linux-kernel - [PATCH 1/2] firmware: arm_sdei: remove unused interfaces

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Date:   Tue, 14 Apr 2020 16:23:01 +0200
From:   Christoph Hellwig <hch@....de>
To:     James Morse <james.morse@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] firmware: arm_sdei: remove unused interfaces

The export symbols to register/unregister and enable/disable events
aren't ever used outside of arm_sdei.c, so mark them static.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/firmware/arm_sdei.c | 13 +++++--------
 include/linux/arm_sdei.h    | 15 ---------------
 2 files changed, 5 insertions(+), 23 deletions(-)

diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c
index 334c8be0c11f..bdd6461647d7 100644
--- a/drivers/firmware/arm_sdei.c
+++ b/drivers/firmware/arm_sdei.c
@@ -400,7 +400,7 @@ static void _local_event_enable(void *data)
 	sdei_cross_call_return(arg, err);
 }
 
-int sdei_event_enable(u32 event_num)
+static int sdei_event_enable(u32 event_num)
 {
 	int err = -EINVAL;
 	struct sdei_event *event;
@@ -429,7 +429,6 @@ int sdei_event_enable(u32 event_num)
 
 	return err;
 }
-EXPORT_SYMBOL(sdei_event_enable);
 
 static int sdei_api_event_disable(u32 event_num)
 {
@@ -447,7 +446,7 @@ static void _ipi_event_disable(void *data)
 	sdei_cross_call_return(arg, err);
 }
 
-int sdei_event_disable(u32 event_num)
+static int sdei_event_disable(u32 event_num)
 {
 	int err = -EINVAL;
 	struct sdei_event *event;
@@ -471,7 +470,6 @@ int sdei_event_disable(u32 event_num)
 
 	return err;
 }
-EXPORT_SYMBOL(sdei_event_disable);
 
 static int sdei_api_event_unregister(u32 event_num)
 {
@@ -502,7 +500,7 @@ static int _sdei_event_unregister(struct sdei_event *event)
 	return sdei_do_cross_call(_local_event_unregister, event);
 }
 
-int sdei_event_unregister(u32 event_num)
+static int sdei_event_unregister(u32 event_num)
 {
 	int err;
 	struct sdei_event *event;
@@ -533,7 +531,6 @@ int sdei_event_unregister(u32 event_num)
 
 	return err;
 }
-EXPORT_SYMBOL(sdei_event_unregister);
 
 /*
  * unregister events, but don't destroy them as they are re-registered by
@@ -603,7 +600,8 @@ static int _sdei_event_register(struct sdei_event *event)
 	return err;
 }
 
-int sdei_event_register(u32 event_num, sdei_event_callback *cb, void *arg)
+static int sdei_event_register(u32 event_num, sdei_event_callback *cb,
+		void *arg)
 {
 	int err;
 	struct sdei_event *event;
@@ -643,7 +641,6 @@ int sdei_event_register(u32 event_num, sdei_event_callback *cb, void *arg)
 
 	return err;
 }
-EXPORT_SYMBOL(sdei_event_register);
 
 static int sdei_reregister_event_llocked(struct sdei_event *event)
 {
diff --git a/include/linux/arm_sdei.h b/include/linux/arm_sdei.h
index 0a241c5c911d..5f9fb1d95d51 100644
--- a/include/linux/arm_sdei.h
+++ b/include/linux/arm_sdei.h
@@ -22,21 +22,6 @@
  */
 typedef int (sdei_event_callback)(u32 event, struct pt_regs *regs, void *arg);
 
-/*
- * Register your callback to claim an event. The event must be described
- * by firmware.
- */
-int sdei_event_register(u32 event_num, sdei_event_callback *cb, void *arg);
-
-/*
- * Calls to sdei_event_unregister() may return EINPROGRESS. Keep calling
- * it until it succeeds.
- */
-int sdei_event_unregister(u32 event_num);
-
-int sdei_event_enable(u32 event_num);
-int sdei_event_disable(u32 event_num);
-
 /* GHES register/unregister helpers */
 int sdei_register_ghes(struct ghes *ghes, sdei_event_callback *normal_cb,
 		       sdei_event_callback *critical_cb);
-- 
2.25.1