---

yaml --- r: 22338 b: refs/heads/master c: f10b789 h: refs/heads/master v: v3
git-mirror · Mar 21, 2006 · e0c5022 · e0c5022
1 parent 1821c63
commit e0c5022
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Showing 4 changed files with 16 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a5f8c473052bc693cdbe2f9ae4b424b993886ff5
+refs/heads/master: f10b7897ee29649fa7f0ccdc8d859ccd6ce7dbfd
diff --git a/trunk/crypto/api.c b/trunk/crypto/api.c
@@ -165,7 +165,7 @@ static unsigned int crypto_ctxsize(struct crypto_alg *alg, int flags)
 		break;
 	}
 
-	return len + alg->cra_alignmask;
+	return len + (alg->cra_alignmask & ~(crypto_tfm_ctx_alignment() - 1));
 }
 
 struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)

diff --git a/trunk/drivers/crypto/padlock-aes.c b/trunk/drivers/crypto/padlock-aes.c
@@ -284,7 +284,11 @@ aes_hw_extkey_available(uint8_t key_len)
 
 static inline struct aes_ctx *aes_ctx(void *ctx)
 {
-	return (struct aes_ctx *)ALIGN((unsigned long)ctx, PADLOCK_ALIGNMENT);
+	unsigned long align = PADLOCK_ALIGNMENT;
+
+	if (align <= crypto_tfm_ctx_alignment())
+		align = 1;
+	return (struct aes_ctx *)ALIGN((unsigned long)ctx, align);
 }
 
 static int

diff --git a/trunk/include/linux/crypto.h b/trunk/include/linux/crypto.h
@@ -229,6 +229,8 @@ struct crypto_tfm {
 	} crt_u;
 
 	struct crypto_alg *__crt_alg;
+
+	char __crt_ctx[] __attribute__ ((__aligned__));
 };
 
 /* 
@@ -301,7 +303,13 @@ static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
 
 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
 {
-	return (void *)&tfm[1];
+	return tfm->__crt_ctx;
+}
+
+static inline unsigned int crypto_tfm_ctx_alignment(void)
+{
+	struct crypto_tfm *tfm;
+	return __alignof__(tfm->__crt_ctx);
 }
 
 /*
-Original file line number
+Diff line change
@@ Expand Up @@
     		break;
     	}
-    	return len + alg->cra_alignmask;
+    	return len + (alg->cra_alignmask & ~(crypto_tfm_ctx_alignment() - 1));
     }
     struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
@@ Expand Down @@