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Date: Tue, 15 Feb 2022 08:18:45 +0800
From: kernel test robot <lkp@...el.com>
To: Willem de Bruijn <willemdebruijn.kernel@...il.com>,
netdev@...r.kernel.org
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org, davem@...emloft.net,
kuba@...nel.org, Willem de Bruijn <willemb@...gle.com>,
Congyu Liu <liu3101@...due.edu>
Subject: Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
Hi Willem,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net/master]
url: https://github.com/0day-ci/linux/commits/Willem-de-Bruijn/ipv6-per-netns-exclusive-flowlabel-checks/20220215-042330
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git 86006f996346e8a5a1ea80637ec949ceeea4ecbc
config: hexagon-randconfig-r036-20220214 (https://download.01.org/0day-ci/archive/20220215/202202150837.bGbeRjWx-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ea071884b0cc7210b3cc5fe858f0e892a779a23b)
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/0day-ci/linux/commit/5d3936d3544b4cdd6d63c896d158d4975a4822c3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Willem-de-Bruijn/ipv6-per-netns-exclusive-flowlabel-checks/20220215-042330
git checkout 5d3936d3544b4cdd6d63c896d158d4975a4822c3
# 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=hexagon SHELL=/bin/bash net/ceph/ net/sched/
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 >>):
compiletime_assert_rwonce_type(x); \
^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
^
include/linux/compiler_types.h:314:10: note: expanded from macro '__native_word'
sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
^
include/linux/compiler_types.h:346:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~
include/linux/compiler_types.h:334:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^~~~~~~~~
include/linux/compiler_types.h:326:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from net/sched/cls_flow.c:24:
In file included from include/net/ip.h:30:
In file included from include/net/route.h:24:
In file included from include/net/inetpeer.h:16:
include/net/ipv6.h:403:30: error: no member named 'ipv6' in 'struct net'
READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
~~~~~~~~~~~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
compiletime_assert_rwonce_type(x); \
^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
^
include/linux/compiler_types.h:314:38: note: expanded from macro '__native_word'
sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
^
include/linux/compiler_types.h:346:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~
include/linux/compiler_types.h:334:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^~~~~~~~~
include/linux/compiler_types.h:326:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from net/sched/cls_flow.c:24:
In file included from include/net/ip.h:30:
In file included from include/net/route.h:24:
In file included from include/net/inetpeer.h:16:
include/net/ipv6.h:403:30: error: no member named 'ipv6' in 'struct net'
READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
~~~~~~~~~~~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
compiletime_assert_rwonce_type(x); \
^
include/asm-generic/rwonce.h:36:48: note: expanded from macro 'compiletime_assert_rwonce_type'
compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
^
include/linux/compiler_types.h:346:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~
include/linux/compiler_types.h:334:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^~~~~~~~~
include/linux/compiler_types.h:326:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
In file included from net/sched/cls_flow.c:24:
In file included from include/net/ip.h:30:
In file included from include/net/route.h:24:
In file included from include/net/inetpeer.h:16:
include/net/ipv6.h:403:30: error: no member named 'ipv6' in 'struct net'
READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
~~~~~~~~~~~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
__READ_ONCE(x); \
^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
#define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
^
include/linux/compiler_types.h:302:13: note: expanded from macro '__unqual_scalar_typeof'
_Generic((x), \
^
In file included from net/sched/cls_flow.c:24:
In file included from include/net/ip.h:30:
In file included from include/net/route.h:24:
In file included from include/net/inetpeer.h:16:
include/net/ipv6.h:403:30: error: no member named 'ipv6' in 'struct net'
READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
~~~~~~~~~~~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
__READ_ONCE(x); \
^
include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE'
#define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
^
In file included from net/sched/cls_flow.c:24:
In file included from include/net/ip.h:30:
In file included from include/net/route.h:24:
In file included from include/net/inetpeer.h:16:
include/net/ipv6.h:402:60: error: invalid operands to binary expression ('long' and 'void')
if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key) &&
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
>> net/sched/cls_flow.c:63:52: warning: shift count >= width of type [-Wshift-count-overflow]
return (a & 0xFFFFFFFF) ^ (BITS_PER_LONG > 32 ? a >> 32 : 0);
^ ~~
1 warning and 8 errors generated.
vim +63 net/sched/cls_flow.c
e5dfb815181fcb Patrick McHardy 2008-01-31 58
e5dfb815181fcb Patrick McHardy 2008-01-31 59 static inline u32 addr_fold(void *addr)
e5dfb815181fcb Patrick McHardy 2008-01-31 60 {
e5dfb815181fcb Patrick McHardy 2008-01-31 61 unsigned long a = (unsigned long)addr;
e5dfb815181fcb Patrick McHardy 2008-01-31 62
e5dfb815181fcb Patrick McHardy 2008-01-31 @63 return (a & 0xFFFFFFFF) ^ (BITS_PER_LONG > 32 ? a >> 32 : 0);
e5dfb815181fcb Patrick McHardy 2008-01-31 64 }
e5dfb815181fcb Patrick McHardy 2008-01-31 65
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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