From: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Date: Thu, 28 Mar 2013 02:20:32 +0000 (-0700)
Subject: compat: declare kmalloc_array() through LINUX_BACKPORT()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6ae26aae48ab0ba6c06805cba5d3b5acb1455f08;p=openwrt%2Fstaging%2Fblogic.git

compat: declare kmalloc_array() through LINUX_BACKPORT()

This fixes compilation with Debian 3.2 kernels that
cherry picked the commit that added that call (a8203725).

commit a8203725dfded5c1f79dca3368a4a273e24b59bb
Author: Xi Wang <xi.wang@gmail.com>
Date:   Mon Mar 5 15:14:41 2012 -0800

    slab: introduce kmalloc_array()

    Introduce a kmalloc_array() wrapper that performs integer overflow
    checking without zeroing the memory.

    Suggested-by: Andrew Morton <akpm@linux-foundation.org>
    Suggested-by: Jens Axboe <axboe@kernel.dk>
    Signed-off-by: Xi Wang <xi.wang@gmail.com>
    Cc: Dan Carpenter <dan.carpenter@oracle.com>
    Acked-by: David Rientjes <rientjes@google.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Pekka Enberg <penberg@kernel.org>

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
---

diff --git a/include/linux/compat-3.4.h b/include/linux/compat-3.4.h
index 94d3bf718c44..2cd64a1c1801 100644
--- a/include/linux/compat-3.4.h
+++ b/include/linux/compat-3.4.h
@@ -40,6 +40,7 @@ extern void compat_wake_up_locked(wait_queue_head_t *q, unsigned int mode, int n
 
 /* SIZE_MAX is backported in compat-3.5.h so include it */
 #include <linux/compat-3.5.h>
+#define kmalloc_array LINUX_BACKPORT(kmalloc_array)
 static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
 {
 	if (size != 0 && n > SIZE_MAX / size)