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Message-ID: <202201090602.3hmcOZA2-lkp@intel.com>
Date: Sun, 9 Jan 2022 06:42:59 +0800
From: kernel test robot <lkp@...el.com>
To: Sudarshan Rajagopalan <sudaraja@...eaurora.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org,
Suren Baghdasaryan <surenb@...gle.com>
Subject: [ammarfaizi2-block:google/android/kernel/common/android12-5.10-m2107
1060/8698] arch/arm64/mm/mmu.c:1499:5: warning: no previous prototype for
function 'check_range_driver_managed'
Hi Sudarshan,
FYI, the error/warning still remains.
tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-5.10-m2107
head: 6b5101a5720784d91a53168bfbc90c940ee6817f
commit: 1b4aca7d82ae9b40145484fa09ceab38a6a06062 [1060/8698] ANDROID: arm64/mm: implement {populate/depopulate}_range_driver_managed
config: arm64-randconfig-r024-20220107 (https://download.01.org/0day-ci/archive/20220109/202201090602.3hmcOZA2-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 32167bfe64a4c5dd4eb3f7a58e24f4cba76f5ac2)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/ammarfaizi2/linux-block/commit/1b4aca7d82ae9b40145484fa09ceab38a6a06062
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 1b4aca7d82ae9b40145484fa09ceab38a6a06062
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/mm/
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 >>):
arch/arm64/mm/mmu.c:689:10: warning: variable 'bm_pudp' set but not used [-Wunused-but-set-variable]
pud_t *bm_pudp;
^
arch/arm64/mm/mmu.c:1510:17: warning: format specifies type 'unsigned long' but the argument has type 'u64' (aka 'unsigned long long') [-Wformat]
__func__, start);
^~~~~
include/linux/printk.h:343:33: note: expanded from macro 'pr_err'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
>> arch/arm64/mm/mmu.c:1499:5: warning: no previous prototype for function 'check_range_driver_managed' [-Wmissing-prototypes]
int check_range_driver_managed(u64 start, u64 size, const char *resource_name)
^
arch/arm64/mm/mmu.c:1499:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int check_range_driver_managed(u64 start, u64 size, const char *resource_name)
^
static
3 warnings generated.
vim +/check_range_driver_managed +1499 arch/arm64/mm/mmu.c
1498
> 1499 int check_range_driver_managed(u64 start, u64 size, const char *resource_name)
1500 {
1501 struct mem_section *ms;
1502 unsigned long pfn = __phys_to_pfn(start);
1503 unsigned long end_pfn = __phys_to_pfn(start + size);
1504 struct resource *res;
1505 unsigned long flags;
1506
1507 res = lookup_resource(&iomem_resource, start);
1508 if (!res) {
1509 pr_err("%s: couldn't find memory resource for start 0x%lx\n",
1510 __func__, start);
1511 return -EINVAL;
1512 }
1513
1514 flags = res->flags;
1515
1516 if (!(flags & IORESOURCE_SYSRAM_DRIVER_MANAGED) ||
1517 strstr(resource_name, "System RAM (") != resource_name)
1518 return -EINVAL;
1519
1520 for (; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
1521 ms = __pfn_to_section(pfn);
1522 if (early_section(ms))
1523 return -EINVAL;
1524 }
1525
1526 return 0;
1527 }
1528
---
0-DAY CI Kernel Test Service, Intel Corporation
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