From: Eric Biggers ebiggers@google.com
[ Upstream commit bc8169003b41e89fe7052e408cf9fdbecb4017fe ]
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 ebiggers@google.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au [ applied to arch/powerpc/crypto/Kconfig ] Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/crypto/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig index 7012fa55aceb9..15783f2307dfe 100644 --- a/arch/powerpc/crypto/Kconfig +++ b/arch/powerpc/crypto/Kconfig @@ -143,6 +143,7 @@ config CRYPTO_CHACHA20_P10 config CRYPTO_POLY1305_P10 tristate "Hash functions: Poly1305 (P10 or later)" depends on PPC64 && CPU_LITTLE_ENDIAN && VSX + depends on BROKEN # Needs to be fixed to work in softirq context select CRYPTO_HASH select CRYPTO_LIB_POLY1305_GENERIC help