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authorKevin Cernekee <cernekee@gmail.com>2014-11-10 13:09:23 -0800
committerSteve French <steve.french@primarydata.com>2014-12-14 14:55:57 -0600
commit97c7134ae22fbd2b8730211f9d4d4517264a8efe (patch)
treebb59df354df66cdfcb1a58f9940c7ebd0ccf3467 /fs/cifs/netmisc.c
parent9235d09873316d602937b5d45c431fb653f3aed8 (diff)
downloadlinux-97c7134ae22fbd2b8730211f9d4d4517264a8efe.tar.bz2
Fix signed/unsigned pointer warning
Commit 2ae83bf93882d1 ("[CIFS] Fix setting time before epoch (negative time values)") changed "u64 t" to "s64 t", which makes do_div() complain about a pointer signedness mismatch: CC fs/cifs/netmisc.o In file included from ./arch/mips/include/asm/div64.h:12:0, from include/linux/kernel.h:124, from include/linux/list.h:8, from include/linux/wait.h:6, from include/linux/net.h:23, from fs/cifs/netmisc.c:25: fs/cifs/netmisc.c: In function ‘cifs_NTtimeToUnix’: include/asm-generic/div64.h:43:28: warning: comparison of distinct pointer types lacks a cast [enabled by default] (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ ^ fs/cifs/netmisc.c:941:22: note: in expansion of macro ‘do_div’ ts.tv_nsec = (long)do_div(t, 10000000) * 100; Introduce a temporary "u64 abs_t" variable to fix this. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Steve French <steve.french@primarydata.com>
Diffstat (limited to 'fs/cifs/netmisc.c')
-rw-r--r--fs/cifs/netmisc.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index b333ff60781d..abae6dd2c6b9 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -926,6 +926,7 @@ cifs_NTtimeToUnix(__le64 ntutc)
/* Subtract the NTFS time offset, then convert to 1s intervals. */
s64 t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET;
+ u64 abs_t;
/*
* Unfortunately can not use normal 64 bit division on 32 bit arch, but
@@ -933,13 +934,14 @@ cifs_NTtimeToUnix(__le64 ntutc)
* to special case them
*/
if (t < 0) {
- t = -t;
- ts.tv_nsec = (long)(do_div(t, 10000000) * 100);
+ abs_t = -t;
+ ts.tv_nsec = (long)(do_div(abs_t, 10000000) * 100);
ts.tv_nsec = -ts.tv_nsec;
- ts.tv_sec = -t;
+ ts.tv_sec = -abs_t;
} else {
- ts.tv_nsec = (long)do_div(t, 10000000) * 100;
- ts.tv_sec = t;
+ abs_t = t;
+ ts.tv_nsec = (long)do_div(abs_t, 10000000) * 100;
+ ts.tv_sec = abs_t;
}
return ts;