| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1173419792.32234.131.camel@localhost.localdomain> Date: Fri, 09 Mar 2007 16:56:32 +1100 From: Rusty Russell <rusty@...tcorp.com.au> To: lkml - Kernel Mailing List <linux-kernel@...r.kernel.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org> Subject: [PATCH] Use more gcc extensions in the Linux headers __builtin_types_compatible_p() has been around since gcc 2.95, and we don't use it anywhere. This patch quietly fixes that. Signed-off-by: Rusty Russell <rusty@...tcorp.com.au> diff -r f0ff8138f993 include/linux/kernel.h --- a/include/linux/kernel.h Fri Mar 09 16:40:25 2007 +1100 +++ b/include/linux/kernel.h Fri Mar 09 16:44:04 2007 +1100 @@ -35,7 +35,9 @@ extern const char linux_proc_banner[]; #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) \ + + sizeof(typeof(int[1 - 2*!!__builtin_types_compatible_p(typeof(arr), \ + typeof(&arr[0]))]))*0) #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists