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Date: Sat, 8 Jan 2022 04:08:53 +0800
From: kernel test robot <lkp@...el.com>
To: Andrey Konovalov <andreyknvl@...gle.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Alistair Delva <adelva@...gle.com>,
Vincenzo Frascino <vincenzo.frascino@....com>,
Valdis Kletnieks <valdis.kletnieks@...edu>,
Marco Elver <elver@...gle.com>,
Alexander Potapenko <glider@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>
Subject: [ammarfaizi2-block:google/android/kernel/common/android12-5.10-m2107
1559/8698] arch/s390/mm/kasan_init.c:419:13: warning: no previous prototype
for 'kasan_copy_shadow'
Hi Andrey,
FYI, the error/warning still remains.
tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-5.10-m2107
head: 6b5101a5720784d91a53168bfbc90c940ee6817f
commit: f4fb11566b5eb19aa91f674123a365854ab1470f [1559/8698] UPSTREAM: kasan: shadow declarations only for software modes
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20220108/202201080319.dgPwSoQr-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 11.2.0
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://github.com/ammarfaizi2/linux-block/commit/f4fb11566b5eb19aa91f674123a365854ab1470f
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-5.10-m2107
git checkout f4fb11566b5eb19aa91f674123a365854ab1470f
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash arch/s390/mm/ lib/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/kasan.h:15,
from arch/s390/mm/kasan_init.c:2:
arch/s390/include/asm/kasan.h:20:31: error: unknown type name 'pgd_t'; did you mean 'pid_t'?
20 | extern void kasan_copy_shadow(pgd_t *dst);
| ^~~~~
| pid_t
>> arch/s390/mm/kasan_init.c:419:13: warning: no previous prototype for 'kasan_copy_shadow' [-Wmissing-prototypes]
419 | void __init kasan_copy_shadow(pgd_t *pg_dir)
| ^~~~~~~~~~~~~~~~~
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for WIRELESS_EXT
Depends on NET && WIRELESS
Selected by
- GKI_LEGACY_WEXT_ALLCONFIG
WARNING: unmet direct dependencies detected for WEXT_CORE
Depends on NET && WIRELESS && (CFG80211_WEXT || WIRELESS_EXT
Selected by
- GKI_LEGACY_WEXT_ALLCONFIG
WARNING: unmet direct dependencies detected for WEXT_PROC
Depends on NET && WIRELESS && PROC_FS && WEXT_CORE
Selected by
- GKI_LEGACY_WEXT_ALLCONFIG
WARNING: unmet direct dependencies detected for WEXT_PRIV
Depends on NET && WIRELESS
Selected by
- GKI_LEGACY_WEXT_ALLCONFIG
WARNING: unmet direct dependencies detected for WEXT_SPY
Depends on NET && WIRELESS
Selected by
- GKI_LEGACY_WEXT_ALLCONFIG
vim +/kasan_copy_shadow +419 arch/s390/mm/kasan_init.c
42db5ed86090d8 Vasily Gorbik 2017-11-17 418
42db5ed86090d8 Vasily Gorbik 2017-11-17 @419 void __init kasan_copy_shadow(pgd_t *pg_dir)
42db5ed86090d8 Vasily Gorbik 2017-11-17 420 {
42db5ed86090d8 Vasily Gorbik 2017-11-17 421 /*
42db5ed86090d8 Vasily Gorbik 2017-11-17 422 * At this point we are still running on early pages setup early_pg_dir,
42db5ed86090d8 Vasily Gorbik 2017-11-17 423 * while swapper_pg_dir has just been initialized with identity mapping.
42db5ed86090d8 Vasily Gorbik 2017-11-17 424 * Carry over shadow memory region from early_pg_dir to swapper_pg_dir.
42db5ed86090d8 Vasily Gorbik 2017-11-17 425 */
42db5ed86090d8 Vasily Gorbik 2017-11-17 426
42db5ed86090d8 Vasily Gorbik 2017-11-17 427 pgd_t *pg_dir_src;
42db5ed86090d8 Vasily Gorbik 2017-11-17 428 pgd_t *pg_dir_dst;
42db5ed86090d8 Vasily Gorbik 2017-11-17 429 p4d_t *p4_dir_src;
42db5ed86090d8 Vasily Gorbik 2017-11-17 430 p4d_t *p4_dir_dst;
42db5ed86090d8 Vasily Gorbik 2017-11-17 431 pud_t *pu_dir_src;
42db5ed86090d8 Vasily Gorbik 2017-11-17 432 pud_t *pu_dir_dst;
42db5ed86090d8 Vasily Gorbik 2017-11-17 433
42db5ed86090d8 Vasily Gorbik 2017-11-17 434 pg_dir_src = pgd_offset_raw(early_pg_dir, KASAN_SHADOW_START);
42db5ed86090d8 Vasily Gorbik 2017-11-17 435 pg_dir_dst = pgd_offset_raw(pg_dir, KASAN_SHADOW_START);
42db5ed86090d8 Vasily Gorbik 2017-11-17 436 p4_dir_src = p4d_offset(pg_dir_src, KASAN_SHADOW_START);
42db5ed86090d8 Vasily Gorbik 2017-11-17 437 p4_dir_dst = p4d_offset(pg_dir_dst, KASAN_SHADOW_START);
42db5ed86090d8 Vasily Gorbik 2017-11-17 438 if (!p4d_folded(*p4_dir_src)) {
42db5ed86090d8 Vasily Gorbik 2017-11-17 439 /* 4 level paging */
42db5ed86090d8 Vasily Gorbik 2017-11-17 440 memcpy(p4_dir_dst, p4_dir_src,
42db5ed86090d8 Vasily Gorbik 2017-11-17 441 (KASAN_SHADOW_SIZE >> P4D_SHIFT) * sizeof(p4d_t));
42db5ed86090d8 Vasily Gorbik 2017-11-17 442 return;
42db5ed86090d8 Vasily Gorbik 2017-11-17 443 }
42db5ed86090d8 Vasily Gorbik 2017-11-17 444 /* 3 level paging */
42db5ed86090d8 Vasily Gorbik 2017-11-17 445 pu_dir_src = pud_offset(p4_dir_src, KASAN_SHADOW_START);
42db5ed86090d8 Vasily Gorbik 2017-11-17 446 pu_dir_dst = pud_offset(p4_dir_dst, KASAN_SHADOW_START);
42db5ed86090d8 Vasily Gorbik 2017-11-17 447 memcpy(pu_dir_dst, pu_dir_src,
42db5ed86090d8 Vasily Gorbik 2017-11-17 448 (KASAN_SHADOW_SIZE >> PUD_SHIFT) * sizeof(pud_t));
42db5ed86090d8 Vasily Gorbik 2017-11-17 449 }
135ff163939294 Vasily Gorbik 2017-11-20 450
:::::: The code at line 419 was first introduced by commit
:::::: 42db5ed86090d8e57ca08bfd162a10be6320cc49 s390/kasan: add initialization code and enable it
:::::: TO: Vasily Gorbik <gor@...ux.ibm.com>
:::::: CC: Martin Schwidefsky <schwidefsky@...ibm.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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