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authorRob Clark <robdclark@chromium.org>2021-12-06 09:13:49 -0800
committerRob Clark <robdclark@chromium.org>2021-12-06 09:14:28 -0800
commit83b965d118cbab1dbdfffdff8cabc8c1cfd183c6 (patch)
treef46a8f6d854b05a47311125f6fd6b6081e79557a /include/linux/ipc_namespace.h
parentfee32807633395e666f0951d6b7b6546e9b76c3d (diff)
parentc305ae99dfd4d0fe70c7fdf13ef5f7650a804ea7 (diff)
Merge remote-tracking branch 'drm/drm-next' into msm-next-staging
Backmerge drm-next to pull in: 8f59ee9a570c ("drm/msm/dsi: Adjust probe order") Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'include/linux/ipc_namespace.h')
-rw-r--r--include/linux/ipc_namespace.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 05e22770af51..b75395ec8d52 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -131,6 +131,16 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
return ns;
}
+static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
+{
+ if (ns) {
+ if (refcount_inc_not_zero(&ns->ns.count))
+ return ns;
+ }
+
+ return NULL;
+}
+
extern void put_ipc_ns(struct ipc_namespace *ns);
#else
static inline struct ipc_namespace *copy_ipcs(unsigned long flags,
@@ -147,6 +157,11 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
return ns;
}
+static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
+{
+ return ns;
+}
+
static inline void put_ipc_ns(struct ipc_namespace *ns)
{
}