[linux-stable-rc:linux-5.10.y 3189/3969] drivers/scsi/qla4xxx/ql4_nx.c:3239:6: warning: stack frame size (2320) exceeds limit (2048) in function 'qla4_8xxx_get_minidump'

From: kernel test robot
Date: Fri Aug 20 2021 - 12:45:45 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
head: 65f1995ea1e930674e76c5888b4643581e11434c
commit: 5f2f616343b1d62d26f24316fbfc107ecf0983a9 [3189/3969] linux/compiler-clang.h: define HAVE_BUILTIN_BSWAP*
config: powerpc64-randconfig-r014-20210820 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d9c5613e856cf2addfbf892fc4c1ce9ef9feceaa)
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/stable/linux-stable-rc.git/commit/?id=5f2f616343b1d62d26f24316fbfc107ecf0983a9
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc linux-5.10.y
git checkout 5f2f616343b1d62d26f24316fbfc107ecf0983a9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc

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

All warnings (new ones prefixed by >>):

In file included from drivers/scsi/qla4xxx/ql4_nx.c:6:
In file included from include/linux/delay.h:22:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
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/scsi/qla4xxx/ql4_nx.c:3651:1: warning: unused function 'flash_data_addr' [-Wunused-function]
flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
^
>> drivers/scsi/qla4xxx/ql4_nx.c:3239:6: warning: stack frame size (2320) exceeds limit (2048) in function 'qla4_8xxx_get_minidump' [-Wframe-larger-than]
void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
^
3 warnings generated.


vim +/qla4_8xxx_get_minidump +3239 drivers/scsi/qla4xxx/ql4_nx.c

068237c87c6474 Tej Parkash 2012-05-18 3238
6e7b429259fc0b Vikas Chaudhary 2012-08-22 @3239 void qla4_8xxx_get_minidump(struct scsi_qla_host *ha)
aec07caedbb769 Vikas Chaudhary 2012-08-22 3240 {
aec07caedbb769 Vikas Chaudhary 2012-08-22 3241 if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
aec07caedbb769 Vikas Chaudhary 2012-08-22 3242 !test_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
aec07caedbb769 Vikas Chaudhary 2012-08-22 3243 if (!qla4_8xxx_collect_md_data(ha)) {
aec07caedbb769 Vikas Chaudhary 2012-08-22 3244 qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
aec07caedbb769 Vikas Chaudhary 2012-08-22 3245 set_bit(AF_82XX_FW_DUMPED, &ha->flags);
aec07caedbb769 Vikas Chaudhary 2012-08-22 3246 } else {
aec07caedbb769 Vikas Chaudhary 2012-08-22 3247 ql4_printk(KERN_INFO, ha, "%s: Unable to collect minidump\n",
aec07caedbb769 Vikas Chaudhary 2012-08-22 3248 __func__);
aec07caedbb769 Vikas Chaudhary 2012-08-22 3249 }
aec07caedbb769 Vikas Chaudhary 2012-08-22 3250 }
aec07caedbb769 Vikas Chaudhary 2012-08-22 3251 }
aec07caedbb769 Vikas Chaudhary 2012-08-22 3252

:::::: The code at line 3239 was first introduced by commit
:::::: 6e7b429259fc0b7f2d9b1147466656b34d114815 [SCSI] qla4xxx: Added support for ISP83XX

:::::: TO: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx>
:::::: CC: James Bottomley <JBottomley@xxxxxxxxxxxxx>

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

Attachment: .config.gz
Description: application/gzip