net/mac80211/util.c:2507:5: warning: stack frame size (2096) exceeds limit (2048) in 'ieee80211_reconfig'
From: kernel test robot
Date: Sun Jul 23 2023 - 21:14:06 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 6eaae198076080886b9e7d57f4ae06fa782f90ef
commit: 61403414e1719f929386dda8fb954bb302628ef3 wifi: mac80211: implement proper AP MLD HW restart
date: 7 weeks ago
config: riscv-randconfig-r042-20230724 (https://download.01.org/0day-ci/archive/20230724/202307240925.c84SraKs-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230724/202307240925.c84SraKs-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307240925.c84SraKs-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
net/mac80211/util.c:995:1: warning: stack frame size (2672) exceeds limit (2048) in '_ieee802_11_parse_elems_full' [-Wframe-larger-than]
995 | _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params,
| ^
>> net/mac80211/util.c:2507:5: warning: stack frame size (2096) exceeds limit (2048) in 'ieee80211_reconfig' [-Wframe-larger-than]
2507 | int ieee80211_reconfig(struct ieee80211_local *local)
| ^
2 warnings generated.
vim +/ieee80211_reconfig +2507 net/mac80211/util.c
61403414e1719f Johannes Berg 2023-05-04 2506
f2753ddbadb087 Johannes Berg 2009-04-14 @2507 int ieee80211_reconfig(struct ieee80211_local *local)
f2753ddbadb087 Johannes Berg 2009-04-14 2508 {
f2753ddbadb087 Johannes Berg 2009-04-14 2509 struct ieee80211_hw *hw = &local->hw;
f2753ddbadb087 Johannes Berg 2009-04-14 2510 struct ieee80211_sub_if_data *sdata;
55de908ab292c0 Johannes Berg 2012-07-26 2511 struct ieee80211_chanctx *ctx;
f2753ddbadb087 Johannes Berg 2009-04-14 2512 struct sta_info *sta;
2683d65bb016a0 Eliad Peller 2011-07-14 2513 int res, i;
d888130a024d1d Johannes Berg 2013-01-10 2514 bool reconfig_due_to_wowlan = false;
d43c6b6e6f2fca David Spinadel 2013-12-08 2515 struct ieee80211_sub_if_data *sched_scan_sdata;
6ea0a69ca21bbd Johannes Berg 2014-11-19 2516 struct cfg80211_sched_scan_request *sched_scan_req;
d43c6b6e6f2fca David Spinadel 2013-12-08 2517 bool sched_scan_stopped = false;
b0485e9f3defbe Eliad Peller 2015-07-08 2518 bool suspended = local->suspended;
7d352ccf1e9935 Youghandhar Chintala 2022-03-08 2519 bool in_reconfig = false;
d888130a024d1d Johannes Berg 2013-01-10 2520
0f8b82456178d5 Eliad Peller 2014-12-14 2521 /* nothing to do if HW shouldn't run */
0f8b82456178d5 Eliad Peller 2014-12-14 2522 if (!local->open_count)
0f8b82456178d5 Eliad Peller 2014-12-14 2523 goto wake_up;
0f8b82456178d5 Eliad Peller 2014-12-14 2524
:::::: The code at line 2507 was first introduced by commit
:::::: f2753ddbadb0873a98421415882318251bbd9eaa mac80211: add hardware restart function
:::::: TO: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
:::::: CC: John W. Linville <linville@xxxxxxxxxxxxx>
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