From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH 6/8 V2] rtlwifi: Fix smatch warnings in usb.c
Date: Mon, 16 Sep 2013 23:07:40 +0400 [thread overview]
Message-ID: <523756FC.1050905@cogentembedded.com> (raw)
In-Reply-To: <1379357722-17687-7-git-send-email-Larry.Finger@lwfinger.net>
On 09/16/2013 10:55 PM, Larry Finger wrote:
> Smatch displays the following:
> CHECK drivers/net/wireless/rtlwifi/usb.c
> drivers/net/wireless/rtlwifi/usb.c:458 _rtl_usb_rx_process_agg() warn: assigning (-98) to unsigned variable 'stats.noise'
> drivers/net/wireless/rtlwifi/usb.c:503 _rtl_usb_rx_process_noagg() warn: assigning (-98) to unsigned variable 'stats.noise'
> drivers/net/wireless/rtlwifi/usb.c:596 _rtl_rx_get_padding() info: ignoring unreachable code.
> drivers/net/wireless/rtlwifi/usb.c:596 _rtl_rx_get_padding() info: ignoring unreachable code.
> The negative number to an unsigned quantity is fixed by removing the variable
> as it is no longer used.
You're removing only structure field initializer, not a variable.
> The unreachable code info is fixed by including the
> appropriate section inside #ifdef .. #endif constructions.
> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
> ---
> drivers/net/wireless/rtlwifi/usb.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
> diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
> index e56778c..60cb0b4 100644
> --- a/drivers/net/wireless/rtlwifi/usb.c
> +++ b/drivers/net/wireless/rtlwifi/usb.c
> @@ -455,7 +455,6 @@ static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
> struct ieee80211_rx_status rx_status = {0};
> struct rtl_stats stats = {
> .signal = 0,
> - .noise = -98,
> .rate = 0,
> };
>
> @@ -498,7 +497,6 @@ static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
> struct ieee80211_rx_status rx_status = {0};
> struct rtl_stats stats = {
> .signal = 0,
> - .noise = -98,
> .rate = 0,
> };
>
> @@ -582,12 +580,15 @@ static void _rtl_rx_work(unsigned long param)
> static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
> unsigned int len)
> {
> +#if NET_IP_ALIGN != 0
> unsigned int padding = 0;
> +#endif
>
> /* make function no-op when possible */
> - if (NET_IP_ALIGN == 0 || len < sizeof(*hdr))
> + if (NET_IP_ALIGN == 0 || len < sizeof(struct ieee80211_hdr))
Hm, I thought you were going to remove this collateral change.
> return 0;
WBR, Sergei
next prev parent reply other threads:[~2013-09-16 19:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-16 18:55 [PATCH 0/8i V2] rtlwifi: Patches to fix problems shown by smatch Larry Finger
2013-09-16 18:55 ` [PATCH 1/8 V2] rtlwifi: rtl8192du: Fix smatch errors in /rtl8192de/dm.c Larry Finger
2013-09-16 18:55 ` [PATCH 2/8 V2] rtlwifi: rtl8192de: Fix smatch warnings in rtl8192de/hw.c Larry Finger
2013-09-16 21:44 ` Kalle Valo
2013-09-16 18:55 ` [PATCH 3/8 V2] rtlwifi: rtl8192cu: Fix smatch warning in rtl8192cu/trx.c Larry Finger
2013-09-16 19:05 ` Sergei Shtylyov
2013-09-16 18:55 ` [PATCH 4/8 V2] rtlwifi: rtl8192_common: Fix smatch errors and warnings in rtl8192c/dm_common.c Larry Finger
2013-09-16 19:02 ` Sergei Shtylyov
2013-09-16 19:07 ` Larry Finger
2013-09-16 19:10 ` Sergei Shtylyov
2013-09-16 18:55 ` [PATCH 5/8 V2] [PATCH 5/7: rtlwifi: Fix smatch warning in pci.c Larry Finger
2013-09-16 19:04 ` Sergei Shtylyov
2013-09-16 19:11 ` Sergei Shtylyov
2013-09-16 18:55 ` [PATCH 6/8 V2] rtlwifi: Fix smatch warnings in usb.c Larry Finger
2013-09-16 19:07 ` Sergei Shtylyov [this message]
2013-09-16 18:55 ` [PATCH 7/8 V2] rtlwifi: rtl8188ee: Fix smatch warning in rtl8188ee/hw.c Larry Finger
2013-09-16 18:55 ` [PATCH 8/8 V2] rtlwifi: Remove variable 'noise' from rtl_stats struct Larry Finger
2013-09-17 8:48 ` David Laight
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