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Re: [Xen-devel] [PATCH] xen: cpu: change 'cpu_hotplug_[begin|done]' to inline function



Hi,

On 5/31/19 3:46 AM, Baodong Chen wrote:
Signed-off-by: Baodong Chen <chenbaodong@xxxxxxxxxx>
---
  xen/common/cpu.c      | 10 ----------
  xen/include/xen/cpu.h |  4 ++--
  2 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/xen/common/cpu.c b/xen/common/cpu.c
index f388d89..a526b55 100644
--- a/xen/common/cpu.c
+++ b/xen/common/cpu.c
@@ -51,16 +51,6 @@ void put_cpu_maps(void)
      spin_unlock_recursive(&cpu_add_remove_lock);
  }
-bool_t cpu_hotplug_begin(void)
-{
-    return get_cpu_maps();
-}
-
-void cpu_hotplug_done(void)
-{
-    put_cpu_maps();
-}
-
  static NOTIFIER_HEAD(cpu_chain);
void __init register_cpu_notifier(struct notifier_block *nb)
diff --git a/xen/include/xen/cpu.h b/xen/include/xen/cpu.h
index 4638c50..70a2df4 100644
--- a/xen/include/xen/cpu.h
+++ b/xen/include/xen/cpu.h
@@ -10,8 +10,8 @@ bool_t get_cpu_maps(void);
  void put_cpu_maps(void);
/* Safely perform CPU hotplug and update cpu_online_map, etc. */
-bool_t cpu_hotplug_begin(void);
-void cpu_hotplug_done(void);
+static inline bool_t cpu_hotplug_begin(void) { return get_cpu_maps(); }
+static inline void cpu_hotplug_done(void) { put_cpu_maps(); }

The coding style should be:

static inline....
{
      ...
}

/* Receive notification of CPU hotplug events. */
  void register_cpu_notifier(struct notifier_block *nb);


Cheers,

--
Julien Grall

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