* [PATCH net] ipv6: per-netns exclusive flowlabel checks
@ 2022-02-14 20:04 Willem de Bruijn
2022-02-14 23:48 ` kernel test robot
2022-02-15 0:18 ` kernel test robot
0 siblings, 2 replies; 7+ messages in thread
From: Willem de Bruijn @ 2022-02-14 20:04 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, Willem de Bruijn, Congyu Liu
From: Willem de Bruijn <willemb@google.com>
Ipv6 flowlabels historically require a reservation before use.
Optionally in exclusive mode (e.g., user-private).
Commit 59c820b2317f ("ipv6: elide flowlabel check if no exclusive
leases exist") introduced a fastpath that avoids this check when no
exclusive leases exist in the system, and thus any flowlabel use
will be granted.
That allows skipping the control operation to reserve a flowlabel
entirely. Though with a warning if the fast path fails:
This is an optimization. Robust applications still have to revert to
requesting leases if the fast path fails due to an exclusive lease.
Still, this is subtle. Better isolate network namespaces from each
other. Flowlabels are per-netns. Also record per-netns whether
exclusive leases are in use. Then behavior does not change based on
activity in other netns.
Fixes: 59c820b2317f ("ipv6: elide flowlabel check if no exclusive leases exist")
Link: https://lore.kernel.org/netdev/MWHPR2201MB1072BCCCFCE779E4094837ACD0329@MWHPR2201MB1072.namprd22.prod.outlook.com/
Reported-by: Congyu Liu <liu3101@purdue.edu>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Tested-by: Congyu Liu <liu3101@purdue.edu>
---
include/net/ipv6.h | 3 ++-
include/net/netns/ipv6.h | 3 ++-
net/ipv6/ip6_flowlabel.c | 4 +++-
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 3afcb128e064..49b885784298 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -399,7 +399,8 @@ extern struct static_key_false_deferred ipv6_flowlabel_exclusive;
static inline struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk,
__be32 label)
{
- if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key))
+ if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key) &&
+ READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
return __fl6_sock_lookup(sk, label) ? : ERR_PTR(-ENOENT);
return NULL;
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index a4b550380316..6bd7e5a85ce7 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -77,9 +77,10 @@ struct netns_ipv6 {
spinlock_t fib6_gc_lock;
unsigned int ip6_rt_gc_expire;
unsigned long ip6_rt_last_gc;
+ unsigned char flowlabel_has_excl;
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
- unsigned int fib6_rules_require_fldissect;
bool fib6_has_custom_rules;
+ unsigned int fib6_rules_require_fldissect;
#ifdef CONFIG_IPV6_SUBTREES
unsigned int fib6_routes_require_src;
#endif
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index aa673a6a7e43..ceb85c67ce39 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -450,8 +450,10 @@ fl_create(struct net *net, struct sock *sk, struct in6_flowlabel_req *freq,
err = -EINVAL;
goto done;
}
- if (fl_shared_exclusive(fl) || fl->opt)
+ if (fl_shared_exclusive(fl) || fl->opt) {
+ WRITE_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl, 1);
static_branch_deferred_inc(&ipv6_flowlabel_exclusive);
+ }
return fl;
done:
--
2.35.1.265.g69c8d7142f-goog
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
2022-02-14 20:04 [PATCH net] ipv6: per-netns exclusive flowlabel checks Willem de Bruijn
@ 2022-02-14 23:48 ` kernel test robot
2022-02-15 0:18 ` kernel test robot
1 sibling, 0 replies; 7+ messages in thread
From: kernel test robot @ 2022-02-14 23:48 UTC (permalink / raw)
To: Willem de Bruijn, netdev
Cc: llvm, kbuild-all, davem, kuba, Willem de Bruijn, Congyu Liu
Hi Willem,
Thank you for the patch! Yet something to improve:
[auto build test ERROR 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: arm-netwinder_defconfig (https://download.01.org/0day-ci/archive/20220215/202202150740.uPYefwp7-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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# 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=arm SHELL=/bin/bash net/mptcp/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from net/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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:313:10: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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:313:39: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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:314:10: 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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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) &&
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
8 errors generated.
--
In file included from net/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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:313:10: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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:313:39: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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:314:10: 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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:552:21: warning: parameter 'remaining' set but not used [-Wunused-but-set-parameter]
unsigned int remaining,
^
1 warning and 8 errors generated.
vim +403 include/net/ipv6.h
397
398 extern struct static_key_false_deferred ipv6_flowlabel_exclusive;
399 static inline struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk,
400 __be32 label)
401 {
> 402 if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key) &&
> 403 READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
404 return __fl6_sock_lookup(sk, label) ? : ERR_PTR(-ENOENT);
405
406 return NULL;
407 }
408
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
@ 2022-02-14 23:48 ` kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2022-02-14 23:48 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 23524 bytes --]
Hi Willem,
Thank you for the patch! Yet something to improve:
[auto build test ERROR 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: arm-netwinder_defconfig (https://download.01.org/0day-ci/archive/20220215/202202150740.uPYefwp7-lkp(a)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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# 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=arm SHELL=/bin/bash net/mptcp/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from net/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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:313:10: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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:313:39: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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:314:10: 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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/protocol.c:16:
In file included from include/net/inet_hashtables.h:27:
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) &&
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
8 errors generated.
--
In file included from net/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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:313:10: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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:313:39: note: expanded from macro '__native_word'
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
^
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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:314:10: 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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:11:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:27:
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/mptcp/options.c:552:21: warning: parameter 'remaining' set but not used [-Wunused-but-set-parameter]
unsigned int remaining,
^
1 warning and 8 errors generated.
vim +403 include/net/ipv6.h
397
398 extern struct static_key_false_deferred ipv6_flowlabel_exclusive;
399 static inline struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk,
400 __be32 label)
401 {
> 402 if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key) &&
> 403 READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
404 return __fl6_sock_lookup(sk, label) ? : ERR_PTR(-ENOENT);
405
406 return NULL;
407 }
408
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
2022-02-14 20:04 [PATCH net] ipv6: per-netns exclusive flowlabel checks Willem de Bruijn
@ 2022-02-15 0:18 ` kernel test robot
2022-02-15 0:18 ` kernel test robot
1 sibling, 0 replies; 7+ messages in thread
From: kernel test robot @ 2022-02-15 0:18 UTC (permalink / raw)
To: Willem de Bruijn, netdev
Cc: llvm, kbuild-all, davem, kuba, Willem de Bruijn, Congyu Liu
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@intel.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
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
@ 2022-02-15 0:18 ` kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2022-02-15 0:18 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 8947 bytes --]
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(a)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@intel.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(a)lists.01.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
2022-02-15 0:18 ` kernel test robot
@ 2022-02-15 4:15 ` Willem de Bruijn
-1 siblings, 0 replies; 7+ messages in thread
From: Willem de Bruijn @ 2022-02-15 4:15 UTC (permalink / raw)
To: kernel test robot
Cc: Willem de Bruijn, netdev, llvm, kbuild-all, davem, kuba, Congyu Liu
On Mon, Feb 14, 2022 at 7:19 PM kernel test robot <lkp@intel.com> wrote:
>
> Hi Willem,
>
> Thank you for the patch! Perhaps something to improve:
> 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))
I'll wrap the whole function in IS_ENABLED(CONFIG_IPV6).
fl6_sock_lookup is only called from code in .c files that are
conditional on CONFIG_IPV6.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net] ipv6: per-netns exclusive flowlabel checks
@ 2022-02-15 4:15 ` Willem de Bruijn
0 siblings, 0 replies; 7+ messages in thread
From: Willem de Bruijn @ 2022-02-15 4:15 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 660 bytes --]
On Mon, Feb 14, 2022 at 7:19 PM kernel test robot <lkp@intel.com> wrote:
>
> Hi Willem,
>
> Thank you for the patch! Perhaps something to improve:
> 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))
I'll wrap the whole function in IS_ENABLED(CONFIG_IPV6).
fl6_sock_lookup is only called from code in .c files that are
conditional on CONFIG_IPV6.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-02-15 4:16 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-02-14 20:04 [PATCH net] ipv6: per-netns exclusive flowlabel checks Willem de Bruijn
2022-02-14 23:48 ` kernel test robot
2022-02-14 23:48 ` kernel test robot
2022-02-15 0:18 ` kernel test robot
2022-02-15 0:18 ` kernel test robot
2022-02-15 4:15 ` Willem de Bruijn
2022-02-15 4:15 ` Willem de Bruijn
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.