From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF47B353A69 for ; Mon, 10 Aug 2026 20:23:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786393430; cv=none; b=jD8E710YsPeMYtw82GY8ZX6BDk1SU6iceQrQKIKE7pqSTujR02HKyfImEy6mSR6I1wen+57bsqaCXG/5XNE2NoQerbpAg46XVNk3oi/sBQtpdYy0Zoc/L6Saqn/HZyiEOhNw4xdWMkileZhFXKewqm/r0wSueqjYfJeK1K2azg4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786393430; c=relaxed/simple; bh=T7syBRLjZcpo0dYU6Ejm6cYBUEHkD+wo/cEm37cmUg8=; h=Date:To:From:Subject:Message-Id; b=FbTssvBL1XlVEWUOiHcItNydgiR+YwTZNm/xQG1NW7JpGAPvjgSQ8oPjayfvI9oabObvyrrBk8CxsHxVDmBNkhbymfAhOeeol2tpy/lwR5UJCG+jUE1q43/6kKV7OKlEr7LhXbc/v79fC2bD9Sf/VF+Ub549Xz3KaHZw3azrlMg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=lDAsGKHV; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="lDAsGKHV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8EA1F1F000E9; Mon, 10 Aug 2026 20:23:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1786393428; bh=rONA/Gs5KuV8y2es2kS9mTLytHFXcf0KcalbbBFz3f8=; h=Date:To:From:Subject; b=lDAsGKHVadHnowy6Zr2PspeAKP1i6wzMwqTpyN4n+t2JR8dmOOWJ2oy+l4rGABUL8 bJNGxp3vnyeMGgexQscEqOz0ZN4vrcoXQWXuAOYGvaD+iTh2a3vcHCYcFyRp49N2m/ ybfrY0eBmcH3FLF6lBOpUpsVS8ARAJZpu9j4aj7E= Date: Mon, 10 Aug 2026 13:23:48 -0700 To: mm-commits@vger.kernel.org,skinsburskii@gmail.com,lkp@intel.com,david@kernel.org,akpm@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-hmmc-hmm_do_fault-suppress-sparse-warning.patch added to mm-new branch Message-Id: <20260810202348.8EA1F1F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/hmm.c:hmm_do_fault(): suppress sparse warning has been added to the -mm mm-new branch. Its filename is mm-hmmc-hmm_do_fault-suppress-sparse-warning.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hmmc-hmm_do_fault-suppress-sparse-warning.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Andrew Morton Subject: mm/hmm.c:hmm_do_fault(): suppress sparse warning Date: Mon Aug 10 01:16:37 PM PDT 2026 mm/hmm.c:673 hmm_do_fault() error: we previously assumed 'hmm_vma_walk->locked' could be null (see line 654) Stanislav says this can't happen. Waste a few cycles to make the warning go away. Fixes: 121170831228 ("mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support") Reported-by: kernel test robot Closes: https://lore.kernel.org/202608101053.PhnVUM4u-lkp@intel.com Cc: Stanislav Kinsburskii Cc: David Hildenbrand Signed-off-by: Andrew Morton --- mm/hmm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/mm/hmm.c~mm-hmmc-hmm_do_fault-suppress-sparse-warning +++ a/mm/hmm.c @@ -670,7 +670,8 @@ static int hmm_do_fault(struct mm_struct ret = handle_mm_fault(vma, addr, fault_flags, NULL); if (ret & (VM_FAULT_COMPLETED | VM_FAULT_RETRY)) { - *hmm_vma_walk->locked = false; + if (hmm_vma_walk->locked) /* needed by sparse */ + *hmm_vma_walk->locked = false; return HMM_FAULT_UNLOCKED; } _ Patches currently in -mm which might be from akpm@linux-foundation.org are mm-page_alloc-only-update-lowmem_reserve_ratio-on-sysctl-write-fix.patch selftests-mm-use-pattern-matching-in-gitignore-fix.patch selftests-mm-fix-soft-dirty-kselftest-supported-check-fix.patch alloc_tag-add-ioctl-to-proc-allocinfo-fix.patch mm-hmmc-hmm_do_fault-suppress-sparse-warning.patch drivers-media-v4l2-core-v4l2-vp9c-reduce-inlining.patch