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Mon, 07 Jul 2025 09:01:10 -0700 (PDT) Received: from localhost ([2a03:2880:20ff:1::]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4a994a7a9e9sm65925241cf.50.2025.07.07.09.01.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jul 2025 09:01:09 -0700 (PDT) From: Breno Leitao Date: Mon, 07 Jul 2025 09:01:02 -0700 Subject: [PATCH 2/8] arm64: efi: Remove CONFIG_VMAP_STACK check MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250707-arm64_vmap-v1-2-8de98ca0f91c@debian.org> References: <20250707-arm64_vmap-v1-0-8de98ca0f91c@debian.org> In-Reply-To: <20250707-arm64_vmap-v1-0-8de98ca0f91c@debian.org> To: Catalin Marinas , Will Deacon , Ard Biesheuvel Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, Breno Leitao , leo.yan@arm.com, kernel-team@meta.com, mark.rutland@arm.com X-Mailer: b4 0.15-dev-42535 X-Developer-Signature: v=1; a=openpgp-sha256; l=936; i=leitao@debian.org; h=from:subject:message-id; bh=AWcDwEaXce/sX/AWhtimr7eCGYzpjHt9k/AolPLC7d4=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBoa+9DX54jFJTcy8xfqR9DrHCzMBCal79scVSM9 jDCLskwppyJAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCaGvvQwAKCRA1o5Of/Hh3 bax4D/9MnLN2FeTuY4JCgIXmAL/UBGsGnXZX/ppObPSfuS3pvWI9ahzc9cBKO22ZeStDUDZEuml zDUmaDcXnzGPLOLo4JTg6FiEsgEvO3RaW8Wv7tiue76uKah5gUO4ROuq2TKYCaunQkHFAQzItcX x9xN60cmf/78rROdj0y8Tf/nzLt8p6/X6wJ/Q3VuVWZKsMZNhztyeIysjqK7RH9zZ68jM+g+k/3 n1UDQaN3GzxO32sOEc+RlOJiMsSiMV/kW1ezYAXovVFo5bGdIihJXhqV2kCjJN5G9deHf9jKFhy velPTGXMAGQAPY425E2KE8cN0jLAbdwc7EPzVOuMwLk5SihJJtTzwQ/pUrQZQG0BR9cY6F9wlfp qX+mlgpUaLojQ2k4oUSOfe5OsI6XwCmyq+E6EYrveGbOkg2sFYEqoVG836TJSr63eVmNvl686Zu ZxOmOQdxki+fDQ54AMDEuBPzWkZVbbIeF+RvXtp41lWgHTp5Vo6423fx0rUdzu8r+xB1wHAnE7d tPEve+xhW9vN1NjkDmXl0/Iu4sDyi1Pbi+bqH31qyTxXq84MBehRjTNqZaqHJCR5aiusR7pVUw1 olDRILYLMTxksa2sVJb3CqBFaAaCJSw1VNmmfZQQSbeyqymtibkezL4hR5CgFleTqUUQu+ye0I9 fXIf/Na0qPRXruw== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250707_090111_785159_83CEF125 X-CRM114-Status: GOOD ( 11.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Remove the CONFIG_VMAP_STACK check in arm64_efi_rt_init() since VMAP_STACK is now always enabled on arm64. The arch_alloc_vmap_stack() call will fail to build if VMAP_STACK is not set, providing sufficient protection without the explicit runtime check. Signed-off-by: Breno Leitao --- arch/arm64/kernel/efi.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index 62230d6dd919..6c371b158b99 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -215,11 +215,6 @@ static int __init arm64_efi_rt_init(void) if (!efi_enabled(EFI_RUNTIME_SERVICES)) return 0; - if (!IS_ENABLED(CONFIG_VMAP_STACK)) { - clear_bit(EFI_RUNTIME_SERVICES, &efi.flags); - return -ENOMEM; - } - p = arch_alloc_vmap_stack(THREAD_SIZE, NUMA_NO_NODE); if (!p) { pr_warn("Failed to allocate EFI runtime stack\n"); -- 2.47.1