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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-12-23 14:31:07 +0000
committerThomas Gleixner <tglx@linutronix.de>2020-01-14 12:20:46 +0100
commit8463cf80529d0fd80b84cd5ab8b9b952b01c7eb9 (patch)
treed51d8e8659466903b6de5a8c82f4efaff1513a8e /lib
parent0b5c12332db5b71c6db0c102b3e6acc7c7c6a54d (diff)
downloadlinux-8463cf80529d0fd80b84cd5ab8b9b952b01c7eb9.tar.bz2
lib/vdso: Let do_coarse() return 0 to simplify the callsite
do_coarse() is similar to do_hres() except that it never fails. Change its type to int instead of void and let it always return success (0) to simplify the call site. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/21e8afa38c02ca8672c2690307383507fe63b454.1577111367.git.christophe.leroy@c-s.fr
Diffstat (limited to 'lib')
-rw-r--r--lib/vdso/gettimeofday.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index b676a9845def..5a5ec899a21a 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -68,7 +68,7 @@ static int do_hres(const struct vdso_data *vd, clockid_t clk,
return 0;
}
-static void do_coarse(const struct vdso_data *vd, clockid_t clk,
+static int do_coarse(const struct vdso_data *vd, clockid_t clk,
struct __kernel_timespec *ts)
{
const struct vdso_timestamp *vdso_ts = &vd->basetime[clk];
@@ -79,6 +79,8 @@ static void do_coarse(const struct vdso_data *vd, clockid_t clk,
ts->tv_sec = vdso_ts->sec;
ts->tv_nsec = vdso_ts->nsec;
} while (unlikely(vdso_read_retry(vd, seq)));
+
+ return 0;
}
static __maybe_unused int
@@ -96,14 +98,13 @@ __cvdso_clock_gettime_common(clockid_t clock, struct __kernel_timespec *ts)
* clocks are handled in the VDSO directly.
*/
msk = 1U << clock;
- if (likely(msk & VDSO_HRES)) {
+ if (likely(msk & VDSO_HRES))
return do_hres(&vd[CS_HRES_COARSE], clock, ts);
- } else if (msk & VDSO_COARSE) {
- do_coarse(&vd[CS_HRES_COARSE], clock, ts);
- return 0;
- } else if (msk & VDSO_RAW) {
+ else if (msk & VDSO_COARSE)
+ return do_coarse(&vd[CS_HRES_COARSE], clock, ts);
+ else if (msk & VDSO_RAW)
return do_hres(&vd[CS_RAW], clock, ts);
- }
+
return -1;
}