On Tue, Oct 2, 2012 at 8:34 PM, Greg KH <gre...@linuxfoundation.org> wrote:
> On Tue, Oct 02, 2012 at 06:00:54PM +0300, Andy Shevchenko wrote:
>> There are several places in kernel that use functionality like shell's
>> basename
>> function. Let's do it common helper for them.
>>
>> Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
>> Cc: YAMANE Toshiaki <yamaneto...@gmail.com>
>> ---
>> include/linux/string.h | 11 +++++++++++
>> 1 file changed, 11 insertions(+)
>>
>> diff --git a/include/linux/string.h b/include/linux/string.h
>> index b917881..b09a342 100644
>> --- a/include/linux/string.h
>> +++ b/include/linux/string.h
>> @@ -147,5 +147,16 @@ static inline bool strstarts(const char *str, const
>> char *prefix)
>>
>> extern size_t memweight(const void *ptr, size_t bytes);
>>
>> +/**
>> + * kbasename - return the last part of a pathname.
>> + *
>> + * @path: path to extract the filename from.
>> + */
>> +static inline const char *kbasename(const char *path)
>> +{
>> + const char *tail = strrchr(path, '/');
>> + return tail ? tail + 1 : path;
>
> What happens if '/' is the last thing in the string? You will then
> point to an empty string, which I don't think all callers of this
> function is assuming going to work properly (hint, the USB caller will
> not...)
Thanks for pointing to that. I think it's a usb specific case, so, I
assume your comment related to that patch.
--
With Best Regards,
Andy Shevchenko
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
