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Date: Sun, 18 Dec 2022 05:50:30 +0800
From: kernel test robot <lkp@...el.com>
To: Eric Van Hensbergen <evanhensbergen@...oud.com>,
v9fs-developer@...ts.sourceforge.net, asmadeus@...ewreck.org,
rminnich@...il.com, lucho@...kov.net
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux_oss@...debyte.com,
Eric Van Hensbergen <evanhensbergen@...oud.com>
Subject: Re: [PATCH 4/6] Consolidate file operations and add readahead and
writeback
Hi Eric,
I love your patch! Perhaps something to improve:
[auto build test WARNING on v6.1]
[also build test WARNING on linus/master next-20221216]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Eric-Van-Hensbergen/Adjust-maximum-MSIZE-to-account-for-p9-header/20221218-035253
patch link: https://lore.kernel.org/r/20221217185210.1431478-5-evanhensbergen%40icloud.com
patch subject: [PATCH 4/6] Consolidate file operations and add readahead and writeback
config: hexagon-randconfig-r041-20221218
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 98b13979fb05f3ed288a900deb843e7b27589e58)
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/intel-lab-lkp/linux/commit/3cb1fb650908432b5df0279ca61f483e09ce2478
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Eric-Van-Hensbergen/Adjust-maximum-MSIZE-to-account-for-p9-header/20221218-035253
git checkout 3cb1fb650908432b5df0279ca61f483e09ce2478
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash fs/9p/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from fs/9p/vfs_file.c:16:
In file included from include/linux/inet.h:42:
In file included from include/net/net_namespace.h:43:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from fs/9p/vfs_file.c:16:
In file included from include/linux/inet.h:42:
In file included from include/net/net_namespace.h:43:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from fs/9p/vfs_file.c:16:
In file included from include/linux/inet.h:42:
In file included from include/net/net_namespace.h:43:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
>> fs/9p/vfs_file.c:591:42: warning: unused variable 'v9fs_file_vm_ops' [-Wunused-const-variable]
static const struct vm_operations_struct v9fs_file_vm_ops = {
^
7 warnings generated.
vim +/v9fs_file_vm_ops +591 fs/9p/vfs_file.c
fb89b45cdfdc8b Dominique Martinet 2014-01-10 589
fb89b45cdfdc8b Dominique Martinet 2014-01-10 590
7263cebed9fada Aneesh Kumar K.V 2011-02-28 @591 static const struct vm_operations_struct v9fs_file_vm_ops = {
7263cebed9fada Aneesh Kumar K.V 2011-02-28 592 .fault = filemap_fault,
f1820361f83d55 Kirill A. Shutemov 2014-04-07 593 .map_pages = filemap_map_pages,
7263cebed9fada Aneesh Kumar K.V 2011-02-28 594 .page_mkwrite = v9fs_vm_page_mkwrite,
7263cebed9fada Aneesh Kumar K.V 2011-02-28 595 };
7263cebed9fada Aneesh Kumar K.V 2011-02-28 596
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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