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b=dzMNRBQuFhmdDHMH4Ki1HnsSzU/VexuA0ZMgP+LJe7AjYORt9dEr+jkSlfMgZxeuE iKJLf0FAI9iJacXRPtNUVWFCtt2jhfJ/xioNCYEusMpb5zQsQqZVviveCY/c6Rcec5 FH4X991/L4QgfqSGmM2RaqKDcubjsPTwq2InSjwVwGIzf2yJHS06rmtRJYDAX1rOK8 rmjjCgpoUqnAesOuzkOaFl7CZo8sZhqFz3i/eUDJM1i59PIfEk4ZXHQqUWNctHCfDD /AObwX3xd/ywwYIdvqmKoIQSLm4VlaxxRl4QuyKawjgEaivNJbN54ePw6xw+L9R30B SRdxJvUZ92lhg== 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 6.6-stable tree Date: Sat, 28 Feb 2026 20:35:42 -0500 Message-ID: <20260301013543.1695499-1-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: AEA75140009 X-Stat-Signature: 1e3ec8r8btwe79p5qj7178aruuksnhkm X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1772328945-182487 X-HE-Meta: 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 Mwqu5qKz 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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 6.6-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