* [PATCH v2] staging: r8723au: This patch tries to fix some byte order issues that is found by sparse check.
@ 2016-04-29 2:09 Jandy Gou
2016-04-29 2:30 ` Jes Sorensen
0 siblings, 1 reply; 2+ messages in thread
From: Jandy Gou @ 2016-04-29 2:09 UTC (permalink / raw)
To: Larry.Finger, Jes.Sorensen, gregkh, shraddha.6596, hgujulan
Cc: linux-wireless, devel, linux-kernel, Jandy Gou
make C=1 M=drivers/staging/rtl8723au/
drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:96:38: warning: cast to
restricted __le16
drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:100:27: warning: cast to
restricted __le32
Signed-off-by: Jandy Gou <qingsong.gou@ck-telecom.com>
---
drivers/staging/rtl8723au/hal/rtl8723a_cmd.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
index 1662c03c..fff652c 100644
--- a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
+++ b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
@@ -56,8 +56,8 @@ int FillH2CCmd(struct rtw_adapter *padapter, u8 ElementID, u32 CmdLen,
u32 msgbox_addr;
u32 msgbox_ex_addr;
struct hal_data_8723a *pHalData;
- u32 h2c_cmd = 0;
- u16 h2c_cmd_ex = 0;
+ __le32 h2c_cmd = 0;
+ __le16 h2c_cmd_ex = 0;
int ret = _FAIL;
padapter = GET_PRIMARY_ADAPTER(padapter);
@@ -91,14 +91,12 @@ int FillH2CCmd(struct rtw_adapter *padapter, u8 ElementID, u32 CmdLen,
*(u8 *)(&h2c_cmd) |= ElementID;
- if (h2c_cmd & BIT(7)) {
+ if (le32_to_cpu(h2c_cmd) & BIT(7)) {
msgbox_ex_addr = REG_HMEBOX_EXT_0 + (h2c_box_num * EX_MESSAGE_BOX_SIZE);
- h2c_cmd_ex = le16_to_cpu(h2c_cmd_ex);
- rtl8723au_write16(padapter, msgbox_ex_addr, h2c_cmd_ex);
+ rtl8723au_write16(padapter, msgbox_ex_addr, le16_to_cpu(h2c_cmd_ex));
}
msgbox_addr = REG_HMEBOX_0 + (h2c_box_num * MESSAGE_BOX_SIZE);
- h2c_cmd = le32_to_cpu(h2c_cmd);
- rtl8723au_write32(padapter, msgbox_addr, h2c_cmd);
+ rtl8723au_write32(padapter, msgbox_addr, le32_to_cpu(h2c_cmd));
bcmd_down = true;
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] staging: r8723au: This patch tries to fix some byte order issues that is found by sparse check.
2016-04-29 2:09 [PATCH v2] staging: r8723au: This patch tries to fix some byte order issues that is found by sparse check Jandy Gou
@ 2016-04-29 2:30 ` Jes Sorensen
0 siblings, 0 replies; 2+ messages in thread
From: Jes Sorensen @ 2016-04-29 2:30 UTC (permalink / raw)
To: Jandy Gou
Cc: Larry.Finger, gregkh, shraddha.6596, hgujulan, linux-wireless,
devel, linux-kernel
Jandy Gou <qingsong.gou@ck-telecom.com> writes:
> make C=1 M=drivers/staging/rtl8723au/
>
> drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:96:38: warning: cast to
> restricted __le16
> drivers/staging/rtl8723au/hal/rtl8723a_cmd.c:100:27: warning: cast to
> restricted __le32
>
> Signed-off-by: Jandy Gou <qingsong.gou@ck-telecom.com>
> ---
> drivers/staging/rtl8723au/hal/rtl8723a_cmd.c | 12 +++++-------
> 1 file changed, 5 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
> index 1662c03c..fff652c 100644
> --- a/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
> +++ b/drivers/staging/rtl8723au/hal/rtl8723a_cmd.c
> @@ -56,8 +56,8 @@ int FillH2CCmd(struct rtw_adapter *padapter, u8 ElementID, u32 CmdLen,
> u32 msgbox_addr;
> u32 msgbox_ex_addr;
> struct hal_data_8723a *pHalData;
> - u32 h2c_cmd = 0;
> - u16 h2c_cmd_ex = 0;
> + __le32 h2c_cmd = 0;
> + __le16 h2c_cmd_ex = 0;
> int ret = _FAIL;
>
> padapter = GET_PRIMARY_ADAPTER(padapter);
> @@ -91,14 +91,12 @@ int FillH2CCmd(struct rtw_adapter *padapter, u8 ElementID, u32 CmdLen,
>
> *(u8 *)(&h2c_cmd) |= ElementID;
>
> - if (h2c_cmd & BIT(7)) {
> + if (le32_to_cpu(h2c_cmd) & BIT(7)) {
> msgbox_ex_addr = REG_HMEBOX_EXT_0 + (h2c_box_num * EX_MESSAGE_BOX_SIZE);
> - h2c_cmd_ex = le16_to_cpu(h2c_cmd_ex);
> - rtl8723au_write16(padapter, msgbox_ex_addr, h2c_cmd_ex);
> + rtl8723au_write16(padapter, msgbox_ex_addr, le16_to_cpu(h2c_cmd_ex));
> }
This actually changes the behavior on big-endian systems. Did you test
this?
Second, the last line makes the line more than 80 charaters whish is
wrong.
Jes
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2016-04-29 2:09 [PATCH v2] staging: r8723au: This patch tries to fix some byte order issues that is found by sparse check Jandy Gou
2016-04-29 2:30 ` Jes Sorensen
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