diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2013-09-21 11:23:50 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-09-22 11:43:38 +0100 |
| commit | 40190c85f427dcfdbab5dbef4ffd2510d649da1f (patch) | |
| tree | 568478c8958a1f2266dd4794b7f1c00678233ec0 /arch/arm | |
| parent | c4a30c3b2997bbc7d81cd0f5fde43599700834f5 (diff) | |
| download | linux-40190c85f427dcfdbab5dbef4ffd2510d649da1f.tar.bz2 | |
ARM: 7837/3: fix Thumb-2 bug in AES assembler code
Patch 638591c enabled building the AES assembler code in Thumb2 mode.
However, this code used arithmetic involving PC rather than adr{l}
instructions to generate PC-relative references to the lookup tables,
and this needs to take into account the different PC offset when
running in Thumb mode.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/crypto/aes-armv4.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/crypto/aes-armv4.S b/arch/arm/crypto/aes-armv4.S index 19d6cd6f29f9..3a14ea8fe97e 100644 --- a/arch/arm/crypto/aes-armv4.S +++ b/arch/arm/crypto/aes-armv4.S @@ -148,7 +148,7 @@ AES_Te: @ const AES_KEY *key) { .align 5 ENTRY(AES_encrypt) - sub r3,pc,#8 @ AES_encrypt + adr r3,AES_encrypt stmdb sp!,{r1,r4-r12,lr} mov r12,r0 @ inp mov r11,r2 @@ -381,7 +381,7 @@ _armv4_AES_encrypt: .align 5 ENTRY(private_AES_set_encrypt_key) _armv4_AES_set_encrypt_key: - sub r3,pc,#8 @ AES_set_encrypt_key + adr r3,_armv4_AES_set_encrypt_key teq r0,#0 moveq r0,#-1 beq .Labrt @@ -843,7 +843,7 @@ AES_Td: @ const AES_KEY *key) { .align 5 ENTRY(AES_decrypt) - sub r3,pc,#8 @ AES_decrypt + adr r3,AES_decrypt stmdb sp!,{r1,r4-r12,lr} mov r12,r0 @ inp mov r11,r2 |