On Wed, 23 Mar 2011 21:36:48 +0100
Geert Uytterhoeven<geert@xxxxxxxxxxxxxx> wrote:
On Thu, Jan 20, 2011 at 00:49, Andrew Morton<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:On Wed, 12 Jan 2011 18:07:23 +0000
Stuart Swales<stuart.swales.croftnuisk@xxxxxxxxx> wrote:
From: Stuart Swales<stuart.swales.croftnuisk@xxxxxxxxx>
+static inline int append_filetype_suffix(char *buf, __u16 filetype)
+{
+ __ __ if ((__u16) -1 == filetype)
unneeded cast.
My compiler tends to disagree. On current mainline, it says:
fs/adfs/adfs.h: In function ___append_filetype_suffix___:
fs/adfs/adfs.h:115: warning: comparison is always false due to limited
range of data type
hm, OK, I'll add a cast.
The code seems a bit fishy - it wants 0xffff but the comment says it's
handling a 12-bit quantity. Obviously the all-ones pattern has some
magical out-of-band meaning here, but it is not explained what that
meaning *is*. Perhaps that is described elsewhere.