From 4839e86892a6f9f8bd2449f4c622639a1ca5ea62 Mon Sep 17 00:00:00 2001 From: AKASHI Takahiro Date: Wed, 13 Nov 2019 09:44:47 +0900 Subject: linux_compat: move kmemdup() from ubifs.c to linux_compat.c linux_compat.c is the best place for kmemdup(), which is currenly used only in ubifs.c, but will also be used when other kernel files (in my case, lib/crypto/x509_cert_parser.c and pkcs7_parser.c) will be imported. So just move it. Signed-off-by: AKASHI Takahiro Reviewed-by: Heinrich Schuchardt --- lib/linux_compat.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'lib/linux_compat.c') diff --git a/lib/linux_compat.c b/lib/linux_compat.c index 81ea8fb126..3f440deaa0 100644 --- a/lib/linux_compat.c +++ b/lib/linux_compat.c @@ -40,3 +40,22 @@ void *kmem_cache_alloc(struct kmem_cache *obj, int flag) { return malloc_cache_aligned(obj->sz); } + +/** + * kmemdup - duplicate region of memory + * + * @src: memory region to duplicate + * @len: memory region length + * @gfp: GFP mask to use + * + * Return: newly allocated copy of @src or %NULL in case of error + */ +void *kmemdup(const void *src, size_t len, gfp_t gfp) +{ + void *p; + + p = kmalloc(len, gfp); + if (p) + memcpy(p, src, len); + return p; +} -- cgit v1.2.3