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Thu, 27 Nov 2025 01:22:55 -0800 (PST) Date: Thu, 27 Nov 2025 10:22:29 +0100 In-Reply-To: <20251127092226.1439196-8-ardb+git@google.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251127092226.1439196-8-ardb+git@google.com> X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-Developer-Signature: v=1; a=openpgp-sha256; l=697; i=ardb@kernel.org; h=from:subject; bh=bPOIFl7qSFo8fyyP7vM3iVB+S1w+UZidjo3tNBxTCOI=; b=owGbwMvMwCVmkMcZplerG8N4Wi2JIVNDIkz65cQ92/8IPf/2+Omz95cLdJSj//5xu/T6vgODl 7BcJ49nRykLgxgXg6yYIovA7L/vdp6eKFXrPEsWZg4rE8gQBi5OAZjIxyyGfxY7e1+ncsRubd0+ r/dYC9upMAneH5cXs1vfeyHuyNHMVc7IMOWVVNRJEeuexw86Pyaei/4Wy1X763/6xVc6DttPhKw q5gQA X-Mailer: git-send-email 2.52.0.107.ga0afd4fd5b-goog Message-ID: <20251127092226.1439196-10-ardb+git@google.com> Subject: [RFC/RFT PATCH 2/6] arc: Wire up cmpxchg64_local() to generic implementation From: Ard Biesheuvel To: linux-hardening@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ard Biesheuvel , Kees Cook , Ryan Roberts , Will Deacon , Arnd Bergmann , Jeremy Linton , Catalin Marinas , Mark Rutland , "Jason A. Donenfeld" Content-Type: text/plain; charset="UTF-8" From: Ard Biesheuvel Provide cmpxchg64_local() for hexagon so we can start using it in generic code. Signed-off-by: Ard Biesheuvel --- arch/arc/include/asm/cmpxchg.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h index 76f43db0890f..f2d55823645c 100644 --- a/arch/arc/include/asm/cmpxchg.h +++ b/arch/arc/include/asm/cmpxchg.h @@ -12,6 +12,7 @@ #include #include +#include #ifdef CONFIG_ARC_HAS_LLSC @@ -142,4 +143,6 @@ #endif +#define arch_cmpxchg64_local __generic_cmpxchg64_local + #endif -- 2.52.0.107.ga0afd4fd5b-goog