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Use consistent guards for padlock code

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The padlock feature is enabled if
```
defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
```
with the second macro coming from `padlock.h`. The availability of the
macro `MBEDTLS_PADLOCK_ALIGN16` is coincidentally equivalent to
`MBEDTLS_HAVE_X86` but this is not meaningful.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2023-03-16 14:58:46 +01:00
parent 844f65dc65
commit 0f454e4642
1 changed files with 3 additions and 4 deletions
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7
library/aes.c
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@ -47,8 +47,7 @@
#if !defined(MBEDTLS_AES_ALT)
#if defined(MBEDTLS_PADLOCK_C) && \
(defined(MBEDTLS_HAVE_X86) || defined(MBEDTLS_PADLOCK_ALIGN16))
#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
static int aes_padlock_ace = -1;
#endif
@ -530,7 +529,7 @@ int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key,
#endif
ctx->rk_offset = 0;
#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16)
#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
if (aes_padlock_ace == -1) {
aes_padlock_ace = mbedtls_padlock_has_support(MBEDTLS_PADLOCK_ACE);
}
@ -642,7 +641,7 @@ int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key,
mbedtls_aes_init(&cty);
ctx->rk_offset = 0;
#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16)
#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
if (aes_padlock_ace == -1) {
aes_padlock_ace = mbedtls_padlock_has_support(MBEDTLS_PADLOCK_ACE);
}