linux-kernel - [tip: timers/core] lib/vdso: Build 32 bit specific functions in the right context

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Date:   Mon, 13 Jan 2020 19:09:33 -0000
From:   "tip-bot2 for Vincenzo Frascino" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Vincenzo Frascino <vincenzo.frascino@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andy Lutomirski <luto@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: timers/core] lib/vdso: Build 32 bit specific functions in the
 right context

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     760554e20191c449d4bacd4767129262a4a40fba
Gitweb:        https://git.kernel.org/tip/760554e20191c449d4bacd4767129262a4a40fba
Author:        Vincenzo Frascino <vincenzo.frascino@....com>
AuthorDate:    Fri, 30 Aug 2019 14:58:56 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Fri, 10 Jan 2020 21:14:05 +01:00

lib/vdso: Build 32 bit specific functions in the right context

clock_gettime32 and clock_getres_time32 should be compiled only with a
32 bit vdso library.

Exclude these symbols when BUILD_VDSO32 is not defined.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Andy Lutomirski <luto@...nel.org>
Link: https://lore.kernel.org/r/20190830135902.20861-3-vincenzo.frascino@arm.com

---
 lib/vdso/gettimeofday.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index 42bd8ab..8e77071 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -117,6 +117,7 @@ __cvdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
 	return 0;
 }
 
+#ifdef BUILD_VDSO32
 static __maybe_unused int
 __cvdso_clock_gettime32(clockid_t clock, struct old_timespec32 *res)
 {
@@ -139,6 +140,7 @@ __cvdso_clock_gettime32(clockid_t clock, struct old_timespec32 *res)
 	}
 	return ret;
 }
+#endif /* BUILD_VDSO32 */
 
 static __maybe_unused int
 __cvdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
@@ -231,6 +233,7 @@ int __cvdso_clock_getres(clockid_t clock, struct __kernel_timespec *res)
 	return 0;
 }
 
+#ifdef BUILD_VDSO32
 static __maybe_unused int
 __cvdso_clock_getres_time32(clockid_t clock, struct old_timespec32 *res)
 {
@@ -253,4 +256,5 @@ __cvdso_clock_getres_time32(clockid_t clock, struct old_timespec32 *res)
 	}
 	return ret;
 }
+#endif /* BUILD_VDSO32 */
 #endif /* VDSO_HAS_CLOCK_GETRES */