On Sun, 7 Feb 2021 at 03:47, liulongfang <liulongf...@huawei.com> wrote: > > On 2021/2/5 19:44, Herbert Xu write: > > On Fri, Feb 05, 2021 at 06:10:57PM +0800, Longfang Liu wrote: > >> If this configuration item is not turned on, > >> the allocation of crypto_tfm will fail when > >> the shash algorithm calculates the hash > >> through the software. > >> > >> Signed-off-by: Longfang Liu <liulongf...@huawei.com> > >> --- > >> arch/arm64/configs/defconfig | 2 +- > >> 1 file changed, 1 insertion(+), 1 deletion(-) > >> > >> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig > >> index 8383016..7cfc9b6 100644 > >> --- a/arch/arm64/configs/defconfig > >> +++ b/arch/arm64/configs/defconfig > >> @@ -117,7 +117,7 @@ CONFIG_KVM=y > >> CONFIG_ARM64_CRYPTO=y > >> CONFIG_CRYPTO_SHA1_ARM64_CE=y > >> CONFIG_CRYPTO_SHA2_ARM64_CE=y > >> -CONFIG_CRYPTO_SHA512_ARM64_CE=m > >> +CONFIG_CRYPTO_SHA512_ARM64_CE=y > > > > If this is truly needed then it should be enabled through Kconfig. > > > > Cheers, > > > Hi Herbert, > The option select CRYPTO_SHA512 already exists in Kconfig.
In that case, how can the shash TFM allocation fail? > Can I change it to this: select CRYPTO_SHA512 || CRYPTO_SHA512_ARM64_CE No, you cannot select expressions like that. Could you please explain the problem you are trying to solve?
