* net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
@ 2022-03-28 6:28 kernel test robot
2022-03-28 17:17 ` Jakub Kicinski
0 siblings, 1 reply; 7+ messages in thread
From: kernel test robot @ 2022-03-28 6:28 UTC (permalink / raw)
To: Eric Dumazet; +Cc: kbuild-all, linux-kernel, Jakub Kicinski, Brian Vazquez
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ae085d7f9365de7da27ab5c0d16b12d51ea7fca9
commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
date: 2 weeks ago
config: riscv-randconfig-s032-20220328 (https://download.01.org/0day-ci/archive/20220328/202203281436.hsNgYWWu-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=625788b5844511cf4c30cffa7fa0bc3a69cebc82
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 625788b5844511cf4c30cffa7fa0bc3a69cebc82
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash net/core/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3254:23: sparse: got unsigned int
net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
>> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
vim +/__percpu +10290 net/core/dev.c
10282
10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
10284 {
10285 struct net_device_core_stats __percpu *p;
10286
10287 p = alloc_percpu_gfp(struct net_device_core_stats,
10288 GFP_ATOMIC | __GFP_NOWARN);
10289
10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
10291 free_percpu(p);
10292
10293 /* This READ_ONCE() pairs with the cmpxchg() above */
10294 p = READ_ONCE(dev->core_stats);
10295 if (!p)
10296 return NULL;
10297
10298 return this_cpu_ptr(p);
10299 }
10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
10301
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
2022-03-28 6:28 net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression kernel test robot
2022-03-28 17:17 ` Jakub Kicinski
@ 2022-03-28 17:17 ` Jakub Kicinski
0 siblings, 0 replies; 7+ messages in thread
From: Jakub Kicinski @ 2022-03-28 17:17 UTC (permalink / raw)
To: kernel test robot
Cc: Eric Dumazet, kbuild-all, linux-kernel, Brian Vazquez, linux-riscv
CC: riscv, is there something special about cmpxchg() on that arch?
We don't see it on x86, and I don't see anything special in the code
for riscv, at least on 5.17.
On Mon, 28 Mar 2022 14:28:34 +0800 kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: ae085d7f9365de7da27ab5c0d16b12d51ea7fca9
> commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
> date: 2 weeks ago
> config: riscv-randconfig-s032-20220328 (https://download.01.org/0day-ci/archive/20220328/202203281436.hsNgYWWu-lkp@intel.com/config)
> compiler: riscv64-linux-gcc (GCC) 11.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # apt-get install sparse
> # sparse version: v0.6.4-dirty
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=625788b5844511cf4c30cffa7fa0bc3a69cebc82
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 625788b5844511cf4c30cffa7fa0bc3a69cebc82
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash net/core/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
> net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
> net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
> net/core/dev.c:3254:23: sparse: got unsigned int
> net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
> >> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
> net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
> net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
>
> vim +/__percpu +10290 net/core/dev.c
>
> 10282
> 10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
> 10284 {
> 10285 struct net_device_core_stats __percpu *p;
> 10286
> 10287 p = alloc_percpu_gfp(struct net_device_core_stats,
> 10288 GFP_ATOMIC | __GFP_NOWARN);
> 10289
> 10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
> 10291 free_percpu(p);
> 10292
> 10293 /* This READ_ONCE() pairs with the cmpxchg() above */
> 10294 p = READ_ONCE(dev->core_stats);
> 10295 if (!p)
> 10296 return NULL;
> 10297
> 10298 return this_cpu_ptr(p);
> 10299 }
> 10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
> 10301
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
@ 2022-03-28 17:17 ` Jakub Kicinski
0 siblings, 0 replies; 7+ messages in thread
From: Jakub Kicinski @ 2022-03-28 17:17 UTC (permalink / raw)
To: kernel test robot
Cc: Eric Dumazet, kbuild-all, linux-kernel, Brian Vazquez, linux-riscv
CC: riscv, is there something special about cmpxchg() on that arch?
We don't see it on x86, and I don't see anything special in the code
for riscv, at least on 5.17.
On Mon, 28 Mar 2022 14:28:34 +0800 kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: ae085d7f9365de7da27ab5c0d16b12d51ea7fca9
> commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
> date: 2 weeks ago
> config: riscv-randconfig-s032-20220328 (https://download.01.org/0day-ci/archive/20220328/202203281436.hsNgYWWu-lkp@intel.com/config)
> compiler: riscv64-linux-gcc (GCC) 11.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # apt-get install sparse
> # sparse version: v0.6.4-dirty
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=625788b5844511cf4c30cffa7fa0bc3a69cebc82
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 625788b5844511cf4c30cffa7fa0bc3a69cebc82
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash net/core/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
> net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
> net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
> net/core/dev.c:3254:23: sparse: got unsigned int
> net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
> >> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
> net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
> net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
>
> vim +/__percpu +10290 net/core/dev.c
>
> 10282
> 10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
> 10284 {
> 10285 struct net_device_core_stats __percpu *p;
> 10286
> 10287 p = alloc_percpu_gfp(struct net_device_core_stats,
> 10288 GFP_ATOMIC | __GFP_NOWARN);
> 10289
> 10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
> 10291 free_percpu(p);
> 10292
> 10293 /* This READ_ONCE() pairs with the cmpxchg() above */
> 10294 p = READ_ONCE(dev->core_stats);
> 10295 if (!p)
> 10296 return NULL;
> 10297
> 10298 return this_cpu_ptr(p);
> 10299 }
> 10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
> 10301
>
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
@ 2022-03-28 17:17 ` Jakub Kicinski
0 siblings, 0 replies; 7+ messages in thread
From: Jakub Kicinski @ 2022-03-28 17:17 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 3134 bytes --]
CC: riscv, is there something special about cmpxchg() on that arch?
We don't see it on x86, and I don't see anything special in the code
for riscv, at least on 5.17.
On Mon, 28 Mar 2022 14:28:34 +0800 kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: ae085d7f9365de7da27ab5c0d16b12d51ea7fca9
> commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
> date: 2 weeks ago
> config: riscv-randconfig-s032-20220328 (https://download.01.org/0day-ci/archive/20220328/202203281436.hsNgYWWu-lkp(a)intel.com/config)
> compiler: riscv64-linux-gcc (GCC) 11.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # apt-get install sparse
> # sparse version: v0.6.4-dirty
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=625788b5844511cf4c30cffa7fa0bc3a69cebc82
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 625788b5844511cf4c30cffa7fa0bc3a69cebc82
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash net/core/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
> net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
> net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
> net/core/dev.c:3254:23: sparse: got unsigned int
> net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
> >> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
> net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
> net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
>
> vim +/__percpu +10290 net/core/dev.c
>
> 10282
> 10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
> 10284 {
> 10285 struct net_device_core_stats __percpu *p;
> 10286
> 10287 p = alloc_percpu_gfp(struct net_device_core_stats,
> 10288 GFP_ATOMIC | __GFP_NOWARN);
> 10289
> 10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
> 10291 free_percpu(p);
> 10292
> 10293 /* This READ_ONCE() pairs with the cmpxchg() above */
> 10294 p = READ_ONCE(dev->core_stats);
> 10295 if (!p)
> 10296 return NULL;
> 10297
> 10298 return this_cpu_ptr(p);
> 10299 }
> 10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
> 10301
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
@ 2023-12-19 13:29 kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2023-12-19 13:29 UTC (permalink / raw)
To: Eric Dumazet; +Cc: oe-kbuild-all, linux-kernel, Jakub Kicinski, Brian Vazquez
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 2cf4f94d8e8646803f8fb0facf134b0cd7fb691a
commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
date: 1 year, 9 months ago
config: riscv-buildonly-randconfig-r006-20230429 (https://download.01.org/0day-ci/archive/20231219/202312192120.8ogDR8Em-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20231219/202312192120.8ogDR8Em-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312192120.8ogDR8Em-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3254:23: sparse: got unsigned int
net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
>> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
vim +/__percpu +10290 net/core/dev.c
10282
10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
10284 {
10285 struct net_device_core_stats __percpu *p;
10286
10287 p = alloc_percpu_gfp(struct net_device_core_stats,
10288 GFP_ATOMIC | __GFP_NOWARN);
10289
10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
10291 free_percpu(p);
10292
10293 /* This READ_ONCE() pairs with the cmpxchg() above */
10294 p = READ_ONCE(dev->core_stats);
10295 if (!p)
10296 return NULL;
10297
10298 return this_cpu_ptr(p);
10299 }
10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
10301
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 7+ messages in thread
* net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
@ 2022-07-13 15:48 kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2022-07-13 15:48 UTC (permalink / raw)
To: Eric Dumazet; +Cc: kbuild-all, linux-kernel, Jakub Kicinski, Brian Vazquez
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b047602d579b4fb028128a525f056bbdc890e7f0
commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
date: 4 months ago
config: riscv-randconfig-s032-20220713 (https://download.01.org/0day-ci/archive/20220713/202207132315.QFxcZZNI-lkp@intel.com/config)
compiler: riscv32-linux-gcc (GCC) 11.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=625788b5844511cf4c30cffa7fa0bc3a69cebc82
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 625788b5844511cf4c30cffa7fa0bc3a69cebc82
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash net/core/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3254:23: sparse: got unsigned int
net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
>> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
vim +/__percpu +10290 net/core/dev.c
10282
10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
10284 {
10285 struct net_device_core_stats __percpu *p;
10286
10287 p = alloc_percpu_gfp(struct net_device_core_stats,
10288 GFP_ATOMIC | __GFP_NOWARN);
10289
10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
10291 free_percpu(p);
10292
10293 /* This READ_ONCE() pairs with the cmpxchg() above */
10294 p = READ_ONCE(dev->core_stats);
10295 if (!p)
10296 return NULL;
10297
10298 return this_cpu_ptr(p);
10299 }
10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
10301
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 7+ messages in thread
* net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
@ 2022-06-05 0:46 kernel test robot
0 siblings, 0 replies; 7+ messages in thread
From: kernel test robot @ 2022-06-05 0:46 UTC (permalink / raw)
To: Eric Dumazet; +Cc: kbuild-all, linux-kernel, Jakub Kicinski, Brian Vazquez
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d0e60d46bc03252b8d4ffaaaa0b371970ac16cda
commit: 625788b5844511cf4c30cffa7fa0bc3a69cebc82 net: add per-cpu storage and net->core_stats
date: 3 months ago
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20220605/202206050845.IJUsAUy8-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-18-g56afb504-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=625788b5844511cf4c30cffa7fa0bc3a69cebc82
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 625788b5844511cf4c30cffa7fa0bc3a69cebc82
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash net/core/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
net/core/dev.c:3254:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3254:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3254:23: sparse: got unsigned int
net/core/dev.c:3254:23: sparse: sparse: cast from restricted __wsum
>> net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression
net/core/dev.c:3759:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
net/core/dev.c:4961:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
vim +/__percpu +10290 net/core/dev.c
10282
10283 struct net_device_core_stats *netdev_core_stats_alloc(struct net_device *dev)
10284 {
10285 struct net_device_core_stats __percpu *p;
10286
10287 p = alloc_percpu_gfp(struct net_device_core_stats,
10288 GFP_ATOMIC | __GFP_NOWARN);
10289
10290 if (p && cmpxchg(&dev->core_stats, NULL, p))
10291 free_percpu(p);
10292
10293 /* This READ_ONCE() pairs with the cmpxchg() above */
10294 p = READ_ONCE(dev->core_stats);
10295 if (!p)
10296 return NULL;
10297
10298 return this_cpu_ptr(p);
10299 }
10300 EXPORT_SYMBOL(netdev_core_stats_alloc);
10301
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 7+ messages in thread
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2022-03-28 6:28 net/core/dev.c:10290:18: sparse: sparse: cast removes address space '__percpu' of expression kernel test robot
2022-03-28 17:17 ` Jakub Kicinski
2022-03-28 17:17 ` Jakub Kicinski
2022-03-28 17:17 ` Jakub Kicinski
2022-06-05 0:46 kernel test robot
2022-07-13 15:48 kernel test robot
2023-12-19 13:29 kernel test robot
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