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Wed, 14 May 2025 15:19:25 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 59BB2A4CADB; Wed, 14 May 2025 05:19:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A890FC4CEEB; Wed, 14 May 2025 05:19:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747199962; bh=xmNb52zrG4E27ByLWoVRVDykaFQ8CdtLS6iK9Dk3nV8=; h=From:To:Cc:Subject:Date:From; b=dEn/m2PKu0tjxDilPRowrR7HMf0oYqZe39uyPMbSUvqjkiVI3mIfiOAba5z35V6R7 q9rfm89UvZjqHoXTT2VKbF6LZzpabQJeObboHdsKFfxu3UGqhVxUmUzpi96w334kS+ dY2zcD10zKalVpMAfB4LWdqPksIuy+HJroF8eCKKcamuOtb4xkcY088r1/RjXu7vcf gA6xSBxpMiPWLKUkVoYmgHBR4KwzSUyAPcH1qmpOTneyKjGzW8epFTbRaLi4R7NTp0 9iHiVJlmeaVwtvJBhTUmPoKhm5J4uVb2lLX3D5f6RcCz2VH4A+5LDXuSFrEmf21ucF Nb6+Rgu+oWTkw== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Danny Tsen , Segher Boessenkool , stable@vger.kernel.org Subject: [PATCH] crypto: powerpc/poly1305 - add depends on BROKEN for now Date: Tue, 13 May 2025 22:18:47 -0700 Message-ID: <20250514051847.193996-1-ebiggers@kernel.org> X-Mailer: git-send-email 2.49.0 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.1 OzLabs 8 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org From: Eric Biggers As discussed in the thread containing https://lore.kernel.org/linux-crypto/20250510053308.GB505731@sol/, the Power10-optimized Poly1305 code is currently not safe to call in softirq context. Disable it for now. It can be re-enabled once it is fixed. Fixes: ba8f8624fde2 ("crypto: poly1305-p10 - Glue code for optmized Poly1305 implementation for ppc64le") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers --- arch/powerpc/lib/crypto/Kconfig | 1 + 1 file changed, 1 insertion(+) base-commit: 57999ed153ed7e651afecbabe0e998e75cf2d798 diff --git a/arch/powerpc/lib/crypto/Kconfig b/arch/powerpc/lib/crypto/Kconfig index ffa541ad6d5da..3f9e1bbd9905b 100644 --- a/arch/powerpc/lib/crypto/Kconfig +++ b/arch/powerpc/lib/crypto/Kconfig @@ -8,10 +8,11 @@ config CRYPTO_CHACHA20_P10 select CRYPTO_ARCH_HAVE_LIB_CHACHA config CRYPTO_POLY1305_P10 tristate depends on PPC64 && CPU_LITTLE_ENDIAN && VSX + depends on BROKEN # Needs to be fixed to work in softirq context default CRYPTO_LIB_POLY1305 select CRYPTO_ARCH_HAVE_LIB_POLY1305 select CRYPTO_LIB_POLY1305_GENERIC config CRYPTO_SHA256_PPC_SPE