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Date: Mon, 16 Sep 2013 23:07:40 +0400 From: Sergei Shtylyov <sergei.shtylyov@...entembedded.com> To: Larry Finger <Larry.Finger@...inger.net> CC: linville@...driver.com, linux-wireless@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [PATCH 6/8 V2] rtlwifi: Fix smatch warnings in usb.c 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@...inger.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 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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