| Message ID | 20201011155438.15892-1-trix@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | rtw88: fix fw_fifo_addr check | expand |
On Sun, Oct 11, 2020 at 08:54:38AM -0700, trix@redhat.com wrote: > From: Tom Rix <trix@redhat.com> > > The clang build reports this warning > > fw.c:1485:21: warning: address of array 'rtwdev->chip->fw_fifo_addr' > will always evaluate to 'true' > if (!rtwdev->chip->fw_fifo_addr) { > > fw_fifo_addr is an array in rtw_chip_info so it is always > nonzero. A better check is if the first element of the array is > nonzero. In the cases where fw_fifo_addr is initialized by rtw88b > and rtw88c, the first array element is 0x780. > > Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> > --- > drivers/net/wireless/realtek/rtw88/fw.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c > index 042015bc8055..b2fd87834f23 100644 > --- a/drivers/net/wireless/realtek/rtw88/fw.c > +++ b/drivers/net/wireless/realtek/rtw88/fw.c > @@ -1482,7 +1482,7 @@ static bool rtw_fw_dump_check_size(struct rtw_dev *rtwdev, > int rtw_fw_dump_fifo(struct rtw_dev *rtwdev, u8 fifo_sel, u32 addr, u32 size, > u32 *buffer) > { > - if (!rtwdev->chip->fw_fifo_addr) { > + if (!rtwdev->chip->fw_fifo_addr[0]) { > rtw_dbg(rtwdev, RTW_DBG_FW, "chip not support dump fw fifo\n"); > return -ENOTSUPP; > } > -- > 2.18.1 >
> On Sun, Oct 11, 2020 at 08:54:38AM -0700, trix@redhat.com wrote: > > From: Tom Rix <trix@redhat.com> > > > > The clang build reports this warning > > > > fw.c:1485:21: warning: address of array 'rtwdev->chip->fw_fifo_addr' > > will always evaluate to 'true' > > if (!rtwdev->chip->fw_fifo_addr) { > > > > fw_fifo_addr is an array in rtw_chip_info so it is always nonzero. A > > better check is if the first element of the array is nonzero. In the > > cases where fw_fifo_addr is initialized by rtw88b and rtw88c, the > > first array element is 0x780. > > > > Signed-off-by: Tom Rix <trix@redhat.com> > > Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> > Thanks for your fix, Acked-by: Tzu-En Huang <tehuang@realtek.com> > > --- > > drivers/net/wireless/realtek/rtw88/fw.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/net/wireless/realtek/rtw88/fw.c > > b/drivers/net/wireless/realtek/rtw88/fw.c > > index 042015bc8055..b2fd87834f23 100644 > > --- a/drivers/net/wireless/realtek/rtw88/fw.c > > +++ b/drivers/net/wireless/realtek/rtw88/fw.c > > @@ -1482,7 +1482,7 @@ static bool rtw_fw_dump_check_size(struct > > rtw_dev *rtwdev, int rtw_fw_dump_fifo(struct rtw_dev *rtwdev, u8 > fifo_sel, u32 addr, u32 size, > > u32 *buffer) > > { > > - if (!rtwdev->chip->fw_fifo_addr) { > > + if (!rtwdev->chip->fw_fifo_addr[0]) { > > rtw_dbg(rtwdev, RTW_DBG_FW, "chip not support dump fw fifo\n"); > > return -ENOTSUPP; > > } > > -- > > 2.18.1 > > > > ------Please consider the environment before printing this e-mail.
trix@redhat.com wrote: > From: Tom Rix <trix@redhat.com> > > The clang build reports this warning > > fw.c:1485:21: warning: address of array 'rtwdev->chip->fw_fifo_addr' > will always evaluate to 'true' > if (!rtwdev->chip->fw_fifo_addr) { > > fw_fifo_addr is an array in rtw_chip_info so it is always > nonzero. A better check is if the first element of the array is > nonzero. In the cases where fw_fifo_addr is initialized by rtw88b > and rtw88c, the first array element is 0x780. > > Fixes: 0fbc2f0f34cc ("rtw88: add dump firmware fifo support") > Signed-off-by: Tom Rix <trix@redhat.com> > Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> > Acked-by: Tzu-En Huang <tehuang@realtek.com> Patch applied to wireless-drivers.git, thanks. ddcd945e556e rtw88: fix fw_fifo_addr check -- https://patchwork.kernel.org/project/linux-wireless/patch/20201011155438.15892-1-trix@redhat.com/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c index 042015bc8055..b2fd87834f23 100644 --- a/drivers/net/wireless/realtek/rtw88/fw.c +++ b/drivers/net/wireless/realtek/rtw88/fw.c @@ -1482,7 +1482,7 @@ static bool rtw_fw_dump_check_size(struct rtw_dev *rtwdev, int rtw_fw_dump_fifo(struct rtw_dev *rtwdev, u8 fifo_sel, u32 addr, u32 size, u32 *buffer) { - if (!rtwdev->chip->fw_fifo_addr) { + if (!rtwdev->chip->fw_fifo_addr[0]) { rtw_dbg(rtwdev, RTW_DBG_FW, "chip not support dump fw fifo\n"); return -ENOTSUPP; }