From: kernel test robot <lkp@intel.com>
To: sk@gentwo.org, linux-arm-kernel@lists.infradead.org
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Ryan Roberts <ryan.roberts@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>,
David Hildenbrand <david@kernel.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Mike Rapoport <rppt@kernel.org>, Dev Jain <dev.jain@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
cl@gentwo.org, Sayali Kulkarni <sskulkarni@amperecomputing.com>
Subject: Re: [PATCH 2/2] arm64: tlbflush: Reset active_cpu on ASID rollover
Date: Thu, 11 Jun 2026 04:57:20 +0800 [thread overview]
Message-ID: <202606110405.ytZbcvhH-lkp@intel.com> (raw)
In-Reply-To: <20260609213615.2788698-3-sk@gentwo.org>
Hi Ryan,
kernel test robot noticed the following build warnings:
[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on kvmarm/next soc/for-next linus/master v7.1-rc7 next-20260609]
[cannot apply to arm/for-next arm/fixes]
[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/sk-gentwo-org/arm64-tlbflush-Reset-active_cpu-on-ASID-rollover/20260610-063444
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link: https://lore.kernel.org/r/20260609213615.2788698-3-sk%40gentwo.org
patch subject: [PATCH 2/2] arm64: tlbflush: Reset active_cpu on ASID rollover
config: arm64-randconfig-r132-20260610 (https://download.01.org/0day-ci/archive/20260611/202606110405.ytZbcvhH-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260611/202606110405.ytZbcvhH-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/202606110405.ytZbcvhH-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
arch/arm64/mm/context.c: note: in included file (through arch/arm64/include/asm/atomic.h, include/linux/atomic.h, include/asm-generic/bitops/atomic.h, ...):
>> arch/arm64/include/asm/cmpxchg.h:169:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff)
>> arch/arm64/include/asm/cmpxchg.h:169:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff)
vim +169 arch/arm64/include/asm/cmpxchg.h
10b663aef1c2479 Catalin Marinas 2012-03-05 168
305d454aaa292be Will Deacon 2015-10-08 @169 __CMPXCHG_GEN()
305d454aaa292be Will Deacon 2015-10-08 170 __CMPXCHG_GEN(_acq)
305d454aaa292be Will Deacon 2015-10-08 171 __CMPXCHG_GEN(_rel)
305d454aaa292be Will Deacon 2015-10-08 172 __CMPXCHG_GEN(_mb)
10b663aef1c2479 Catalin Marinas 2012-03-05 173
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
prev parent reply other threads:[~2026-06-10 20:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-09 21:34 arm64: tlbflush: Reset active_cpu on ASID rollover sk
2026-06-09 21:34 ` [PATCH 1/2] arm64: tlbflush: Don't broadcast if mm was only active on local cpu sk
2026-06-09 21:34 ` [PATCH 2/2] arm64: tlbflush: Reset active_cpu on ASID rollover sk
2026-06-10 20:57 ` kernel test robot [this message]
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