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Subjectdrivers/staging/media/hantro/hantro_g2_hevc_dec.c:536:5: warning: stack frame size (1248) exceeds limit (1024) in function 'hantro_g2_hevc_dec_run'
Hi Benjamin,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3d5895cd351757f69c9a66fb5fc8cf19f454d773
commit: cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c media: hantro: Introduce G2/HEVC decoder
date: 6 weeks ago
config: powerpc64-randconfig-r013-20210722 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9625ca5b602616b2f5584e8a49ba93c52c141e40)
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
# install powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64

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

All warnings (new ones prefixed by >>):

In file included from drivers/staging/media/hantro/hantro_g2_hevc_dec.c:8:
In file included from drivers/staging/media/hantro/hantro_hw.h:12:
In file included from include/linux/interrupt.h:6:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:32:
In file included from arch/powerpc/include/asm/bitops.h:62:
arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
#define __lwsync() __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
^
<built-in>:310:9: note: previous definition is here
#define __lwsync __builtin_ppc_lwsync
^
>> drivers/staging/media/hantro/hantro_g2_hevc_dec.c:536:5: warning: stack frame size (1248) exceeds limit (1024) in function 'hantro_g2_hevc_dec_run' [-Wframe-larger-than]
int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx)
^
2 warnings generated.


vim +/hantro_g2_hevc_dec_run +536 drivers/staging/media/hantro/hantro_g2_hevc_dec.c

535
> 536 int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx)

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