linux-kernel - [PATCH v6 7/8] crypto: x86/glue_helper: Remove function prototype cast helpers

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Message-Id: <20191122010334.12081-8-keescook@chromium.org>
Date:   Thu, 21 Nov 2019 17:03:33 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Kees Cook <keescook@...omium.org>,
        João Moreira <joao.moreira@...el.com>,
        Eric Biggers <ebiggers@...nel.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Stephan Mueller <smueller@...onox.de>, x86@...nel.org,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-hardening@...ts.openwall.com
Subject: [PATCH v6 7/8] crypto: x86/glue_helper: Remove function prototype cast helpers

Now that all users of the function prototype casting helpers have been
removed, delete the unused macros.

Signed-off-by: Kees Cook <keescook@...omium.org>
---
 arch/x86/include/asm/crypto/glue_helper.h | 5 -----
 include/crypto/xts.h                      | 2 --
 2 files changed, 7 deletions(-)

diff --git a/arch/x86/include/asm/crypto/glue_helper.h b/arch/x86/include/asm/crypto/glue_helper.h
index ba48d5af4f16..777c0f63418c 100644
--- a/arch/x86/include/asm/crypto/glue_helper.h
+++ b/arch/x86/include/asm/crypto/glue_helper.h
@@ -18,11 +18,6 @@ typedef void (*common_glue_ctr_func_t)(const void *ctx, u8 *dst, const u8 *src,
 typedef void (*common_glue_xts_func_t)(const void *ctx, u8 *dst, const u8 *src,
 				       le128 *iv);
 
-#define GLUE_FUNC_CAST(fn) ((common_glue_func_t)(fn))
-#define GLUE_CBC_FUNC_CAST(fn) ((common_glue_cbc_func_t)(fn))
-#define GLUE_CTR_FUNC_CAST(fn) ((common_glue_ctr_func_t)(fn))
-#define GLUE_XTS_FUNC_CAST(fn) ((common_glue_xts_func_t)(fn))
-
 struct common_glue_func_entry {
 	unsigned int num_blocks; /* number of blocks that @fn will process */
 	union {
diff --git a/include/crypto/xts.h b/include/crypto/xts.h
index 75fd96ff976b..15ae7fdc0478 100644
--- a/include/crypto/xts.h
+++ b/include/crypto/xts.h
@@ -8,8 +8,6 @@
 
 #define XTS_BLOCK_SIZE 16
 
-#define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x))
-
 static inline int xts_check_key(struct crypto_tfm *tfm,
 				const u8 *key, unsigned int keylen)
 {
-- 
2.17.1