linux-kernel - net/mac80211/rx.c:4062:13: warning: stack frame size (10656) exceeds limit (8192) in 'ieee80211_rx

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Date:   Sun, 16 Jul 2023 05:48:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     Johannes Berg <johannes.berg@...el.com>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>
Subject: net/mac80211/rx.c:4062:13: warning: stack frame size (10656) exceeds
 limit (8192) in 'ieee80211_rx_handlers'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   831fe284d8275987596b7d640518dddba5735f61
commit: baa951a1c1771810f3a378a95fc93e81953027d5 mac80211: use the new drop reasons infrastructure
date:   3 months ago
config: riscv-randconfig-r021-20230716 (https://download.01.org/0day-ci/archive/20230716/202307160536.eNpCzzGh-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce: (https://download.01.org/0day-ci/archive/20230716/202307160536.eNpCzzGh-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307160536.eNpCzzGh-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> net/mac80211/rx.c:4062:13: warning: stack frame size (10656) exceeds limit (8192) in 'ieee80211_rx_handlers' [-Wframe-larger-than]
   static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx,
               ^
   1 warning generated.


vim +/ieee80211_rx_handlers +4062 net/mac80211/rx.c

aa0c86364f925c Christian Lamparter 2010-08-05  4061  
f9e124fbd8cbea Christian Lamparter 2013-02-04 @4062  static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx,
f9e124fbd8cbea Christian Lamparter 2013-02-04  4063  				  struct sk_buff_head *frames)
aa0c86364f925c Christian Lamparter 2010-08-05  4064  {
aa0c86364f925c Christian Lamparter 2010-08-05  4065  	ieee80211_rx_result res = RX_DROP_MONITOR;
aa0c86364f925c Christian Lamparter 2010-08-05  4066  	struct sk_buff *skb;
8944b79fe9b1fe Johannes Berg       2008-01-31  4067  

:::::: The code at line 4062 was first introduced by commit
:::::: f9e124fbd8cbea974b5dc7e9dafddd17d21df7e2 mac80211: protect rx-path with spinlock

:::::: TO: Christian Lamparter <chunkeey@...glemail.com>
:::::: CC: Johannes Berg <johannes.berg@...el.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki