a var were added to avoid a gcc warning, but if
> > > newer versions don't warn anymore, should be fine.
> > 
> > Obviously we have to check if older tools still accept this.
> 
> Hi,
> 
> as I was never completely sure about this file from the begining, I'm all
> for it.
> 
> Btw. who's supposed to merge the rest of the series anyway ?
> 
> > Marek, which tool chains did you use for testing?
> 
> Hand-built gcc4.6.0+debian patches and gcc4.4.6+debian patches:
> 
> arm-linux-gnueabi-gcc-4.4 (Debian 4.4.6-7) 4.4.6
> arm-linux-gnueabi-gcc-4.6 (Debian 4.6.0-14) 4.6.1 20110616 (prerelease)
> 
> There was someone on the irc who (unsuccessfully) tried to compile uboot
> with gcc 2.xx recently. Maybe we should impose some lower bound for
> compiler version, though I guess 4.4 is too high. Suggestions ?

i think gcc-3.x has been broken for a while but no one has noticed
-mike
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[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

On Monday, September 26, 2011 06:10:37 PM Mike Frysinger wrote:
> On Monday, September 26, 2011 05:03:46 Marek Vasut wrote:
> > On Monday, September 26, 2011 09:25:36 AM Wolfgang Denk wrote:
> > > Mike Frysinger wrote:
> > > > > The assigned variable can be removed because the pointers are
> > > > > volatile so accesses to their addresses are always generated.
> > > > 
> > > > i think the stores to a var were added to avoid a gcc warning, but if
> > > > newer versions don't warn anymore, should be fine.
> > > 
> > > Obviously we have to check if older tools still accept this.
> > 
> > Hi,
> > 
> > as I was never completely sure about this file from the begining, I'm all
> > for it.
> > 
> > Btw. who's supposed to merge the rest of the series anyway ?
> > 
> > > Marek, which tool chains did you use for testing?
> > 
> > Hand-built gcc4.6.0+debian patches and gcc4.4.6+debian patches:
> > 
> > arm-linux-gnueabi-gcc-4.4 (Debian 4.4.6-7) 4.4.6
> > arm-linux-gnueabi-gcc-4.6 (Debian 4.6.0-14) 4.6.1 20110616 (prerelease)
> > 
> > There was someone on the irc who (unsuccessfully) tried to compile uboot
> > with gcc 2.xx recently. Maybe we should impose some lower bound for
> > compiler version, though I guess 4.4 is too high. Suggestions ?
> 
> i think gcc-3.x has been broken for a while but no one has noticed

I guess we should go the kernel way -- make it 4.2 and be done with it.

> -mike

[U-Boot] [PATCH 1/7 V3] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

Fix the following gcc4.6 problems:

cmd_date.c: In function ?do_date?:
cmd_date.c:50:6: warning: variable ?old_bus? set but not used
[-Wunused-but-set-variable]
asix.c: In function ?asix_init?:
asix.c:317:6: warning: variable ?rx_ctl? set but not used
[-Wunused-but-set-variable]
usb.c: In function ?usb_parse_config?:
usb.c:331:17: warning: variable ?ch? set but not used
[-Wunused-but-set-variable]
usb.c: In function ?usb_hub_port_connect_change?:
usb.c:1123:29: warning: variable ?portchange? set but not used
[-Wunused-but-set-variable]
usb.c: In function ?usb_hub_configure?:
usb.c:1183:25: warning: variable ?hubsts? set but not used
[-Wunused-but-set-variable]
usb_storage.c: In function ?usb_stor_CB_reset?:
usb_storage.c:466:6: warning: variable ?result? set but not used
[-Wunused-but-set-variable]

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/usb.c         |    4 ++--
 common/usb_storage.c |    2 +-
 include/common.h     |    4 ++--
 include/i2c.h        |    5 ++++-
 4 files changed, 9 insertions(+), 6 deletions(-)

V2: Squash warning in usb_storage.c
V3: update diff description

diff --git a/common/usb.c b/common/usb.c
index a401c09..a5f9e9f 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -63,7 +63,7 @@
 #ifdef	USB_DEBUG
 #define	USB_PRINTF(fmt, args...)	printf(fmt , ##args)
 #else
-#define USB_PRINTF(fmt, args...)
+static inline void USB_PRINTF(const char *fmt, ...) {}
 #endif
 
 #define USB_BUFSIZ	512
@@ -970,7 +970,7 @@ void usb_scan_devices(void)
 #ifdef	USB_HUB_DEBUG
 #define	USB_HUB_PRINTF(fmt, args...)	printf(fmt , ##args)
 #else
-#define USB_HUB_PRINTF(fmt, args...)
+static inline void USB_HUB_PRINTF(const char *fmt, ...) {}
 #endif
 
 
diff --git a/common/usb_storage.c b/common/usb_storage.c
index 16667f3..5c56918 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -63,7 +63,7 @@
 #ifdef	USB_STOR_DEBUG
 #define USB_STOR_PRINTF(fmt, args...)	printf(fmt , ##args)
 #else
-#define USB_STOR_PRINTF(fmt, args...)
+static inline void USB_STOR_PRINTF(const char *fmt, ...) {}
 #endif
 
 #include <scsi.h>
diff --git a/include/common.h b/include/common.h
index d244bd4..aeb2d84 100644
--- a/include/common.h
+++ b/include/common.h
@@ -120,8 +120,8 @@ typedef volatile unsigned char	vu_char;
 #define debug(fmt,args...)	printf (fmt ,##args)
 #define debugX(level,fmt,args...) if (DEBUG>=level) printf(fmt,##args);
 #else
-#define debug(fmt,args...)
-#define debugX(level,fmt,args...)
+static inline void debug(const char *fmt, ...) {}
+static inline void debugX(int level, const char *fmt, ...) {}
 #endif	/* DEBUG */
 
 #ifdef DEBUG
diff --git a/include/i2c.h b/include/i2c.h
index 8ceb4c8..323150d 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -55,7 +55,10 @@
 #else
 #define CONFIG_SYS_MAX_I2C_BUS		1
 #define I2C_GET_BUS()		0
-#define I2C_SET_BUS(a)
+static inline int I2C_SET_BUS(unsigned int bus)
+{
+	return 0;
+}
 #endif
 
 /* define the I2C bus number for RTC and DTT if not already done */
-- 
1.7.5.4

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <201109261931.24045.marek.vasut@gmail.com> you wrote:
>
> > i think gcc-3.x has been broken for a while but no one has noticed
> 
> I guess we should go the kernel way -- make it 4.2 and be done with it.

You are off by one major version.  The kernel README says:

	Make sure you have at least gcc 3.2 available.

Note that this will NOT build any half-way recent U-Boot version.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I'm a programmer: I don't buy software, I write it.
                                                  -- Tom Christiansen

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Simon Glass]

Hi Marek,

On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> cmd_mem.c: In function ?do_mem_loop?:
> cmd_mem.c:474:25: warning: variable ?junk? set but not used
> [-Wunused-but-set-variable]
>
> The assigned variable can be removed because the pointers are volatile so
> accesses to their addresses are always generated.
>
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
> ?common/cmd_mem.c | ? ?8 ++++----
> ?1 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/common/cmd_mem.c b/common/cmd_mem.c
> index 4daa1b3..e84cc4e 100644
> --- a/common/cmd_mem.c
> +++ b/common/cmd_mem.c
> @@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>
> ?int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> ?{
> - ? ? ? ulong ? addr, length, i, junk;
> + ? ? ? ulong ? addr, length, i;
> ? ? ? ?int ? ? size;
> ? ? ? ?volatile uint ? *longp;
> ? ? ? ?volatile ushort *shortp;
> @@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> ? ? ? ? ? ? ? ? ? ? ? ?longp = (uint *)addr;
> ? ? ? ? ? ? ? ? ? ? ? ?i = length;
> ? ? ? ? ? ? ? ? ? ? ? ?while (i-- > 0)
> - ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? junk = *longp++;
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? *longp++;
> ? ? ? ? ? ? ? ?}
> ? ? ? ?}
> ? ? ? ?if (size == 2) {
> @@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> ? ? ? ? ? ? ? ? ? ? ? ?shortp = (ushort *)addr;
> ? ? ? ? ? ? ? ? ? ? ? ?i = length;
> ? ? ? ? ? ? ? ? ? ? ? ?while (i-- > 0)
> - ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? junk = *shortp++;
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? *shortp++;
> ? ? ? ? ? ? ? ?}
> ? ? ? ?}
> ? ? ? ?for (;;) {
> ? ? ? ? ? ? ? ?cp = (u_char *)addr;
> ? ? ? ? ? ? ? ?i = length;
> ? ? ? ? ? ? ? ?while (i-- > 0)
> - ? ? ? ? ? ? ? ? ? ? ? junk = *cp++;
> + ? ? ? ? ? ? ? ? ? ? ? *cp++;
> ? ? ? ?}
> ?}

I checked the ARM assembler output and it looks fine.

Acked-by: Simon Glass <sjg@chromium.org>

Re the 'length == 1' case (above your patch) site, it is assigning to
'i' here. Could/should we remove that assignment also?

Regards,
Simon

>
> --
> 1.7.5.4
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>

[U-Boot] [PATCH 4/7] GCC4.6: Squash warning in cmd_nvedit.c

[Simon Glass]

On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> cmd_nvedit.c: In function ?do_env_edit?:
> cmd_nvedit.c:463:6: warning: variable ?len? set but not used
> [-Wunused-but-set-variable]
>
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>

I need this also!

Acked-by: Simon Glass <sjg@chromium.org>

> ---
> ?common/cmd_nvedit.c | ? ?3 +--
> ?1 files changed, 1 insertions(+), 2 deletions(-)
>
> diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
> index e8b116d..101bc49 100644
> --- a/common/cmd_nvedit.c
> +++ b/common/cmd_nvedit.c
> @@ -460,7 +460,6 @@ int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> ?{
> ? ? ? ?char buffer[CONFIG_SYS_CBSIZE];
> ? ? ? ?char *init_val;
> - ? ? ? int len;
>
> ? ? ? ?if (argc < 2)
> ? ? ? ? ? ? ? ?return cmd_usage(cmdtp);
> @@ -468,7 +467,7 @@ int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> ? ? ? ?/* Set read buffer to initial value or empty sting */
> ? ? ? ?init_val = getenv(argv[1]);
> ? ? ? ?if (init_val)
> - ? ? ? ? ? ? ? len = sprintf(buffer, "%s", init_val);
> + ? ? ? ? ? ? ? sprintf(buffer, "%s", init_val);
> ? ? ? ?else
> ? ? ? ? ? ? ? ?buffer[0] = '\0';
>
> --
> 1.7.5.4
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

On Monday, September 26, 2011 08:05:43 PM Simon Glass wrote:
> Hi Marek,
> 
> On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> > cmd_mem.c: In function ?do_mem_loop?:
> > cmd_mem.c:474:25: warning: variable ?junk? set but not used
> > [-Wunused-but-set-variable]
> > 
> > The assigned variable can be removed because the pointers are volatile so
> > accesses to their addresses are always generated.
> > 
> > Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> > ---
> >  common/cmd_mem.c |    8 ++++----
> >  1 files changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/common/cmd_mem.c b/common/cmd_mem.c
> > index 4daa1b3..e84cc4e 100644
> > --- a/common/cmd_mem.c
> > +++ b/common/cmd_mem.c
> > @@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int
> > argc, char * const argv[])
> > 
> >  int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const
> > argv[]) {
> > -       ulong   addr, length, i, junk;
> > +       ulong   addr, length, i;
> >        int     size;
> >        volatile uint   *longp;
> >        volatile ushort *shortp;
> > @@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
> > argc, char * const argv[]) longp = (uint *)addr;
> >                        i = length;
> >                        while (i-- > 0)
> > -                               junk = *longp++;
> > +                               *longp++;
> >                }
> >        }
> >        if (size == 2) {
> > @@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
> > argc, char * const argv[]) shortp = (ushort *)addr;
> >                        i = length;
> >                        while (i-- > 0)
> > -                               junk = *shortp++;
> > +                               *shortp++;
> >                }
> >        }
> >        for (;;) {
> >                cp = (u_char *)addr;
> >                i = length;
> >                while (i-- > 0)
> > -                       junk = *cp++;
> > +                       *cp++;
> >        }
> >  }
> 
> I checked the ARM assembler output and it looks fine.
> 
> Acked-by: Simon Glass <sjg@chromium.org>
> 
> Re the 'length == 1' case (above your patch) site, it is assigning to
> 'i' here. Could/should we remove that assignment also?

The loop below depends on that ... ?

> 
> Regards,
> Simon
> 
> > --
> > 1.7.5.4
> > 
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Simon Glass]

Hi Merek,

On Mon, Sep 26, 2011 at 11:24 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
> On Monday, September 26, 2011 08:05:43 PM Simon Glass wrote:
>> Hi Marek,
>>
>> On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
>> > cmd_mem.c: In function ?do_mem_loop?:
>> > cmd_mem.c:474:25: warning: variable ?junk? set but not used
>> > [-Wunused-but-set-variable]
>> >
>> > The assigned variable can be removed because the pointers are volatile so
>> > accesses to their addresses are always generated.
>> >
>> > Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
>> > ---
>> > ?common/cmd_mem.c | ? ?8 ++++----
>> > ?1 files changed, 4 insertions(+), 4 deletions(-)
>> >
>> > diff --git a/common/cmd_mem.c b/common/cmd_mem.c
>> > index 4daa1b3..e84cc4e 100644
>> > --- a/common/cmd_mem.c
>> > +++ b/common/cmd_mem.c
>> > @@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int
>> > argc, char * const argv[])
>> >
>> > ?int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const
>> > argv[]) {
>> > - ? ? ? ulong ? addr, length, i, junk;
>> > + ? ? ? ulong ? addr, length, i;
>> > ? ? ? ?int ? ? size;
>> > ? ? ? ?volatile uint ? *longp;
>> > ? ? ? ?volatile ushort *shortp;
>> > @@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
>> > argc, char * const argv[]) longp = (uint *)addr;
>> > ? ? ? ? ? ? ? ? ? ? ? ?i = length;
>> > ? ? ? ? ? ? ? ? ? ? ? ?while (i-- > 0)
>> > - ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? junk = *longp++;
>> > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? *longp++;
>> > ? ? ? ? ? ? ? ?}
>> > ? ? ? ?}
>> > ? ? ? ?if (size == 2) {
>> > @@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
>> > argc, char * const argv[]) shortp = (ushort *)addr;
>> > ? ? ? ? ? ? ? ? ? ? ? ?i = length;
>> > ? ? ? ? ? ? ? ? ? ? ? ?while (i-- > 0)
>> > - ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? junk = *shortp++;
>> > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? *shortp++;
>> > ? ? ? ? ? ? ? ?}
>> > ? ? ? ?}
>> > ? ? ? ?for (;;) {
>> > ? ? ? ? ? ? ? ?cp = (u_char *)addr;
>> > ? ? ? ? ? ? ? ?i = length;
>> > ? ? ? ? ? ? ? ?while (i-- > 0)
>> > - ? ? ? ? ? ? ? ? ? ? ? junk = *cp++;
>> > + ? ? ? ? ? ? ? ? ? ? ? *cp++;
>> > ? ? ? ?}
>> > ?}
>>
>> I checked the ARM assembler output and it looks fine.
>>
>> Acked-by: Simon Glass <sjg@chromium.org>
>>
>> Re the 'length == 1' case (above your patch) site, it is assigning to
>> 'i' here. Could/should we remove that assignment also?
>
> The loop below depends on that ... ?

Which loop? It doesn't look like the value of i is used?

Regards,
Simon

>
>>
>> Regards,
>> Simon
>>
>> > --
>> > 1.7.5.4
>> >
>> > _______________________________________________
>> > U-Boot mailing list
>> > U-Boot at lists.denx.de
>> > http://lists.denx.de/mailman/listinfo/u-boot
>

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

On Monday, September 26, 2011 08:03:45 PM Wolfgang Denk wrote:
> Dear Marek Vasut,
> 
> In message <201109261931.24045.marek.vasut@gmail.com> you wrote:
> > > i think gcc-3.x has been broken for a while but no one has noticed
> > 
> > I guess we should go the kernel way -- make it 4.2 and be done with it.
> 
> You are off by one major version.  The kernel README says:
> 
> 	Make sure you have at least gcc 3.2 available.
> 
> Note that this will NOT build any half-way recent U-Boot version.

It might have been my imagination then ... but 4.2 sounded quite logical to me, 
sorry for confusion.

Anyway, is there still anyone using 3.x ? If there isn't any such users, we 
should simply discard it, add gcc version check and set the lower bound to some 
not-too-buggy version of gcc4.

Best regards,

Marek Vasut

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

On Monday, September 26, 2011 08:29:22 PM Simon Glass wrote:
> Hi Merek,
> 
> On Mon, Sep 26, 2011 at 11:24 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
> > On Monday, September 26, 2011 08:05:43 PM Simon Glass wrote:
> >> Hi Marek,
> >> 
> >> On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> >> > cmd_mem.c: In function ?do_mem_loop?:
> >> > cmd_mem.c:474:25: warning: variable ?junk? set but not used
> >> > [-Wunused-but-set-variable]
> >> > 
> >> > The assigned variable can be removed because the pointers are volatile
> >> > so accesses to their addresses are always generated.
> >> > 
> >> > Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> >> > ---
> >> >  common/cmd_mem.c |    8 ++++----
> >> >  1 files changed, 4 insertions(+), 4 deletions(-)
> >> > 
> >> > diff --git a/common/cmd_mem.c b/common/cmd_mem.c
> >> > index 4daa1b3..e84cc4e 100644
> >> > --- a/common/cmd_mem.c
> >> > +++ b/common/cmd_mem.c
> >> > @@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int
> >> > argc, char * const argv[])
> >> > 
> >> >  int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const
> >> > argv[]) {
> >> > -       ulong   addr, length, i, junk;
> >> > +       ulong   addr, length, i;
> >> >        int     size;
> >> >        volatile uint   *longp;
> >> >        volatile ushort *shortp;
> >> > @@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
> >> > argc, char * const argv[]) longp = (uint *)addr;
> >> >                        i = length;
> >> >                        while (i-- > 0)
> >> > -                               junk = *longp++;
> >> > +                               *longp++;
> >> >                }
> >> >        }
> >> >        if (size == 2) {
> >> > @@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
> >> > argc, char * const argv[]) shortp = (ushort *)addr;
> >> >                        i = length;
> >> >                        while (i-- > 0)
> >> > -                               junk = *shortp++;
> >> > +                               *shortp++;
> >> >                }
> >> >        }
> >> >        for (;;) {
> >> >                cp = (u_char *)addr;
> >> >                i = length;
> >> >                while (i-- > 0)
> >> > -                       junk = *cp++;
> >> > +                       *cp++;
> >> >        }
> >> >  }
> >> 
> >> I checked the ARM assembler output and it looks fine.
> >> 
> >> Acked-by: Simon Glass <sjg@chromium.org>
> >> 
> >> Re the 'length == 1' case (above your patch) site, it is assigning to
> >> 'i' here. Could/should we remove that assignment also?
> > 
> > The loop below depends on that ... ?
> 
> Which loop? It doesn't look like the value of i is used?

i = length;
while (i-- > 0)

This loop

> 
> Regards,
> Simon
> 
> >> Regards,
> >> Simon
> >> 
> >> > --
> >> > 1.7.5.4
> >> > 
> >> > _______________________________________________
> >> > U-Boot mailing list
> >> > U-Boot at lists.denx.de
> >> > http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <201109262029.24934.marek.vasut@gmail.com> you wrote:
>
> Anyway, is there still anyone using 3.x ? If there isn't any such users, we 
> should simply discard it, add gcc version check and set the lower bound to some 
> not-too-buggy version of gcc4.

To be honest: yes, there are users.  We recently had customers where
we had to dig out ELDK 2.1.0 (gcc 2.95) to build thir code.

But obviously these don't use any recent code either.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Save yourself!  Reboot in 5 seconds!

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Simon Glass]

Hi Marek,

On Mon, Sep 26, 2011 at 11:34 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
> On Monday, September 26, 2011 08:29:22 PM Simon Glass wrote:
>> Hi Merek,
>>
>> On Mon, Sep 26, 2011 at 11:24 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
>> > On Monday, September 26, 2011 08:05:43 PM Simon Glass wrote:
>> >> Hi Marek,
>> >>
>> >> On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
>> >> > cmd_mem.c: In function ?do_mem_loop?:
>> >> > cmd_mem.c:474:25: warning: variable ?junk? set but not used
>> >> > [-Wunused-but-set-variable]
>> >> >
>> >> > The assigned variable can be removed because the pointers are volatile
>> >> > so accesses to their addresses are always generated.
>> >> >
>> >> > Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
>> >> > ---
>> >> > ?common/cmd_mem.c | ? ?8 ++++----
>> >> > ?1 files changed, 4 insertions(+), 4 deletions(-)
>> >> >
>> >> > diff --git a/common/cmd_mem.c b/common/cmd_mem.c
>> >> > index 4daa1b3..e84cc4e 100644
>> >> > --- a/common/cmd_mem.c
>> >> > +++ b/common/cmd_mem.c
>> >> > @@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int
>> >> > argc, char * const argv[])
>> >> >
>> >> > ?int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const
>> >> > argv[]) {
>> >> > - ? ? ? ulong ? addr, length, i, junk;
>> >> > + ? ? ? ulong ? addr, length, i;
>> >> > ? ? ? ?int ? ? size;
>> >> > ? ? ? ?volatile uint ? *longp;
>> >> > ? ? ? ?volatile ushort *shortp;
>> >> > @@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
>> >> > argc, char * const argv[]) longp = (uint *)addr;
>> >> > ? ? ? ? ? ? ? ? ? ? ? ?i = length;
>> >> > ? ? ? ? ? ? ? ? ? ? ? ?while (i-- > 0)
>> >> > - ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? junk = *longp++;
>> >> > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? *longp++;
>> >> > ? ? ? ? ? ? ? ?}
>> >> > ? ? ? ?}
>> >> > ? ? ? ?if (size == 2) {
>> >> > @@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int
>> >> > argc, char * const argv[]) shortp = (ushort *)addr;
>> >> > ? ? ? ? ? ? ? ? ? ? ? ?i = length;
>> >> > ? ? ? ? ? ? ? ? ? ? ? ?while (i-- > 0)
>> >> > - ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? junk = *shortp++;
>> >> > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? *shortp++;
>> >> > ? ? ? ? ? ? ? ?}
>> >> > ? ? ? ?}
>> >> > ? ? ? ?for (;;) {
>> >> > ? ? ? ? ? ? ? ?cp = (u_char *)addr;
>> >> > ? ? ? ? ? ? ? ?i = length;
>> >> > ? ? ? ? ? ? ? ?while (i-- > 0)
>> >> > - ? ? ? ? ? ? ? ? ? ? ? junk = *cp++;
>> >> > + ? ? ? ? ? ? ? ? ? ? ? *cp++;
>> >> > ? ? ? ?}
>> >> > ?}
>> >>
>> >> I checked the ARM assembler output and it looks fine.
>> >>
>> >> Acked-by: Simon Glass <sjg@chromium.org>
>> >>
>> >> Re the 'length == 1' case (above your patch) site, it is assigning to
>> >> 'i' here. Could/should we remove that assignment also?
>> >
>> > The loop below depends on that ... ?
>>
>> Which loop? It doesn't look like the value of i is used?
>
> i = length;
> while (i-- > 0)
>
> This loop

The assignment to i I was referring to is here:

	if (length == 1) {
		if (size == 4) {
			longp = (uint *)addr;
			for (;;)
				i = *longp;
                              ^^^ this line

		}
		if (size == 2) {
			shortp = (ushort *)addr;
			for (;;)
				i = *shortp;
                              ^^^ this line

		}
		cp = (u_char *)addr;
		for (;;)
			i = *cp;
                              ^^^ this line

	}

I was wondering if we need to assign to i? The output code appears
unchanged with my compiler if the 'i =' is removed.

Regards,
Simon

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Marek Vasut]

On Monday, September 26, 2011 09:01:16 PM Simon Glass wrote:
> Hi Marek,
> 
> On Mon, Sep 26, 2011 at 11:34 AM, Marek Vasut <marek.vasut@gmail.com> wrote:
> > On Monday, September 26, 2011 08:29:22 PM Simon Glass wrote:
> >> Hi Merek,
> >> 
> >> On Mon, Sep 26, 2011 at 11:24 AM, Marek Vasut <marek.vasut@gmail.com> 
wrote:
> >> > On Monday, September 26, 2011 08:05:43 PM Simon Glass wrote:
> >> >> Hi Marek,
> >> >> 
> >> >> On Sun, Sep 25, 2011 at 5:26 PM, Marek Vasut <marek.vasut@gmail.com> 
wrote:
> >> >> > cmd_mem.c: In function ?do_mem_loop?:
> >> >> > cmd_mem.c:474:25: warning: variable ?junk? set but not used
> >> >> > [-Wunused-but-set-variable]
> >> >> > 
> >> >> > The assigned variable can be removed because the pointers are
> >> >> > volatile so accesses to their addresses are always generated.
> >> >> > 
> >> >> > Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> >> >> > ---
> >> >> >  common/cmd_mem.c |    8 ++++----
> >> >> >  1 files changed, 4 insertions(+), 4 deletions(-)
> >> >> > 
> >> >> > diff --git a/common/cmd_mem.c b/common/cmd_mem.c
> >> >> > index 4daa1b3..e84cc4e 100644
> >> >> > --- a/common/cmd_mem.c
> >> >> > +++ b/common/cmd_mem.c
> >> >> > @@ -471,7 +471,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag,
> >> >> > int argc, char * const argv[])
> >> >> > 
> >> >> >  int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char *
> >> >> > const argv[]) {
> >> >> > -       ulong   addr, length, i, junk;
> >> >> > +       ulong   addr, length, i;
> >> >> >        int     size;
> >> >> >        volatile uint   *longp;
> >> >> >        volatile ushort *shortp;
> >> >> > @@ -518,7 +518,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag,
> >> >> > int argc, char * const argv[]) longp = (uint *)addr;
> >> >> >                        i = length;
> >> >> >                        while (i-- > 0)
> >> >> > -                               junk = *longp++;
> >> >> > +                               *longp++;
> >> >> >                }
> >> >> >        }
> >> >> >        if (size == 2) {
> >> >> > @@ -526,14 +526,14 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag,
> >> >> > int argc, char * const argv[]) shortp = (ushort *)addr;
> >> >> >                        i = length;
> >> >> >                        while (i-- > 0)
> >> >> > -                               junk = *shortp++;
> >> >> > +                               *shortp++;
> >> >> >                }
> >> >> >        }
> >> >> >        for (;;) {
> >> >> >                cp = (u_char *)addr;
> >> >> >                i = length;
> >> >> >                while (i-- > 0)
> >> >> > -                       junk = *cp++;
> >> >> > +                       *cp++;
> >> >> >        }
> >> >> >  }
> >> >> 
> >> >> I checked the ARM assembler output and it looks fine.
> >> >> 
> >> >> Acked-by: Simon Glass <sjg@chromium.org>
> >> >> 
> >> >> Re the 'length == 1' case (above your patch) site, it is assigning to
> >> >> 'i' here. Could/should we remove that assignment also?
> >> > 
> >> > The loop below depends on that ... ?
> >> 
> >> Which loop? It doesn't look like the value of i is used?
> > 
> > i = length;
> > while (i-- > 0)
> > 
> > This loop
> 
> The assignment to i I was referring to is here:
> 
> 	if (length == 1) {
> 		if (size == 4) {
> 			longp = (uint *)addr;
> 			for (;;)
> 				i = *longp;
>                               ^^^ this line
> 
> 		}
> 		if (size == 2) {
> 			shortp = (ushort *)addr;
> 			for (;;)
> 				i = *shortp;
>                               ^^^ this line
> 
> 		}
> 		cp = (u_char *)addr;
> 		for (;;)
> 			i = *cp;
>                               ^^^ this line
> 
> 	}
> 
> I was wondering if we need to assign to i? The output code appears
> unchanged with my compiler if the 'i =' is removed.

Oh, right ... this can be removed. That code seems quite legacy and in a urgent 
need of cleanup. Shall we wrap this change into this patch or do a subsequent 
one ?

Cheers
> 
> Regards,
> Simon

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Simon Glass]

Hi Marek,

On Mon, Sep 26, 2011 at 12:10 PM, Marek Vasut <marek.vasut@gmail.com> wrote:
> On Monday, September 26, 2011 09:01:16 PM Simon Glass wrote:
>> Hi Marek,
>>
>>
>> The assignment to i I was referring to is here:
>>
>> ? ? ? if (length == 1) {
>> ? ? ? ? ? ? ? if (size == 4) {
>> ? ? ? ? ? ? ? ? ? ? ? longp = (uint *)addr;
>> ? ? ? ? ? ? ? ? ? ? ? for (;;)
>> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? i = *longp;
>> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^ this line
>>
>> ? ? ? ? ? ? ? }
>> ? ? ? ? ? ? ? if (size == 2) {
>> ? ? ? ? ? ? ? ? ? ? ? shortp = (ushort *)addr;
>> ? ? ? ? ? ? ? ? ? ? ? for (;;)
>> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? i = *shortp;
>> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^ this line
>>
>> ? ? ? ? ? ? ? }
>> ? ? ? ? ? ? ? cp = (u_char *)addr;
>> ? ? ? ? ? ? ? for (;;)
>> ? ? ? ? ? ? ? ? ? ? ? i = *cp;
>> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^ this line
>>
>> ? ? ? }
>>
>> I was wondering if we need to assign to i? The output code appears
>> unchanged with my compiler if the 'i =' is removed.
>
> Oh, right ... this can be removed. That code seems quite legacy and in a urgent
> need of cleanup. Shall we wrap this change into this patch or do a subsequent
> one ?

I'm sure you know better than me, but it feels like a separate commit
if only because your commit msg is about GCC 4.6 warnings.

Regards,
Simon

>
> Cheers

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Mike Frysinger]

On Monday, September 26, 2011 14:29:24 Marek Vasut wrote:
> On Monday, September 26, 2011 08:03:45 PM Wolfgang Denk wrote:
> > Marek Vasut wrote:
> > > > i think gcc-3.x has been broken for a while but no one has noticed
> > > 
> > > I guess we should go the kernel way -- make it 4.2 and be done with it.
> > 
> > You are off by one major version.  The kernel README says:
> > 	Make sure you have at least gcc 3.2 available.
> > 
> > Note that this will NOT build any half-way recent U-Boot version.
> 
> It might have been my imagination then ... but 4.2 sounded quite logical to
> me, sorry for confusion.
> 
> Anyway, is there still anyone using 3.x ? If there isn't any such users, we
> should simply discard it, add gcc version check and set the lower bound to
> some not-too-buggy version of gcc4.

we had someone post a fix for using gcc-3.x in current master
-mike
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[U-Boot] [PATCH 1/7 V3] GCC4.6: Convert various empty macros to inline functions

[Wolfgang Denk]

Dear Marek Vasut,

In message <1317058579-936-1-git-send-email-marek.vasut@gmail.com> you wrote:
> Fix the following gcc4.6 problems:
> 
> cmd_date.c: In function `do_date?:
> cmd_date.c:50:6: warning: variable `old_bus? set but not used
> [-Wunused-but-set-variable]
> asix.c: In function `asix_init?:
> asix.c:317:6: warning: variable `rx_ctl? set but not used
> [-Wunused-but-set-variable]
> usb.c: In function `usb_parse_config?:
> usb.c:331:17: warning: variable `ch? set but not used
> [-Wunused-but-set-variable]
> usb.c: In function `usb_hub_port_connect_change?:
> usb.c:1123:29: warning: variable `portchange? set but not used
> [-Wunused-but-set-variable]
> usb.c: In function `usb_hub_configure?:
> usb.c:1183:25: warning: variable `hubsts? set but not used
> [-Wunused-but-set-variable]
> usb_storage.c: In function `usb_stor_CB_reset?:
> usb_storage.c:466:6: warning: variable `result? set but not used
> [-Wunused-but-set-variable]
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
>  common/usb.c         |    4 ++--
>  common/usb_storage.c |    2 +-
>  include/common.h     |    4 ++--
>  include/i2c.h        |    5 ++++-
>  4 files changed, 9 insertions(+), 6 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Life would be so much easier if we could  just  look  at  the  source
code.                                                   -- Dave Olson

[U-Boot] [PATCH 3/7] GCC4.6: Squash warning in cmd_flash.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <1316996766-14248-3-git-send-email-marek.vasut@gmail.com> you wrote:
> cmd_flash.c: In function `do_protect?:
> cmd_flash.c:474:6: warning: variable `p? set but not used
> [-Wunused-but-set-variable]
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
>  common/cmd_flash.c |   10 ++++++----
>  1 files changed, 6 insertions(+), 4 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"It's when they say 2 + 2 = 5 that I begin to argue."    - Eric Pepke

[U-Boot] [PATCH 4/7] GCC4.6: Squash warning in cmd_nvedit.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <1316996766-14248-4-git-send-email-marek.vasut@gmail.com> you wrote:
> cmd_nvedit.c: In function `do_env_edit?:
> cmd_nvedit.c:463:6: warning: variable `len? set but not used
> [-Wunused-but-set-variable]
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
>  common/cmd_nvedit.c |    3 +--
>  1 files changed, 1 insertions(+), 2 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I don't care if you *ARE* on a bondage-and-discipline  post-technical
system  pawned off by the nation's largest oughta-be-illegal monopoly
who cannot escape the sins of their forefathers -- namely, using  the
wrong  slash for directories when the C language and its brethren use
it for something else that's very important.
         -- Tom Christiansen in <55oabg$1j1$1@csnews.cs.colorado.edu>

[U-Boot] [PATCH 5/7] GCC4.6: Squash warnings in lcd.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <1316996766-14248-5-git-send-email-marek.vasut@gmail.com> you wrote:
> lcd.c: In function `lcd_drawchars?:
> lcd.c:214:9: warning: variable `off? set but not used
> [-Wunused-but-set-variable]
> lcd.c: In function `lcd_display_bitmap?:
> lcd.c:617:16: warning: variable `compression? set but not used
> [-Wunused-but-set-variable]
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
>  common/lcd.c |    9 +++++----
>  1 files changed, 5 insertions(+), 4 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"If God had wanted us to use the metric system, Jesus would have  had
10 apostles."

[U-Boot] [PATCH 6/7] GCC4.6: Squash warnings in ipu_disp.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <1316996766-14248-6-git-send-email-marek.vasut@gmail.com> you wrote:
> ipu_disp.c: In function `ipu_disp_set_global_alpha?:
> ipu_disp.c:1237:11: warning: variable `flow? set but not used
> [-Wunused-but-set-variable]
> ipu_disp.c: In function `ipu_disp_set_color_key?:
> ipu_disp.c:1302:16: warning: variable `flow? set but not used
> [-Wunused-but-set-variable]
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> Cc: Stefano Babic <sbabic@denx.de>
> ---
>  drivers/video/ipu_disp.c |   87 ++++++++++++++++++++-------------------------
>  drivers/video/ipu_regs.h |   18 +++++-----
>  2 files changed, 48 insertions(+), 57 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Conquest is easy. Control is not.
	-- Kirk, "Mirror, Mirror", stardate unknown

[U-Boot] [PATCH 7/7] GCC4.6: Squash warning in cmd_mem.c

[Wolfgang Denk]

Dear Marek Vasut,

In message <1316996766-14248-7-git-send-email-marek.vasut@gmail.com> you wrote:
> cmd_mem.c: In function `do_mem_loop?:
> cmd_mem.c:474:25: warning: variable `junk? set but not used
> [-Wunused-but-set-variable]
> 
> The assigned variable can be removed because the pointers are volatile so
> accesses to their addresses are always generated.
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
>  common/cmd_mem.c |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"... freedom ... is a worship word..."
"It is our worship word too."
	-- Cloud William and Kirk, "The Omega Glory", stardate unknown

[U-Boot] [PATCH 1/7 V3] GCC4.6: Convert various empty macros to inline functions

[Wolfgang Denk]

Dear Marik,

In message <1317058579-936-1-git-send-email-marek.vasut@gmail.com> you wrote:
> Fix the following gcc4.6 problems:
>
> cmd_date.c: In function `do_date?:
> cmd_date.c:50:6: warning: variable `old_bus? set but not used
> [-Wunused-but-set-variable]
> asix.c: In function `asix_init?:
> asix.c:317:6: warning: variable `rx_ctl? set but not used
> [-Wunused-but-set-variable]
> usb.c: In function `usb_parse_config?:
> usb.c:331:17: warning: variable `ch? set but not used
> [-Wunused-but-set-variable]
> usb.c: In function `usb_hub_port_connect_change?:
> usb.c:1123:29: warning: variable `portchange? set but not used
> [-Wunused-but-set-variable]
> usb.c: In function `usb_hub_configure?:
> usb.c:1183:25: warning: variable `hubsts? set but not used
> [-Wunused-but-set-variable]
> usb_storage.c: In function `usb_stor_CB_reset?:
> usb_storage.c:466:6: warning: variable `result? set but not used
> [-Wunused-but-set-variable]
>
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---
>  common/usb.c         |    4 ++--
>  common/usb_storage.c |    2 +-
>  include/common.h     |    4 ++--
>  include/i2c.h        |    5 ++++-
>  4 files changed, 9 insertions(+), 6 deletions(-)

Unforstunately this patch breaks a number of boards.

Did you by chance forget to run MAKEALL on it?  :-(

Example:

./MAKEALL TQM823L
Configuring for TQM823L board...
tqm8xx_pcmcia.c: In function 'pcmcia_voltage_set':
tqm8xx_pcmcia.c:265: error: 'pcmp' undeclared (first use in this function)
tqm8xx_pcmcia.c:265: error: (Each undeclared identifier is reported only once
tqm8xx_pcmcia.c:265: error: for each function it appears in.)
make[1]: *** [/work/wd/tmp-ppc/drivers/pcmcia/tqm8xx_pcmcia.o] Error 1
make: *** [/work/wd/tmp-ppc/drivers/pcmcia/libpcmcia.o] Error 2
make: *** Waiting for unfinished jobs....
ppc_6xx-size: '/work/wd/tmp-ppc/u-boot': No such file

...
60ce53cf9f408d9ad721f8e7a87d6a564e6d5bac is the first bad commit
commit 60ce53cf9f408d9ad721f8e7a87d6a564e6d5bac
Author: Marek Vasut <marek.vasut@gmail.com>
Date:   Mon Sep 26 19:36:19 2011 +0200

    GCC4.6: Convert various empty macros to inline functions


Please fix.

Thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The word "fit", as I understand it, means "appropriate to a purpose",
and I would say the body of the Dean is supremely appropriate to  the
purpose of sitting around all day and eating big heavy meals.
                                 - Terry Pratchett, _Moving Pictures_

[U-Boot] [PATCH 1/7 V3] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Sunday, October 02, 2011 08:36:04 PM Wolfgang Denk wrote:
> Dear Marek,
> 
[...]

> 
> Please fix.

Hi Wolfgang,

I have to admit I didn't test ppc boards. But by looking at the TQM pcmcia 
driver, the problem is in the driver itself. That's where I suspect it should be 
fixed.

Can you share the list of broken boards you detected please ?

Thanks!

Cheers

[U-Boot] [PATCH 1/7 V3] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Sunday, October 02, 2011 09:08:52 PM Marek Vasut wrote:
> On Sunday, October 02, 2011 08:36:04 PM Wolfgang Denk wrote:
> > Dear Marek,
> 
> [...]
> 
> > Please fix.
> 
> Hi Wolfgang,
> 
> I have to admit I didn't test ppc boards. But by looking at the TQM pcmcia
> driver, the problem is in the driver itself. That's where I suspect it
> should be fixed.
> 
> Can you share the list of broken boards you detected please ?

Hi,

I'm running the compile tests for powerpc arch right now and I noticed many 
problems of this form:

Configuring for PCIPPC2 board...
interrupts.c: In function 'interrupt_init_cpu':
interrupts.c:38: warning: implicit declaration of function 'GTREGREAD'
interrupts.c:38: error: 'LOW_INTERRUPT_CAUSE_REGISTER' undeclared (first use in 
this function)
interrupts.c:38: error: (Each undeclared identifier is reported only once
interrupts.c:38: error: for each function it appears in.)
interrupts.c:39: error: 'HIGH_INTERRUPT_CAUSE_REGISTER' undeclared (first use in 
this function)
interrupts.c:41: error: 'ETHERNET0_INTERRUPT_CAUSE_REGISTER' undeclared (first 
use in this function)
interrupts.c:42: error: 'ETHERNET1_INTERRUPT_CAUSE_REGISTER' undeclared (first 
use in this function)
interrupts.c:43: error: 'ETHERNET2_INTERRUPT_CAUSE_REGISTER' undeclared (first 
use in this function)
interrupts.c:45: error: 'ETHERNET0_INTERRUPT_MASK_REGISTER' undeclared (first 
use in this function)
interrupts.c:46: error: 'ETHERNET1_INTERRUPT_MASK_REGISTER' undeclared (first 
use in this function)
interrupts.c:47: error: 'ETHERNET2_INTERRUPT_MASK_REGISTER' undeclared (first 
use in this function)
make[1]: *** [interrupts.o] Error 1
make: *** [arch/powerpc/cpu/74xx_7xx/lib74xx_7xx.o] Error 2
make: *** Waiting for unfinished jobs....
powerpc-linux-size: './u-boot': No such file

This seems like noone actually tested compiling those boards with DEBUG enabled 
... ever. Anyway, there seems to be an easy fix, add the following into the 
config file:

#ifndef __ASSEMBLY__
#include <galileo/core.h>
#endif

There is a catch I don't quite understand though, that is, some boards include 
board/Marvell/include/mv_gen_reg.h instead. Which should be included in those 
config files? Is there some way to tell please?

=========================================

As for the tqm-pcmcia problem, removing the #ifdef DEBUG fixed the problem with 
no growth in the u-boot.bin size. Though u-boot (elf binary) grew a bit (tested 
with ELDK4.2, gcc 4.2.2):

With no gcc4.6 patches and unfixed:

Configuring for TQM823L board...
   text    data     bss     dec     hex filename
 260523   13960   25704  300187   4949b ./u-boot

--------------------- SUMMARY ----------------------------
Boards compiled: 1
----------------------------------------------------------
[u-boot]$ ls -la u-boot.bin 
-rwxrwxr-x 1 user user 274568 Oct  3 00:10 u-boot.bin


With gcc4.6 patches and removed #ifdef DEBUG:

Configuring for TQM823L board...
   text    data     bss     dec     hex filename
 260547   13960   25704  300211   494b3 ./u-boot

--------------------- SUMMARY ----------------------------
Boards compiled: 1
----------------------------------------------------------
[u-boot]$ ls -la u-boot.bin 
-rwxrwxr-x 1 user user 274568 Oct  3 00:11 u-boot.bin

Cheers

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Monday, September 26, 2011 02:26:00 AM Marek Vasut wrote:
> Fixes problems similar to the following ones:
> 
> cmd_date.c: In function ?do_date?:
> cmd_date.c:50:6: warning: variable ?old_bus? set but not used
> [-Wunused-but-set-variable]
> 
> Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
> ---

Wolfgang, can you please revert this patch ? It should get the PPCs building 
again, but I feel like it's more like hiding errors. As a temporary solution 
(until I come up with something better), this should work.

I'll give a final confirmation that this fixes the problem after I do build on 
all PPC and ARM boards, but TQM823L builds fine.

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Wolfgang Denk]

Dear Marek Vasut,

In message <201110032032.25013.marek.vasut@gmail.com> you wrote:
>
> Wolfgang, can you please revert this patch ? It should get the PPCs building 
> again, but I feel like it's more like hiding errors. As a temporary solution 
> (until I come up with something better), this should work.
>
> I'll give a final confirmation that this fixes the problem after I do build on 
> all PPC and ARM boards, but TQM823L builds fine.

OK, I'm waiting for your confirmation then.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
No one wants war.
	-- Kirk, "Errand of Mercy", stardate 3201.7

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Monday, October 03, 2011 08:36:58 PM Wolfgang Denk wrote:
> Dear Marek Vasut,
> 
> In message <201110032032.25013.marek.vasut@gmail.com> you wrote:
> > Wolfgang, can you please revert this patch ? It should get the PPCs
> > building again, but I feel like it's more like hiding errors. As a
> > temporary solution (until I come up with something better), this should
> > work.
> > 
> > I'll give a final confirmation that this fixes the problem after I do
> > build on all PPC and ARM boards, but TQM823L builds fine.
> 
> OK, I'm waiting for your confirmation then.

Building like never before :-( Good so far, I know I screwed very badly this 
time.

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Monday, October 03, 2011 08:42:59 PM Marek Vasut wrote:
> On Monday, October 03, 2011 08:36:58 PM Wolfgang Denk wrote:
> > Dear Marek Vasut,
> > 
> > In message <201110032032.25013.marek.vasut@gmail.com> you wrote:
> > > Wolfgang, can you please revert this patch ? It should get the PPCs
> > > building again, but I feel like it's more like hiding errors. As a
> > > temporary solution (until I come up with something better), this should
> > > work.
> > > 
> > > I'll give a final confirmation that this fixes the problem after I do
> > > build on all PPC and ARM boards, but TQM823L builds fine.
> > 
> > OK, I'm waiting for your confirmation then.
> 
> Building like never before :-( Good so far, I know I screwed very badly
> this time.

I was compiling like there was no tomorrow:

* BMW board builds with some warnings (unrelated)

* MPC8360ERDK, MPC8360ERDK_33, MPC8360ERDK_66, socrates, TQM8548_BE doesn't 
build (mtd related issues) 
Configuring for MPC8360ERDK board...
fsl_upm.c:151: error: static declaration of 'nand_read_buf' follows non-static 
declaration
/home/marex/u-boot/include/nand.h:139: error: previous declaration of 
'nand_read_buf' was here
make[1]: *** [fsl_upm.o] Error 1
make: *** [drivers/mtd/nand/libnand.o] Error 2
make: *** Waiting for unfinished jobs....
make: *** wait: No child processes.  Stop.
powerpc-linux-size: './u-boot': No such file

NOTE: This can be fixed by the patch Message-Id: <1317682569-4896-1-git-send-
email-marek.vasut@gmail.com> and Message-Id: <1317682569-4896-3-git-send-email-
marek.vasut@gmail.com>

* P1011RDB and variants:
cmd_sf.c: In function 'do_spi_flash':
cmd_sf.c:164: warning: 'skipped' may be used uninitialized in this function
cmd_sf.c:164: note: 'skipped' was declared here

NOTE: Patch Message-Id: <1317682569-4896-2-git-send-email-marek.vasut@gmail.com> 
should fix the problem.

* mpq101 board:
Configuring for mpq101 board...
powerpc-linux-ld: section .bootpg [fffff000 -> fffff22f] overlaps section .data 
[ffffe258 -> fffffe1b]
powerpc-linux-ld: u-boot: section .bootpg lma 0xfffff000 overlaps previous 
sections
powerpc-linux-ld: u-boot: section .u_boot_cmd lma 0xfffffe1c overlaps previous 
sections
powerpc-linux-ld: u-boot: section .resetvec lma 0xfffffffc overlaps previous 
sections
powerpc-linux-ld: u-boot: section .ppcenv lma 0xfffc0000 overlaps previous 
sections
make: *** [u-boot] Error 1
powerpc-linux-size: './u-boot': No such file

I'll re-run the tests with the reverted GCC4.6 debug() patch and the three 
patches I submitted (Referenced in this mail) and reply in the morning.

Cheers

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Monday, October 03, 2011 08:36:58 PM Wolfgang Denk wrote:
> Dear Marek Vasut,
> 
> In message <201110032032.25013.marek.vasut@gmail.com> you wrote:
> > Wolfgang, can you please revert this patch ? It should get the PPCs
> > building again, but I feel like it's more like hiding errors. As a
> > temporary solution (until I come up with something better), this should
> > work.
> > 
> > I'll give a final confirmation that this fixes the problem after I do
> > build on all PPC and ARM boards, but TQM823L builds fine.
> 
> OK, I'm waiting for your confirmation then.
> 

I can confirm revert of this patch does fix the build issues on PPC 
architecture. I'll continue the investigation as for how this can be fixed 
without growing the code.

Cheers

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Tuesday, October 04, 2011 02:18:23 PM Marek Vasut wrote:
> On Monday, October 03, 2011 08:36:58 PM Wolfgang Denk wrote:
> > Dear Marek Vasut,
> > 
> > In message <201110032032.25013.marek.vasut@gmail.com> you wrote:
> > > Wolfgang, can you please revert this patch ? It should get the PPCs
> > > building again, but I feel like it's more like hiding errors. As a
> > > temporary solution (until I come up with something better), this should
> > > work.
> > > 
> > > I'll give a final confirmation that this fixes the problem after I do
> > > build on all PPC and ARM boards, but TQM823L builds fine.
> > 
> > OK, I'm waiting for your confirmation then.
> 
> I can confirm revert of this patch does fix the build issues on PPC
> architecture. I'll continue the investigation as for how this can be fixed
> without growing the code.
> 
> Cheers

Please revert the "GCC4.6: Convert various empty macros to inline functions". 
Please consider this a final confirmation.

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Wolfgang Denk]

Dear Marek Vasut,

In message <201110042106.43968.marek.vasut@gmail.com> you wrote:
>
> Please revert the "GCC4.6: Convert various empty macros to inline functions". 
> Please consider this a final confirmation.

Thanks, reverted.



Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
War is never imperative.
	-- McCoy, "Balance of Terror", stardate 1709.2

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Mike Frysinger]

On Tuesday 04 October 2011 15:06:43 Marek Vasut wrote:
> On Tuesday, October 04, 2011 02:18:23 PM Marek Vasut wrote:
> > On Monday, October 03, 2011 08:36:58 PM Wolfgang Denk wrote:
> > > Marek Vasut wrote:
> > > > Wolfgang, can you please revert this patch ? It should get the PPCs
> > > > building again, but I feel like it's more like hiding errors. As a
> > > > temporary solution (until I come up with something better), this
> > > > should work.
> > > > 
> > > > I'll give a final confirmation that this fixes the problem after I do
> > > > build on all PPC and ARM boards, but TQM823L builds fine.
> > > 
> > > OK, I'm waiting for your confirmation then.
> > 
> > I can confirm revert of this patch does fix the build issues on PPC
> > architecture. I'll continue the investigation as for how this can be
> > fixed without growing the code.
> 
> Please revert the "GCC4.6: Convert various empty macros to inline
> functions". Please consider this a final confirmation.

to be clear, we will want this back eventually :)

it's finding legit bugs ... it noticed some DEBUG code of mine in the Blackfin 
SPI driver had rotted.
-mike
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[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Wolfgang Denk]

Dear Mike Frysinger,

In message <201110041546.41827.vapier@gentoo.org> you wrote:
>
> > Please revert the "GCC4.6: Convert various empty macros to inline
> > functions". Please consider this a final confirmation.
> 
> to be clear, we will want this back eventually :)

Agreed.

But in a form that 1) does not break building of boards and 2) does
not inclrease code size for boards that don't even have DEBUG
defined.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
While money can't buy happiness, it certainly lets  you  choose  your
own form of misery.

[U-Boot] [PATCH 1/7 V2] GCC4.6: Convert various empty macros to inline functions

[Marek Vasut]

On Tuesday, October 04, 2011 10:44:28 PM Wolfgang Denk wrote:
> Dear Mike Frysinger,
> 
> In message <201110041546.41827.vapier@gentoo.org> you wrote:
> > > Please revert the "GCC4.6: Convert various empty macros to inline
> > > functions". Please consider this a final confirmation.
> > 
> > to be clear, we will want this back eventually :)
> 
> Agreed.
> 
> But in a form that 1) does not break building of boards and 2) does
> not inclrease code size for boards that don't even have DEBUG
> defined.

Agreed, I'll keep digging into it. And it's true it found some bugs.

Cheers