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SubjectRe: [PATCH] rtw88: fix fw_fifo_addr check
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
>

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