From: Behan Webster Date: Mon, 8 Sep 2014 05:05:09 +0000 (-0500) Subject: crypto: LLVMLinux: Add macro to remove use of VLAIS in crypto code X-Git-Tag: fixes-against-v3.18-rc2~66^2~11 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0a77af14117e388d43b2385d5ecc800e2d6eee9;p=pandora-kernel.git crypto: LLVMLinux: Add macro to remove use of VLAIS in crypto code Add a macro which replaces the use of a Variable Length Array In Struct (VLAIS) with a C99 compliant equivalent. This macro instead allocates the appropriate amount of memory using an char array. The new code can be compiled with both gcc and clang. struct shash_desc contains a flexible array member member ctx declared with CRYPTO_MINALIGN_ATTR, so sizeof(struct shash_desc) aligns the beginning of the array declared after struct shash_desc with long long. No trailing padding is required because it is not a struct type that can be used in an array. The CRYPTO_MINALIGN_ATTR is required so that desc is aligned with long long as would be the case for a struct containing a member with CRYPTO_MINALIGN_ATTR. If you want to get to the ctx at the end of the shash_desc as before you can do so using shash_desc_ctx(shash) Signed-off-by: Behan Webster Reviewed-by: Mark Charlebois Acked-by: Herbert Xu Cc: Michał Mirosław --- Reading git-diff-tree failed