Re: [PATCH 08/15] rtlwifi: rtl8192de: fix decimal printf format specifiers prefixed with 0x

From: Larry Finger
Date: Wed Aug 06 2014 - 10:39:12 EST


On 08/05/2014 11:43 PM, Hans Wennborg wrote:
> The prefix suggests the number should be printed in hex, so use
> the %x specifier to do that.
>
> Found by using regex suggested by Joe Perches.
>
> Signed-off-by: Hans Wennborg <hans@xxxxxxxxxx>
> ---
> drivers/net/wireless/rtlwifi/rtl8192de/fw.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c
> index 2317707..66e1760 100644
> --- a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c
> +++ b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c
> @@ -234,7 +234,7 @@ static int _rtl92d_fw_init(struct ieee80211_hw *hw)
> rtl_read_byte(rtlpriv, FW_MAC1_READY));
> }
> RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG,
> - "Polling FW ready fail!! REG_MCUFWDL:0x%08ul\n",
> + "Polling FW ready fail!! REG_MCUFWDL:0x%08lx\n",
> rtl_read_dword(rtlpriv, REG_MCUFWDL));
> return -1;
> }

It would be best to actually build with your patches installed. This one yields
the following warning:

CC [M] drivers/net/wireless/rtlwifi/rtl8192de/fw.o
drivers/net/wireless/rtlwifi/rtl8192de/fw.c: In function ‘_rtl92d_fw_init’:
drivers/net/wireless/rtlwifi/rtl8192de/fw.c:236:2: warning: format ‘%lx’ expects
argument of type ‘long unsigned int’, but argument 5 has type ‘u32’ [-Wformat=]
RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG,
^

The format specifier should be %04x, not %08lx. I have no idea why gcc did not
complain as %08ul is also wrong.

Larry

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