* Re: [RFC PATCH] rhashtable: Bounce deferred worker kick through irq_work when insecure_elasticity is set
[not found] <67fedbf2-914b-44f7-9422-1fe97d833705@kernel.org>
@ 2026-04-27 23:12 ` kernel test robot
2026-05-07 8:56 ` kernel test robot
1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2026-04-27 23:12 UTC (permalink / raw)
To: Tejun Heo; +Cc: llvm, oe-kbuild-all
Hi Tejun,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on v7.0]
[also build test ERROR on linus/master]
[cannot apply to tj-sched-ext/for-7.1-fixes next-20260427]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Tejun-Heo/rhashtable-Bounce-deferred-worker-kick-through-irq_work-when-insecure_elasticity-is-set/20260426-103416
base: v7.0
patch link: https://lore.kernel.org/r/67fedbf2-914b-44f7-9422-1fe97d833705%40kernel.org
patch subject: [RFC PATCH] rhashtable: Bounce deferred worker kick through irq_work when insecure_elasticity is set
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20260428/202604280709.2xKuz7sZ-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260428/202604280709.2xKuz7sZ-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/202604280709.2xKuz7sZ-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from lib/rhashtable.c:25:
>> include/linux/rhashtable.h:768:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
768 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
>> lib/rhashtable.c:1095:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
1095 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
lib/rhashtable.c:1162:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
1162 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
3 errors generated.
--
In file included from lib/test_rhashtable.c:20:
>> include/linux/rhashtable.h:768:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
768 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
1 error generated.
--
In file included from drivers/net/ethernet/intel/igc/igc_main.c:12:
In file included from include/linux/bpf_trace.h:5:
In file included from include/trace/events/xdp.h:288:
In file included from include/net/xdp_priv.h:5:
>> include/linux/rhashtable.h:768:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
768 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
drivers/net/ethernet/intel/igc/igc_main.c:1264:14: warning: division by zero is undefined [-Wdivision-by-zero]
1264 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_VLAN,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1265 | IGC_ADVTXD_DCMD_VLE);
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1268:14: warning: division by zero is undefined [-Wdivision-by-zero]
1268 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSO,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1269 | (IGC_ADVTXD_DCMD_TSE));
| ~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1274:14: warning: division by zero is undefined [-Wdivision-by-zero]
1274 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1275 | (IGC_ADVTXD_MAC_TSTAMP));
| ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1277:14: warning: division by zero is undefined [-Wdivision-by-zero]
1277 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP_1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1278 | (IGC_ADVTXD_TSTAMP_REG_1));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1280:14: warning: division by zero is undefined [-Wdivision-by-zero]
1280 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP_2,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1281 | (IGC_ADVTXD_TSTAMP_REG_2));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1283:14: warning: division by zero is undefined [-Wdivision-by-zero]
1283 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP_3,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1284 | (IGC_ADVTXD_TSTAMP_REG_3));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1287:14: warning: division by zero is undefined [-Wdivision-by-zero]
1287 | cmd_type ^= IGC_SET_FLAG(skb->no_fcs, 1, IGC_ADVTXD_DCMD_IFCS);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1299:19: warning: division by zero is undefined [-Wdivision-by-zero]
1299 | olinfo_status |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_CSUM,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1300 | (IGC_TXD_POPTS_TXSM << 8));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1303:19: warning: division by zero is undefined [-Wdivision-by-zero]
1303 | olinfo_status |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_IPV4,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1304 | (IGC_TXD_POPTS_IXSM << 8));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:2971:25: warning: division by zero is undefined [-Wdivision-by-zero]
2971 | meta_req->cmd_type |= IGC_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~
2972 | IGC_TX_FLAGS_TSTAMP,
| ~~~~~~~~~~~~~~~~~~~~
2973 | (IGC_ADVTXD_MAC_TSTAMP));
| ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:2974:25: warning: division by zero is undefined [-Wdivision-by-zero]
2974 | meta_req->cmd_type |= IGC_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~
2975 | IGC_TX_FLAGS_TSTAMP_1,
| ~~~~~~~~~~~~~~~~~~~~~~
2976 | (IGC_ADVTXD_TSTAMP_REG_1));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:2977:25: warning: division by zero is undefined [-Wdivision-by-zero]
2977 | meta_req->cmd_type |= IGC_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~
2978 | IGC_TX_FLAGS_TSTAMP_2,
| ~~~~~~~~~~~~~~~~~~~~~~
2979 | (IGC_ADVTXD_TSTAMP_REG_2));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/igc/igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
--
In file included from igc_main.c:12:
In file included from include/linux/bpf_trace.h:5:
In file included from include/trace/events/xdp.h:288:
In file included from include/net/xdp_priv.h:5:
>> include/linux/rhashtable.h:768:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
768 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
igc_main.c:1264:14: warning: division by zero is undefined [-Wdivision-by-zero]
1264 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_VLAN,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1265 | IGC_ADVTXD_DCMD_VLE);
| ~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1268:14: warning: division by zero is undefined [-Wdivision-by-zero]
1268 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSO,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1269 | (IGC_ADVTXD_DCMD_TSE));
| ~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1274:14: warning: division by zero is undefined [-Wdivision-by-zero]
1274 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1275 | (IGC_ADVTXD_MAC_TSTAMP));
| ~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1277:14: warning: division by zero is undefined [-Wdivision-by-zero]
1277 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP_1,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1278 | (IGC_ADVTXD_TSTAMP_REG_1));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1280:14: warning: division by zero is undefined [-Wdivision-by-zero]
1280 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP_2,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1281 | (IGC_ADVTXD_TSTAMP_REG_2));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1283:14: warning: division by zero is undefined [-Wdivision-by-zero]
1283 | cmd_type |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_TSTAMP_3,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1284 | (IGC_ADVTXD_TSTAMP_REG_3));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1287:14: warning: division by zero is undefined [-Wdivision-by-zero]
1287 | cmd_type ^= IGC_SET_FLAG(skb->no_fcs, 1, IGC_ADVTXD_DCMD_IFCS);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1299:19: warning: division by zero is undefined [-Wdivision-by-zero]
1299 | olinfo_status |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_CSUM,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1300 | (IGC_TXD_POPTS_TXSM << 8));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1303:19: warning: division by zero is undefined [-Wdivision-by-zero]
1303 | olinfo_status |= IGC_SET_FLAG(tx_flags, IGC_TX_FLAGS_IPV4,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1304 | (IGC_TXD_POPTS_IXSM << 8));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:2971:25: warning: division by zero is undefined [-Wdivision-by-zero]
2971 | meta_req->cmd_type |= IGC_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~
2972 | IGC_TX_FLAGS_TSTAMP,
| ~~~~~~~~~~~~~~~~~~~~
2973 | (IGC_ADVTXD_MAC_TSTAMP));
| ~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:2974:25: warning: division by zero is undefined [-Wdivision-by-zero]
2974 | meta_req->cmd_type |= IGC_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~
2975 | IGC_TX_FLAGS_TSTAMP_1,
| ~~~~~~~~~~~~~~~~~~~~~~
2976 | (IGC_ADVTXD_TSTAMP_REG_1));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
1254 | ((u32)((_input) & (_flag)) / ((_flag) / (_result))))
| ^ ~~~~~~~~~~~~~~~~~~~~~
igc_main.c:2977:25: warning: division by zero is undefined [-Wdivision-by-zero]
2977 | meta_req->cmd_type |= IGC_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~
2978 | IGC_TX_FLAGS_TSTAMP_2,
| ~~~~~~~~~~~~~~~~~~~~~~
2979 | (IGC_ADVTXD_TSTAMP_REG_2));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
igc_main.c:1254:30: note: expanded from macro 'IGC_SET_FLAG'
vim +768 include/linux/rhashtable.h
757
758 /*
759 * Kick the deferred rehash worker. With insecure_elasticity the caller may
760 * hold a raw spinlock. schedule_work() under a raw spinlock records
761 * caller_lock -> pool->lock -> pi_lock -> rq->__lock. If any of these
762 * locks is acquired in the reverse direction elsewhere, the cycle closes.
763 * Bounce through irq_work so schedule_work() runs from hard IRQ context
764 * with the caller's lock no longer held.
765 */
766 static void rhashtable_kick_deferred_worker(struct rhashtable *ht)
767 {
> 768 if (ht->p.insecure_elasticity)
769 irq_work_queue(&ht->run_irq_work);
770 else
771 schedule_work(&ht->run_work);
772 }
773
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [RFC PATCH] rhashtable: Bounce deferred worker kick through irq_work when insecure_elasticity is set
[not found] <67fedbf2-914b-44f7-9422-1fe97d833705@kernel.org>
2026-04-27 23:12 ` [RFC PATCH] rhashtable: Bounce deferred worker kick through irq_work when insecure_elasticity is set kernel test robot
@ 2026-05-07 8:56 ` kernel test robot
1 sibling, 0 replies; 2+ messages in thread
From: kernel test robot @ 2026-05-07 8:56 UTC (permalink / raw)
To: Tejun Heo; +Cc: llvm, oe-kbuild-all
Hi Tejun,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:
[auto build test WARNING on v7.0]
[cannot apply to tj-sched-ext/for-7.1-fixes linus/master next-20260506]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Tejun-Heo/rhashtable-Bounce-deferred-worker-kick-through-irq_work-when-insecure_elasticity-is-set/20260426-103416
base: v7.0
patch link: https://lore.kernel.org/r/67fedbf2-914b-44f7-9422-1fe97d833705%40kernel.org
patch subject: [RFC PATCH] rhashtable: Bounce deferred worker kick through irq_work when insecure_elasticity is set
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260507/202605071043.7pOYYoAU-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260507/202605071043.7pOYYoAU-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/202605071043.7pOYYoAU-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from ipc/msg.c:41:
include/linux/rhashtable.h:768:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
768 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
>> ipc/msg.c:497:20: warning: implicit conversion from 'int' to 'unsigned short' changes value from 32768000 to 0 [-Wconstant-conversion]
497 | msginfo->msgseg = MSGSEG;
| ~ ^~~~~~
include/uapi/linux/msg.h:87:38: note: expanded from macro 'MSGSEG'
87 | #define MSGSEG (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)
| ^~~~~~~~
include/uapi/linux/msg.h:86:36: note: expanded from macro '__MSGSEG'
86 | #define __MSGSEG ((MSGPOOL * 1024) / MSGSSZ) /* max no. of segments */
| ~~~~~~~~~~~~~~~~~^~~~~~~~
1 warning and 1 error generated.
--
In file included from drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:29:
In file included from include/linux/bpf_trace.h:5:
In file included from include/trace/events/xdp.h:288:
In file included from include/net/xdp_priv.h:5:
include/linux/rhashtable.h:768:12: error: no member named 'insecure_elasticity' in 'struct rhashtable_params'
768 | if (ht->p.insecure_elasticity)
| ~~~~~ ^
>> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8878:14: warning: division by zero is undefined [-Wdivision-by-zero]
8878 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_HW_VLAN,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8879 | IXGBE_ADVTXD_DCMD_VLE);
| ~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8882:14: warning: division by zero is undefined [-Wdivision-by-zero]
8882 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSO,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8883 | IXGBE_ADVTXD_DCMD_TSE);
| ~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8886:14: warning: division by zero is undefined [-Wdivision-by-zero]
8886 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSTAMP,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8887 | IXGBE_ADVTXD_MAC_TSTAMP);
| ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8890:14: warning: division by zero is undefined [-Wdivision-by-zero]
8890 | cmd_type ^= IXGBE_SET_FLAG(skb->no_fcs, 1, IXGBE_ADVTXD_DCMD_IFCS);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8901:19: warning: division by zero is undefined [-Wdivision-by-zero]
8901 | olinfo_status |= IXGBE_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~~~
8902 | IXGBE_TX_FLAGS_CSUM,
| ~~~~~~~~~~~~~~~~~~~~
8903 | IXGBE_ADVTXD_POPTS_TXSM);
| ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8906:19: warning: division by zero is undefined [-Wdivision-by-zero]
8906 | olinfo_status |= IXGBE_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~~~
8907 | IXGBE_TX_FLAGS_IPV4,
| ~~~~~~~~~~~~~~~~~~~~
8908 | IXGBE_ADVTXD_POPTS_IXSM);
| ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8911:19: warning: division by zero is undefined [-Wdivision-by-zero]
8911 | olinfo_status |= IXGBE_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~~~
8912 | IXGBE_TX_FLAGS_IPSEC,
| ~~~~~~~~~~~~~~~~~~~~~
8913 | IXGBE_ADVTXD_POPTS_IPSEC);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8919:19: warning: division by zero is undefined [-Wdivision-by-zero]
8919 | olinfo_status |= IXGBE_SET_FLAG(tx_flags,
| ^~~~~~~~~~~~~~~~~~~~~~~~
8920 | IXGBE_TX_FLAGS_CC,
| ~~~~~~~~~~~~~~~~~~
8921 | IXGBE_ADVTXD_CC);
| ~~~~~~~~~~~~~~~~
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8868:26: note: expanded from macro 'IXGBE_SET_FLAG'
8868 | ((u32)(_input & _flag) / (_flag / _result)))
| ^ ~~~~~~~~~~~~~~~~~
8 warnings and 1 error generated.
vim +497 ipc/msg.c
a0d092fc2df845 Pierre Peiffer 2008-04-29 476
156d9ed1260ee5 Al Viro 2017-07-09 477 static int msgctl_info(struct ipc_namespace *ns, int msqid,
156d9ed1260ee5 Al Viro 2017-07-09 478 int cmd, struct msginfo *msginfo)
a0d092fc2df845 Pierre Peiffer 2008-04-29 479 {
2cafed30f150f7 Davidlohr Bueso 2013-07-08 480 int err;
27c331a1746142 Manfred Spraul 2018-08-21 481 int max_idx;
5a06a363ef4844 Ingo Molnar 2006-07-30 482
5a06a363ef4844 Ingo Molnar 2006-07-30 483 /*
5a06a363ef4844 Ingo Molnar 2006-07-30 484 * We must not return kernel stack data.
^1da177e4c3f41 Linus Torvalds 2005-04-16 485 * due to padding, it's not enough
^1da177e4c3f41 Linus Torvalds 2005-04-16 486 * to set all member fields.
^1da177e4c3f41 Linus Torvalds 2005-04-16 487 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 488 err = security_msg_queue_msgctl(NULL, cmd);
^1da177e4c3f41 Linus Torvalds 2005-04-16 489 if (err)
^1da177e4c3f41 Linus Torvalds 2005-04-16 490 return err;
^1da177e4c3f41 Linus Torvalds 2005-04-16 491
156d9ed1260ee5 Al Viro 2017-07-09 492 memset(msginfo, 0, sizeof(*msginfo));
156d9ed1260ee5 Al Viro 2017-07-09 493 msginfo->msgmni = ns->msg_ctlmni;
156d9ed1260ee5 Al Viro 2017-07-09 494 msginfo->msgmax = ns->msg_ctlmax;
156d9ed1260ee5 Al Viro 2017-07-09 495 msginfo->msgmnb = ns->msg_ctlmnb;
156d9ed1260ee5 Al Viro 2017-07-09 496 msginfo->msgssz = MSGSSZ;
156d9ed1260ee5 Al Viro 2017-07-09 @497 msginfo->msgseg = MSGSEG;
d9a605e40b1376 Davidlohr Bueso 2013-09-11 498 down_read(&msg_ids(ns).rwsem);
72d1e611082eda Jiebin Sun 2022-09-14 499 if (cmd == MSG_INFO)
156d9ed1260ee5 Al Viro 2017-07-09 500 msginfo->msgpool = msg_ids(ns).in_use;
72d1e611082eda Jiebin Sun 2022-09-14 501 max_idx = ipc_get_maxidx(&msg_ids(ns));
72d1e611082eda Jiebin Sun 2022-09-14 502 up_read(&msg_ids(ns).rwsem);
72d1e611082eda Jiebin Sun 2022-09-14 503 if (cmd == MSG_INFO) {
72d1e611082eda Jiebin Sun 2022-09-14 504 msginfo->msgmap = min_t(int,
72d1e611082eda Jiebin Sun 2022-09-14 505 percpu_counter_sum(&ns->percpu_msg_hdrs),
72d1e611082eda Jiebin Sun 2022-09-14 506 INT_MAX);
72d1e611082eda Jiebin Sun 2022-09-14 507 msginfo->msgtql = min_t(int,
72d1e611082eda Jiebin Sun 2022-09-14 508 percpu_counter_sum(&ns->percpu_msg_bytes),
72d1e611082eda Jiebin Sun 2022-09-14 509 INT_MAX);
^1da177e4c3f41 Linus Torvalds 2005-04-16 510 } else {
156d9ed1260ee5 Al Viro 2017-07-09 511 msginfo->msgmap = MSGMAP;
156d9ed1260ee5 Al Viro 2017-07-09 512 msginfo->msgpool = MSGPOOL;
156d9ed1260ee5 Al Viro 2017-07-09 513 msginfo->msgtql = MSGTQL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 514 }
27c331a1746142 Manfred Spraul 2018-08-21 515 return (max_idx < 0) ? 0 : max_idx;
^1da177e4c3f41 Linus Torvalds 2005-04-16 516 }
2cafed30f150f7 Davidlohr Bueso 2013-07-08 517
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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