A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

crypto: x86/aes-ni - switch to generic for fallback and key routines

Browse source 
The AES-NI code contains fallbacks for invocations that occur from a
context where the SIMD unit is unavailable, which really only occurs
when running in softirq context that was entered from a hard IRQ that
was taken while running kernel code that was already using the FPU.

That means performance is not really a consideration, and we can just
use the new library code for this use case, which has a smaller
footprint and is believed to be time invariant. This will allow us to
drop the non-SIMD asm routines in a subsequent patch.

Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Ard Biesheuvel 2019-07-02 21:41:23 +02:00 • committed by Herbert Xu
commit 2c53fd11f7
3 changed files with 8 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

3
crypto/Kconfig
View file

@ -1156,8 +1156,7 @@ config CRYPTO_AES_NI_INTEL
tristate "AES cipher algorithms (AES-NI)"
depends on X86
select CRYPTO_AEAD
select CRYPTO_AES_X86_64 if 64BIT
select CRYPTO_AES_586 if !64BIT
select CRYPTO_LIB_AES
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
select CRYPTO_GLUE_HELPER_X86 if 64BIT