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Fri, 06 Nov 2026 15:56:22 -0800 (PST) Received: from a1-free ([161.33.196.121]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b1057fda58sm852780a91.7.2026.11.06.15.56.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Nov 2026 15:56:21 -0800 (PST) From: TAKANO Mitsuhiro To: Catalin Marinas , Will Deacon Cc: Mark Rutland , Jonathan Corbet , linux-arm-kernel@lists.infradead.org, Lorenzo Pieralisi , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, TAKANO Mitsuhiro Subject: [PATCH 1/2] arm64: errata: Mark GIC-700 #2941627 N/A in silicon-errata Date: Fri, 6 Nov 2026 23:56:15 +0000 Message-ID: <20261106235616.1533003-2-takano32@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261106235616.1533003-1-takano32@gmail.com> References: <20261106235616.1533003-1-takano32@gmail.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261106_155623_597882_E7D79A47 X-CRM114-Status: GOOD ( 13.90 ) X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 The GIC-700 #2941627 entry in the arm64 silicon-errata table names ARM64_ERRATUM_2941627 in its Kconfig column, but no Kconfig file defines that symbol and no code refers to it, so a reader who follows the name finds nothing at the other end. The workaround has no Kconfig option: irq-gic-v3.c passes the GICD_IIDR value to gic_enable_quirks(), which matches it against gic_quirks[], and gic_enable_quirk_arm64_2941627() enables a static branch. The table already records workarounds of that kind as "N/A", for example NVIDIA T241-FABRIC-4, a GIC workaround like this one. Set the Kconfig column to "N/A", as the table does for workarounds that have no option. The row stays because this file acts as the registry of software workarounds in the kernel: deleting it would drop the table's only pointer to gic_enable_quirk_arm64_2941627(). Only the text of the table changes, and no build was run. Fixes: 6fe5c68ee6a1 ("irqchip/gic-v3: Workaround for GIC-700 erratum 2941627") Signed-off-by: TAKANO Mitsuhiro --- Documentation/arch/arm64/silicon-errata.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst index afe109afe692..afea5e57ab95 100644 --- a/Documentation/arch/arm64/silicon-errata.rst +++ b/Documentation/arch/arm64/silicon-errata.rst @@ -279,7 +279,7 @@ stable kernels. | ARM | MMU S3 | #3995052, | N/A | | | | #3673557 | | +----------------+-----------------+-----------------+-----------------------------+ -| ARM | GIC-700 | #2941627 | ARM64_ERRATUM_2941627 | +| ARM | GIC-700 | #2941627 | N/A | +----------------+-----------------+-----------------+-----------------------------+ | ARM | SI L1 | #4311569 | ARM64_ERRATUM_4311569 | +----------------+-----------------+-----------------+-----------------------------+ -- 2.53.0