commit 8c6c942d33f2a79439e86f8f406afae40a5bc767
author YueHaibing <yuehaibing@huawei.com> Thu Dec 20 02:42:51 2018 +0000
committer Michael Ellerman <mpe@ellerman.id.au> Thu Dec 20 22:59:03 2018 +1100
tree e2af97008ce121ba6fcae6c553d1c301977dc1bb
parent e59f5bd759b7dee57593c5b6c0441609bda5d530

powerpc/eeh: Fix debugfs_simple_attr.cocci warnings

Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
for debugfs files.

Semantic patch information:
Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
imposes some significant overhead as compared to
DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().

Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/kernel/eeh.c

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 6cae6b5..3230137 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -1808,10 +1808,10 @@ static int eeh_freeze_dbgfs_get(void *data, u64 *val)
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(eeh_enable_dbgfs_ops, eeh_enable_dbgfs_get,
-			eeh_enable_dbgfs_set, "0x%llx\n");
-DEFINE_SIMPLE_ATTRIBUTE(eeh_freeze_dbgfs_ops, eeh_freeze_dbgfs_get,
-			eeh_freeze_dbgfs_set, "0x%llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(eeh_enable_dbgfs_ops, eeh_enable_dbgfs_get,
+			 eeh_enable_dbgfs_set, "0x%llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(eeh_freeze_dbgfs_ops, eeh_freeze_dbgfs_get,
+			 eeh_freeze_dbgfs_set, "0x%llx\n");
 #endif
 
 static int __init eeh_init_proc(void)
@@ -1819,12 +1819,12 @@ static int __init eeh_init_proc(void)
 	if (machine_is(pseries) || machine_is(powernv)) {
 		proc_create_single("powerpc/eeh", 0, NULL, proc_eeh_show);
 #ifdef CONFIG_DEBUG_FS
-		debugfs_create_file("eeh_enable", 0600,
-                                    powerpc_debugfs_root, NULL,
-                                    &eeh_enable_dbgfs_ops);
-		debugfs_create_file("eeh_max_freezes", 0600,
-				    powerpc_debugfs_root, NULL,
-				    &eeh_freeze_dbgfs_ops);
+		debugfs_create_file_unsafe("eeh_enable", 0600,
+					   powerpc_debugfs_root, NULL,
+					   &eeh_enable_dbgfs_ops);
+		debugfs_create_file_unsafe("eeh_max_freezes", 0600,
+					   powerpc_debugfs_root, NULL,
+					   &eeh_freeze_dbgfs_ops);
 #endif
 	}