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authorArnd Bergmann <arnd@arndb.de>2023-05-17 15:11:02 +0200
committerThomas Gleixner <tglx@linutronix.de>2023-05-31 21:45:49 +0200
commitb7a7ce1bb77b19ff2859d365da96285340fbc145 (patch)
treed9a2981cdbe59075dc7b45e4ec564bef341c69b9 /include/linux/time_namespace.h
parent7877cb91f1081754a1487c144d85dc0d2e2e7fc4 (diff)
vdso/timens: Always provide arch_get_vdso_data() prototype for vdso
The arch_get_vdso_data() function is defined separately on each architecture, but only called when CONFIG_TIME_NS is set. If the definition is a global function, this causes a W=1 warning without TIME_NS: arch/x86/entry/vdso/vma.c:35:19: error: no previous prototype for 'arch_get_vdso_data' [-Werror=missing-prototypes] Move the prototype out of the #ifdef block to reliably turn off that warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20230517131102.934196-15-arnd@kernel.org
Diffstat (limited to 'include/linux/time_namespace.h')
-rw-r--r--include/linux/time_namespace.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/time_namespace.h b/include/linux/time_namespace.h
index bb9d3f5542f8..03d9c5ac01d1 100644
--- a/include/linux/time_namespace.h
+++ b/include/linux/time_namespace.h
@@ -44,7 +44,6 @@ struct time_namespace *copy_time_ns(unsigned long flags,
struct time_namespace *old_ns);
void free_time_ns(struct time_namespace *ns);
void timens_on_fork(struct nsproxy *nsproxy, struct task_struct *tsk);
-struct vdso_data *arch_get_vdso_data(void *vvar_page);
struct page *find_timens_vvar_page(struct vm_area_struct *vma);
static inline void put_time_ns(struct time_namespace *ns)
@@ -163,4 +162,6 @@ static inline ktime_t timens_ktime_to_host(clockid_t clockid, ktime_t tim)
}
#endif
+struct vdso_data *arch_get_vdso_data(void *vvar_page);
+
#endif /* _LINUX_TIMENS_H */