[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <202312161210.q8xdLxsl-lkp@intel.com>
Date: Sat, 16 Dec 2023 12:43:23 +0800
From: kernel test robot <lkp@...el.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Boqun Feng <boqun.feng@...il.com>,
Daniel Borkmann <daniel@...earbox.net>,
Eric Dumazet <edumazet@...gle.com>,
Frederic Weisbecker <frederic@...nel.org>,
Ingo Molnar <mingo@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Thomas Gleixner <tglx@...utronix.de>,
Waiman Long <longman@...hat.com>, Will Deacon <will@...nel.org>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [PATCH net-next 04/24] net: Use nested-BH locking for
napi_alloc_cache.
Hi Sebastian,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Sebastian-Andrzej-Siewior/locking-local_lock-Introduce-guard-definition-for-local_lock/20231216-011911
base: net-next/main
patch link: https://lore.kernel.org/r/20231215171020.687342-5-bigeasy%40linutronix.de
patch subject: [PATCH net-next 04/24] net: Use nested-BH locking for napi_alloc_cache.
config: x86_64-randconfig-121-20231216 (https://download.01.org/0day-ci/archive/20231216/202312161210.q8xdLxsl-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231216/202312161210.q8xdLxsl-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312161210.q8xdLxsl-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> net/core/skbuff.c:302:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct local_lock_t [usertype] *l @@ got struct local_lock_t [noderef] __percpu * @@
net/core/skbuff.c:302:38: sparse: expected struct local_lock_t [usertype] *l
net/core/skbuff.c:302:38: sparse: got struct local_lock_t [noderef] __percpu *
net/core/skbuff.c:331:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct local_lock_t [usertype] *l @@ got struct local_lock_t [noderef] __percpu * @@
net/core/skbuff.c:331:38: sparse: expected struct local_lock_t [usertype] *l
net/core/skbuff.c:331:38: sparse: got struct local_lock_t [noderef] __percpu *
net/core/skbuff.c:734:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct local_lock_t [usertype] *l @@ got struct local_lock_t [noderef] __percpu * @@
net/core/skbuff.c:734:17: sparse: expected struct local_lock_t [usertype] *l
net/core/skbuff.c:734:17: sparse: got struct local_lock_t [noderef] __percpu *
net/core/skbuff.c:806:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct local_lock_t [usertype] *l @@ got struct local_lock_t [noderef] __percpu * @@
net/core/skbuff.c:806:9: sparse: expected struct local_lock_t [usertype] *l
net/core/skbuff.c:806:9: sparse: got struct local_lock_t [noderef] __percpu *
net/core/skbuff.c:1317:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct local_lock_t [usertype] *l @@ got struct local_lock_t [noderef] __percpu * @@
net/core/skbuff.c:1317:38: sparse: expected struct local_lock_t [usertype] *l
net/core/skbuff.c:1317:38: sparse: got struct local_lock_t [noderef] __percpu *
net/core/skbuff.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/umh.h, include/linux/kmod.h, ...):
include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false
net/core/skbuff.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/umh.h, include/linux/kmod.h, ...):
>> include/linux/local_lock.h:71:1: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t [usertype] * @@
include/linux/local_lock.h:71:1: sparse: expected void const [noderef] __percpu *__vpp_verify
include/linux/local_lock.h:71:1: sparse: got struct local_lock_t [usertype] *
>> include/linux/local_lock.h:71:1: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t [usertype] * @@
include/linux/local_lock.h:71:1: sparse: expected void const [noderef] __percpu *__vpp_verify
include/linux/local_lock.h:71:1: sparse: got struct local_lock_t [usertype] *
>> include/linux/local_lock.h:71:1: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got struct local_lock_t [usertype] * @@
include/linux/local_lock.h:71:1: sparse: expected void const [noderef] __percpu *__vpp_verify
include/linux/local_lock.h:71:1: sparse: got struct local_lock_t [usertype] *
net/core/skbuff.c: note: in included file (through include/net/net_namespace.h, include/linux/inet.h):
include/linux/skbuff.h:2715:28: sparse: sparse: self-comparison always evaluates to false
net/core/skbuff.c: note: in included file (through include/linux/skbuff.h, include/net/net_namespace.h, include/linux/inet.h):
include/net/checksum.h:33:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@
include/net/checksum.h:33:39: sparse: expected restricted __wsum [usertype] sum
include/net/checksum.h:33:39: sparse: got unsigned int
vim +302 net/core/skbuff.c
296
297 void *__napi_alloc_frag_align(unsigned int fragsz, unsigned int align_mask)
298 {
299 struct napi_alloc_cache *nc = this_cpu_ptr(&napi_alloc_cache);
300
301 fragsz = SKB_DATA_ALIGN(fragsz);
> 302 guard(local_lock_nested_bh)(&napi_alloc_cache.bh_lock);
303
304 return page_frag_alloc_align(&nc->page, fragsz, GFP_ATOMIC, align_mask);
305 }
306 EXPORT_SYMBOL(__napi_alloc_frag_align);
307
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Powered by blists - more mailing lists