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b=X+yMWeeXj1pvQIPqcbKcmDHMpkw+d1FdTTM8zlMEOipUyBCtnhcfR2TnoxqfEfVam Y6VLdllNMi3qy7EMIbca7ySGK/E0vX3kU7AY4ykt/RYJLGZE9FJ/X8a2E4OO4mLrri Qdlvs2sr7afIW191kTtd3t1p5lDKQRbdYZ1Egcvwak2ZJxzRx0k+ru9kK6LFqHOLzY hMZ1KrtIG0Ept+RgXfzqM/gp17PzuYZiRRNRzV5QVLFHbsLaqbKybg8uChvOxTiUNd cI0Q0kiMga9Zcds0v9ynDzF6YoR1pxCQPJKStJGetd7k/ziJj9aae9ol9RxzKk+kfU JlZgmkhgRlC0Q== From: Sasha Levin To: stable@vger.kernel.org, williamt@cadence.com Cc: Max Filippov , Chris Zankel , Andrew Morton , linux-mm@kvack.org Subject: FAILED: Patch "mm/highmem: fix __kmap_to_page() build error" failed to apply to 6.12-stable tree Date: Sat, 28 Feb 2026 20:24:53 -0500 Message-ID: <20260301012454.1681859-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: BA4A7C0006 X-Stat-Signature: kakukez95wyus1zfbfobynoiydkq9kni X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1772328296-848099 X-HE-Meta: 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 f/LX1Ae2 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 94350fe6cad77b46c3dcb8c96543bef7647efbc0 Mon Sep 17 00:00:00 2001 From: William Tambe Date: Thu, 11 Dec 2025 12:38:19 -0800 Subject: [PATCH] mm/highmem: fix __kmap_to_page() build error This changes fixes following build error which is a miss from ef6e06b2ef87 ("highmem: fix kmap_to_page() for kmap_local_page() addresses"). mm/highmem.c:184:66: error: 'pteval' undeclared (first use in this function); did you mean 'pte_val'? 184 | idx = arch_kmap_local_map_idx(i, pte_pfn(pteval)); In __kmap_to_page(), pteval is used but does not exist in the function. (akpm: affects xtensa only) Link: https://lkml.kernel.org/r/SJ0PR07MB86317E00EC0C59DA60935FDCD18DA@SJ0PR07MB8631.namprd07.prod.outlook.com Fixes: ef6e06b2ef87 ("highmem: fix kmap_to_page() for kmap_local_page() addresses") Signed-off-by: William Tambe Reviewed-by: Max Filippov Cc: Chris Zankel Cc: Max Filippov Cc: Signed-off-by: Andrew Morton --- mm/highmem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/highmem.c b/mm/highmem.c index b5c8e4c2d5d49..a33e411839517 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -180,12 +180,13 @@ struct page *__kmap_to_page(void *vaddr) for (i = 0; i < kctrl->idx; i++) { unsigned long base_addr; int idx; + pte_t pteval = kctrl->pteval[i]; idx = arch_kmap_local_map_idx(i, pte_pfn(pteval)); base_addr = __fix_to_virt(FIX_KMAP_BEGIN + idx); if (base_addr == base) - return pte_page(kctrl->pteval[i]); + return pte_page(pteval); } } -- 2.51.0