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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
committed by Tom Cosgrove
parent 6978e73939
commit 30c356c540
1 changed files with 3 additions and 4 deletions
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7
library/aes.c
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@@ -50,8 +50,7 @@
#define AES_VALIDATE(cond) \
MBEDTLS_INTERNAL_VALIDATE(cond)
#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
@@ -539,7 +538,7 @@ int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key,
}
#endif
#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);
}
@@ -648,7 +647,7 @@ int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key,
mbedtls_aes_init(&cty);
#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);
}