[rt-devel:linux-5.15.y-rt-rebase 45/158] net/sched/sch_gred.c:902:13: error: stack frame size (1184) exceeds limit (1024) in 'gred_destroy'

From: kernel test robot
Date: Tue Nov 02 2021 - 15:47:51 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.15.y-rt-rebase
head: f44dccacf55b7d1e3a6541b19ab39a9c425b41c8
commit: 4502dc5ee9ba8aaf3ef291e8995443fdb70e8345 [45/158] net: sched: Protect Qdisc::bstats with u64_stats
config: hexagon-buildonly-randconfig-r005-20211101 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 264d3b6d4e08401c5b50a85bd76e80b3461d77e6)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?id=4502dc5ee9ba8aaf3ef291e8995443fdb70e8345
git remote add rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
git fetch --no-tags rt-devel linux-5.15.y-rt-rebase
git checkout 4502dc5ee9ba8aaf3ef291e8995443fdb70e8345
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> net/sched/sch_gred.c:902:13: error: stack frame size (1184) exceeds limit (1024) in 'gred_destroy' [-Werror,-Wframe-larger-than]
static void gred_destroy(struct Qdisc *sch)
^
>> net/sched/sch_gred.c:310:13: error: stack frame size (1184) exceeds limit (1024) in 'gred_offload' [-Werror,-Wframe-larger-than]
static void gred_offload(struct Qdisc *sch, enum tc_gred_command command)
^
2 errors generated.


vim +/gred_destroy +902 net/sched/sch_gred.c

^1da177e4c3f41 Linus Torvalds 2005-04-16 901
^1da177e4c3f41 Linus Torvalds 2005-04-16 @902 static void gred_destroy(struct Qdisc *sch)
^1da177e4c3f41 Linus Torvalds 2005-04-16 903 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 904 struct gred_sched *table = qdisc_priv(sch);
^1da177e4c3f41 Linus Torvalds 2005-04-16 905 int i;
^1da177e4c3f41 Linus Torvalds 2005-04-16 906
^1da177e4c3f41 Linus Torvalds 2005-04-16 907 for (i = 0; i < table->DPs; i++) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 908 if (table->tab[i])
6639607ed9deae Thomas Graf 2005-11-05 909 gred_destroy_vq(table->tab[i]);
^1da177e4c3f41 Linus Torvalds 2005-04-16 910 }
890d8d23ec3c9e Jakub Kicinski 2018-11-19 911 gred_offload(sch, TC_GRED_DESTROY);
^1da177e4c3f41 Linus Torvalds 2005-04-16 912 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 913

:::::: The code at line 902 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip