Re: [v2] lib/string: add memrchr function

[Greg KH]

On Wed, Feb 13, 2019 at 02:54:43AM +0800, Xiang Xiao wrote:
> Here is the detailed description for memrchr:
> 
> void *memrchr(const void *s, int c, size_t n);
> 
> The memrchr() function is like the memchr() function, except
> that it searches backward from the end of the n bytes pointed
> to by s instead of forward from the beginning.
> 
> The memrchr() functions return a pointer to the matching byte
> or NULL if the character does not occur in the given memory
> area.
> 
> Signed-off-by: Xiang Xiao <xiaoxiang@xxxxxxxxxx>
> ---
>  include/linux/string.h |  1 +
>  lib/string.c           | 21 +++++++++++++++++++++
>  2 files changed, 22 insertions(+)

Don't add new apis without any users.

thanks,

greg k-h