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From: Changming <charley.ashbringer@gmail.com>
To: gregkh@linuxfoundation.org
Cc: linux-usb@vger.kernel.org, thomas@winischhofer.net,
	Changming Liu <liu.changm@northeastern.edu>
Subject: [PATCH 1/6] USB: sisusbvga: change char to u8 for sisusb_copy_memory
Date: Fri, 29 May 2020 21:48:15 -0400	[thread overview]
Message-ID: <20200530014820.9967-2-liu.changm@northeastern.edu> (raw)
In-Reply-To: <20200530014820.9967-1-liu.changm@northeastern.edu>

From: Changming Liu <liu.changm@northeastern.edu>

sisusb_copy_memory is called in several places.

sisusb_copy_memory calls sisusb_write_mem_bulk which 
is called by sisusb_write and sisusb_send_bulk_msg.

change the related parameters from char to u8 accordingly

Signed-off-by: Changming Liu <liu.changm@northeastern.edu>
---
 drivers/usb/misc/sisusbvga/sisusb.c      |  6 +++---
 drivers/usb/misc/sisusbvga/sisusb_con.c  | 10 +++++-----
 drivers/usb/misc/sisusbvga/sisusb_init.h |  2 +-
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index fc8a5da4a07c..88c4975e303d 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -1283,7 +1283,7 @@ int sisusb_readb(struct sisusb_usb_data *sisusb, u32 adr, u8 *data)
 	return sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, adr, data);
 }
 
-int sisusb_copy_memory(struct sisusb_usb_data *sisusb, char *src,
+int sisusb_copy_memory(struct sisusb_usb_data *sisusb, u8 *src,
 		u32 dest, int length)
 {
 	size_t dummy;
@@ -1307,7 +1307,7 @@ static int sisusb_read_memory(struct sisusb_usb_data *sisusb, char *dest,
 #ifdef SISUSBENDIANTEST
 static void sisusb_testreadwrite(struct sisusb_usb_data *sisusb)
 {
-	static char srcbuffer[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 };
+	static u8 srcbuffer[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 };
 	char destbuffer[10];
 	int i, j;
 
@@ -2340,7 +2340,7 @@ int sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init)
 		}
 
 	} else if (sisusb->scrbuf) {
-		ret |= sisusb_copy_memory(sisusb, (char *)sisusb->scrbuf,
+		ret |= sisusb_copy_memory(sisusb, (u8 *)sisusb->scrbuf,
 				sisusb->vrambase, sisusb->scrbuf_size);
 	}
 
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index cd0155310fea..85a324b658ab 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -509,7 +509,7 @@ sisusbcon_switch(struct vc_data *c)
 	/* Restore the screen contents */
 	memcpy((u16 *)c->vc_origin, (u16 *)c->vc_screenbuf, length);
 
-	sisusb_copy_memory(sisusb, (char *)c->vc_origin,
+	sisusb_copy_memory(sisusb, (u8 *)c->vc_origin,
 			sisusb_haddr(sisusb, c, 0, 0), length);
 
 	mutex_unlock(&sisusb->lock);
@@ -615,7 +615,7 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch)
 		sisusbcon_memsetw((u16 *)c->vc_origin,
 				c->vc_video_erase_char,
 				c->vc_screenbuf_size);
-		sisusb_copy_memory(sisusb, (char *)c->vc_origin,
+		sisusb_copy_memory(sisusb, (u8 *)c->vc_origin,
 				sisusb_haddr(sisusb, c, 0, 0),
 				c->vc_screenbuf_size);
 		sisusb->con_blanked = 1;
@@ -897,18 +897,18 @@ sisusbcon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
 
 	if (copyall)
 		sisusb_copy_memory(sisusb,
-			(char *)c->vc_origin,
+			(u8 *)c->vc_origin,
 			sisusb_haddr(sisusb, c, 0, 0),
 			c->vc_screenbuf_size);
 	else if (dir == SM_UP)
 		sisusb_copy_memory(sisusb,
-			(char *)c->vc_origin + c->vc_screenbuf_size - delta,
+			(u8 *)c->vc_origin + c->vc_screenbuf_size - delta,
 			sisusb_haddr(sisusb, c, 0, 0) +
 					c->vc_screenbuf_size - delta,
 			delta);
 	else
 		sisusb_copy_memory(sisusb,
-			(char *)c->vc_origin,
+			(u8 *)c->vc_origin,
 			sisusb_haddr(sisusb, c, 0, 0),
 			delta);
 
diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.h b/drivers/usb/misc/sisusbvga/sisusb_init.h
index ace09985dae4..d0154394ba12 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_init.h
+++ b/drivers/usb/misc/sisusbvga/sisusb_init.h
@@ -828,7 +828,7 @@ extern int sisusb_setidxregand(struct sisusb_usb_data *sisusb, u32 port,
 void sisusb_delete(struct kref *kref);
 int sisusb_writeb(struct sisusb_usb_data *sisusb, u32 adr, u8 data);
 int sisusb_readb(struct sisusb_usb_data *sisusb, u32 adr, u8 * data);
-int sisusb_copy_memory(struct sisusb_usb_data *sisusb, char *src,
+int sisusb_copy_memory(struct sisusb_usb_data *sisusb, u8 *src,
 		       u32 dest, int length);
 int sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init);
 int sisusbcon_do_font_op(struct sisusb_usb_data *sisusb, int set, int slot,
-- 
2.17.1


  reply	other threads:[~2020-05-30  1:49 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-30  1:48 [PATCH 0/6] USB: sisusbvga: series of changes char to u8 Changming
2020-05-30  1:48 ` Changming [this message]
2020-05-30  1:48 ` [PATCH 2/6] USB: sisusbvga: change sisusb_write_mem_bulk Changming
2020-05-31 21:14   ` kbuild test robot
2020-05-31 21:14     ` kbuild test robot
2020-05-31 21:35   ` kbuild test robot
2020-05-31 21:35     ` kbuild test robot
2020-05-31 21:37   ` kbuild test robot
2020-05-31 21:37     ` kbuild test robot
2020-05-30  1:48 ` [PATCH 3/6] USB: sisusbvga: change sisusb->ibuf,obuf,font_backup Changming
2020-05-30  1:48 ` [PATCH 4/6] USB: sisusbvga: change userbuffer for sisusb_recv_bulk_msg to u8 Changming
2020-05-30  1:48 ` [PATCH 5/6] USB: sisusbvga: change sisusb_read_mem_bulk Changming
2020-05-31 22:26   ` kbuild test robot
2020-05-31 22:26     ` kbuild test robot
2020-05-31 22:43   ` kbuild test robot
2020-05-31 22:43     ` kbuild test robot
2020-05-31 22:47   ` kbuild test robot
2020-05-31 22:47     ` kbuild test robot
2020-05-30  1:48 ` [PATCH 6/6] USB: sisusbvga: change the local char array to u8 array Changming

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