* Re: [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables
[not found] <20231113233301.1020992-5-lixiaoyan@google.com>
@ 2023-11-16 12:39 ` kernel test robot
2023-11-17 19:44 ` Coco Li
0 siblings, 1 reply; 3+ messages in thread
From: kernel test robot @ 2023-11-16 12:39 UTC (permalink / raw)
To: Coco Li, Jakub Kicinski, Eric Dumazet, Neal Cardwell,
Mubashir Adnan Qureshi, Paolo Abeni, Andrew Lunn, Jonathan Corbet,
David Ahern, Daniel Borkmann
Cc: llvm, oe-kbuild-all, netdev, Chao Wu, Wei Wang, Pradeep Nemavat,
Coco Li
Hi Coco,
kernel test robot noticed the following build errors:
[auto build test ERROR on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Coco-Li/Documentations-Analyze-heavily-used-Networking-related-structs/20231114-073648
base: net-next/main
patch link: https://lore.kernel.org/r/20231113233301.1020992-5-lixiaoyan%40google.com
patch subject: [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables
config: powerpc-mpc8313_rdb_defconfig (https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-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/202311162002.m26ObVLU-lkp@intel.com/
All errors (new ones prefixed by >>):
net/core/dev.c:4079:1: warning: unused function 'sch_handle_ingress' [-Wunused-function]
4079 | sch_handle_ingress(struct sk_buff *skb, struct packet_type **pt_prev, int *ret,
| ^
net/core/dev.c:4086:1: warning: unused function 'sch_handle_egress' [-Wunused-function]
4086 | sch_handle_egress(struct sk_buff *skb, int *ret, struct net_device *dev)
| ^
net/core/dev.c:5296:19: warning: unused function 'nf_ingress' [-Wunused-function]
5296 | static inline int nf_ingress(struct sk_buff *skb, struct packet_type **pt_prev,
| ^
>> net/core/dev.c:11547:2: error: call to '__compiletime_assert_971' declared with 'error' attribute: BUILD_BUG_ON failed: offsetof(struct net_device, __cacheline_group_end__net_device_read_txrx) - offsetofend(struct net_device, __cacheline_group_begin__net_device_read_txrx) > 24
11547 | CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
| ^
include/linux/cache.h:108:2: note: expanded from macro 'CACHELINE_ASSERT_GROUP_SIZE'
108 | BUILD_BUG_ON(offsetof(TYPE, __cacheline_group_end__##GROUP) - \
| ^
include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:423:2: note: expanded from macro '_compiletime_assert'
423 | __compiletime_assert(condition, msg, prefix, suffix)
| ^
include/linux/compiler_types.h:416:4: note: expanded from macro '__compiletime_assert'
416 | prefix ## suffix(); \
| ^
<scratch space>:11:1: note: expanded from here
11 | __compiletime_assert_971
| ^
3 warnings and 1 error generated.
vim +11547 net/core/dev.c
11515
11516 static void __init net_dev_struct_check(void)
11517 {
11518 /* TX read-mostly hotpath */
11519 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, priv_flags);
11520 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, netdev_ops);
11521 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, header_ops);
11522 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, _tx);
11523 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, real_num_tx_queues);
11524 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_max_size);
11525 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_ipv4_max_size);
11526 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_max_segs);
11527 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, num_tc);
11528 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, mtu);
11529 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, needed_headroom);
11530 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, tc_to_txq);
11531 #ifdef CONFIG_XPS
11532 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, xps_maps);
11533 #endif
11534 #ifdef CONFIG_NETFILTER_EGRESS
11535 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, nf_hooks_egress);
11536 #endif
11537 #ifdef CONFIG_NET_XGRESS
11538 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, tcx_egress);
11539 #endif
11540 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_tx, 152);
11541
11542 /* TXRX read-mostly hotpath */
11543 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, flags);
11544 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, hard_header_len);
11545 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, features);
11546 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, ip6_ptr);
11547 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
11548
11549 /* RX read-mostly hotpath */
11550 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ptype_specific);
11551 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ifindex);
11552 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, real_num_rx_queues);
11553 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, _rx);
11554 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_flush_timeout);
11555 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, napi_defer_hard_irqs);
11556 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_max_size);
11557 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_ipv4_max_size);
11558 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, rx_handler);
11559 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, rx_handler_data);
11560 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, nd_net);
11561 #ifdef CONFIG_NETPOLL
11562 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, npinfo);
11563 #endif
11564 #ifdef CONFIG_NET_XGRESS
11565 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, tcx_ingress);
11566 #endif
11567 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_rx, 96);
11568 }
11569
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables
2023-11-16 12:39 ` [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables kernel test robot
@ 2023-11-17 19:44 ` Coco Li
2023-11-20 19:41 ` Nathan Chancellor
0 siblings, 1 reply; 3+ messages in thread
From: Coco Li @ 2023-11-17 19:44 UTC (permalink / raw)
To: kernel test robot
Cc: Jakub Kicinski, Eric Dumazet, Neal Cardwell,
Mubashir Adnan Qureshi, Paolo Abeni, Andrew Lunn, Jonathan Corbet,
David Ahern, Daniel Borkmann, llvm, oe-kbuild-all, netdev,
Chao Wu, Wei Wang, Pradeep Nemavat
Spending some time setting up a clang17 compatible environment, will
update soon.
On Thu, Nov 16, 2023 at 4:40 AM kernel test robot <lkp@intel.com> wrote:
>
> Hi Coco,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on net-next/main]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Coco-Li/Documentations-Analyze-heavily-used-Networking-related-structs/20231114-073648
> base: net-next/main
> patch link: https://lore.kernel.org/r/20231113233301.1020992-5-lixiaoyan%40google.com
> patch subject: [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables
> config: powerpc-mpc8313_rdb_defconfig (https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-lkp@intel.com/config)
> compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-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/202311162002.m26ObVLU-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
> net/core/dev.c:4079:1: warning: unused function 'sch_handle_ingress' [-Wunused-function]
> 4079 | sch_handle_ingress(struct sk_buff *skb, struct packet_type **pt_prev, int *ret,
> | ^
> net/core/dev.c:4086:1: warning: unused function 'sch_handle_egress' [-Wunused-function]
> 4086 | sch_handle_egress(struct sk_buff *skb, int *ret, struct net_device *dev)
> | ^
> net/core/dev.c:5296:19: warning: unused function 'nf_ingress' [-Wunused-function]
> 5296 | static inline int nf_ingress(struct sk_buff *skb, struct packet_type **pt_prev,
> | ^
> >> net/core/dev.c:11547:2: error: call to '__compiletime_assert_971' declared with 'error' attribute: BUILD_BUG_ON failed: offsetof(struct net_device, __cacheline_group_end__net_device_read_txrx) - offsetofend(struct net_device, __cacheline_group_begin__net_device_read_txrx) > 24
> 11547 | CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
> | ^
> include/linux/cache.h:108:2: note: expanded from macro 'CACHELINE_ASSERT_GROUP_SIZE'
> 108 | BUILD_BUG_ON(offsetof(TYPE, __cacheline_group_end__##GROUP) - \
> | ^
> include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
> 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
> | ^
> include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
> 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> | ^
> note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
> include/linux/compiler_types.h:423:2: note: expanded from macro '_compiletime_assert'
> 423 | __compiletime_assert(condition, msg, prefix, suffix)
> | ^
> include/linux/compiler_types.h:416:4: note: expanded from macro '__compiletime_assert'
> 416 | prefix ## suffix(); \
> | ^
> <scratch space>:11:1: note: expanded from here
> 11 | __compiletime_assert_971
> | ^
> 3 warnings and 1 error generated.
>
>
> vim +11547 net/core/dev.c
>
> 11515
> 11516 static void __init net_dev_struct_check(void)
> 11517 {
> 11518 /* TX read-mostly hotpath */
> 11519 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, priv_flags);
> 11520 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, netdev_ops);
> 11521 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, header_ops);
> 11522 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, _tx);
> 11523 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, real_num_tx_queues);
> 11524 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_max_size);
> 11525 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_ipv4_max_size);
> 11526 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_max_segs);
> 11527 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, num_tc);
> 11528 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, mtu);
> 11529 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, needed_headroom);
> 11530 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, tc_to_txq);
> 11531 #ifdef CONFIG_XPS
> 11532 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, xps_maps);
> 11533 #endif
> 11534 #ifdef CONFIG_NETFILTER_EGRESS
> 11535 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, nf_hooks_egress);
> 11536 #endif
> 11537 #ifdef CONFIG_NET_XGRESS
> 11538 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, tcx_egress);
> 11539 #endif
> 11540 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_tx, 152);
> 11541
> 11542 /* TXRX read-mostly hotpath */
> 11543 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, flags);
> 11544 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, hard_header_len);
> 11545 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, features);
> 11546 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, ip6_ptr);
> 11547 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
> 11548
> 11549 /* RX read-mostly hotpath */
> 11550 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ptype_specific);
> 11551 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ifindex);
> 11552 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, real_num_rx_queues);
> 11553 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, _rx);
> 11554 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_flush_timeout);
> 11555 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, napi_defer_hard_irqs);
> 11556 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_max_size);
> 11557 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_ipv4_max_size);
> 11558 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, rx_handler);
> 11559 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, rx_handler_data);
> 11560 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, nd_net);
> 11561 #ifdef CONFIG_NETPOLL
> 11562 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, npinfo);
> 11563 #endif
> 11564 #ifdef CONFIG_NET_XGRESS
> 11565 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, tcx_ingress);
> 11566 #endif
> 11567 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_rx, 96);
> 11568 }
> 11569
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables
2023-11-17 19:44 ` Coco Li
@ 2023-11-20 19:41 ` Nathan Chancellor
0 siblings, 0 replies; 3+ messages in thread
From: Nathan Chancellor @ 2023-11-20 19:41 UTC (permalink / raw)
To: Coco Li
Cc: kernel test robot, Jakub Kicinski, Eric Dumazet, Neal Cardwell,
Mubashir Adnan Qureshi, Paolo Abeni, Andrew Lunn, Jonathan Corbet,
David Ahern, Daniel Borkmann, llvm, oe-kbuild-all, netdev,
Chao Wu, Wei Wang, Pradeep Nemavat
On Fri, Nov 17, 2023 at 11:44:41AM -0800, Coco Li wrote:
> Spending some time setting up a clang17 compatible environment, will
> update soon.
In case you have not seen it, I have prebuilt LLVM toolchains available
on kernel.org that should make working in your current environment
easier:
https://mirrors.edge.kernel.org/pub/tools/llvm/
For example, I just tested with:
$ mkdir -p $HOME/toolchains
$ curl -LSs https://mirrors.edge.kernel.org/pub/tools/llvm/files/llvm-17.0.5-"$(uname -m)".tar.xz | tar -C $HOME/toolchains -xJf -
$ curl -LSso .config https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-lkp@intel.com/config
$ make -skj"$(nproc)" ARCH=powerpc LLVM=$HOME/toolchains/llvm-17.0.5-"$(uname -m)"/bin/ olddefconfig net/core/dev.o
net/core/dev.c:11547:2: error: call to '__compiletime_assert_971' declared with 'error' attribute: BUILD_BUG_ON failed: offsetof(struct net_device, __cacheline_group_end__net_device_read_txrx) - offsetofend(struct net_device, __cacheline_group_begin__net_device_read_txrx) > 24
11547 | CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
| ^
include/linux/cache.h:108:2: note: expanded from macro 'CACHELINE_ASSERT_GROUP_SIZE'
108 | BUILD_BUG_ON(offsetof(TYPE, __cacheline_group_end__##GROUP) - \
| ^
include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:423:2: note: expanded from macro '_compiletime_assert'
423 | __compiletime_assert(condition, msg, prefix, suffix)
| ^
include/linux/compiler_types.h:416:4: note: expanded from macro '__compiletime_assert'
416 | prefix ## suffix(); \
| ^
<scratch space>:11:1: note: expanded from here
11 | __compiletime_assert_971
| ^
1 error generated.
See the Kbuild documentation if you have any other questions (or just
ask me directly):
https://kernel.org/doc/html/latest/kbuild/llvm.html
Cheers,
Nathan
> On Thu, Nov 16, 2023 at 4:40 AM kernel test robot <lkp@intel.com> wrote:
> >
> > Hi Coco,
> >
> > kernel test robot noticed the following build errors:
> >
> > [auto build test ERROR on net-next/main]
> >
> > url: https://github.com/intel-lab-lkp/linux/commits/Coco-Li/Documentations-Analyze-heavily-used-Networking-related-structs/20231114-073648
> > base: net-next/main
> > patch link: https://lore.kernel.org/r/20231113233301.1020992-5-lixiaoyan%40google.com
> > patch subject: [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables
> > config: powerpc-mpc8313_rdb_defconfig (https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-lkp@intel.com/config)
> > compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311162002.m26ObVLU-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/202311162002.m26ObVLU-lkp@intel.com/
> >
> > All errors (new ones prefixed by >>):
> >
> > net/core/dev.c:4079:1: warning: unused function 'sch_handle_ingress' [-Wunused-function]
> > 4079 | sch_handle_ingress(struct sk_buff *skb, struct packet_type **pt_prev, int *ret,
> > | ^
> > net/core/dev.c:4086:1: warning: unused function 'sch_handle_egress' [-Wunused-function]
> > 4086 | sch_handle_egress(struct sk_buff *skb, int *ret, struct net_device *dev)
> > | ^
> > net/core/dev.c:5296:19: warning: unused function 'nf_ingress' [-Wunused-function]
> > 5296 | static inline int nf_ingress(struct sk_buff *skb, struct packet_type **pt_prev,
> > | ^
> > >> net/core/dev.c:11547:2: error: call to '__compiletime_assert_971' declared with 'error' attribute: BUILD_BUG_ON failed: offsetof(struct net_device, __cacheline_group_end__net_device_read_txrx) - offsetofend(struct net_device, __cacheline_group_begin__net_device_read_txrx) > 24
> > 11547 | CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
> > | ^
> > include/linux/cache.h:108:2: note: expanded from macro 'CACHELINE_ASSERT_GROUP_SIZE'
> > 108 | BUILD_BUG_ON(offsetof(TYPE, __cacheline_group_end__##GROUP) - \
> > | ^
> > include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
> > 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
> > | ^
> > include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
> > 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> > | ^
> > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
> > include/linux/compiler_types.h:423:2: note: expanded from macro '_compiletime_assert'
> > 423 | __compiletime_assert(condition, msg, prefix, suffix)
> > | ^
> > include/linux/compiler_types.h:416:4: note: expanded from macro '__compiletime_assert'
> > 416 | prefix ## suffix(); \
> > | ^
> > <scratch space>:11:1: note: expanded from here
> > 11 | __compiletime_assert_971
> > | ^
> > 3 warnings and 1 error generated.
> >
> >
> > vim +11547 net/core/dev.c
> >
> > 11515
> > 11516 static void __init net_dev_struct_check(void)
> > 11517 {
> > 11518 /* TX read-mostly hotpath */
> > 11519 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, priv_flags);
> > 11520 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, netdev_ops);
> > 11521 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, header_ops);
> > 11522 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, _tx);
> > 11523 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, real_num_tx_queues);
> > 11524 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_max_size);
> > 11525 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_ipv4_max_size);
> > 11526 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, gso_max_segs);
> > 11527 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, num_tc);
> > 11528 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, mtu);
> > 11529 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, needed_headroom);
> > 11530 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, tc_to_txq);
> > 11531 #ifdef CONFIG_XPS
> > 11532 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, xps_maps);
> > 11533 #endif
> > 11534 #ifdef CONFIG_NETFILTER_EGRESS
> > 11535 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, nf_hooks_egress);
> > 11536 #endif
> > 11537 #ifdef CONFIG_NET_XGRESS
> > 11538 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_tx, tcx_egress);
> > 11539 #endif
> > 11540 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_tx, 152);
> > 11541
> > 11542 /* TXRX read-mostly hotpath */
> > 11543 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, flags);
> > 11544 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, hard_header_len);
> > 11545 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, features);
> > 11546 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_txrx, ip6_ptr);
> > 11547 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_txrx, 24);
> > 11548
> > 11549 /* RX read-mostly hotpath */
> > 11550 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ptype_specific);
> > 11551 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, ifindex);
> > 11552 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, real_num_rx_queues);
> > 11553 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, _rx);
> > 11554 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_flush_timeout);
> > 11555 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, napi_defer_hard_irqs);
> > 11556 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_max_size);
> > 11557 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, gro_ipv4_max_size);
> > 11558 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, rx_handler);
> > 11559 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, rx_handler_data);
> > 11560 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, nd_net);
> > 11561 #ifdef CONFIG_NETPOLL
> > 11562 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, npinfo);
> > 11563 #endif
> > 11564 #ifdef CONFIG_NET_XGRESS
> > 11565 CACHELINE_ASSERT_GROUP_MEMBER(struct net_device, net_device_read_rx, tcx_ingress);
> > 11566 #endif
> > 11567 CACHELINE_ASSERT_GROUP_SIZE(struct net_device, net_device_read_rx, 96);
> > 11568 }
> > 11569
> >
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-11-20 19:41 UTC | newest]
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[not found] <20231113233301.1020992-5-lixiaoyan@google.com>
2023-11-16 12:39 ` [PATCH v7 net-next 4/5] net-device: reorganize net_device fast path variables kernel test robot
2023-11-17 19:44 ` Coco Li
2023-11-20 19:41 ` Nathan Chancellor
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