From ee9fa8f302dc1df10583fc043a91003e0a332d1b Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 2 Jan 2019 13:18:08 +0000 Subject: ACPI: APEI: EINJ: Use DEFINE_DEBUGFS_ATTRIBUTE for debugfs files Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE for debugfs files to make debugfs_simple_attr.cocci warnings go away. 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 Acked-by: Borislav Petkov Signed-off-by: Rafael J. Wysocki --- drivers/acpi/apei/einj.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c index fcccbfdbdd1a..6119da1aea4e 100644 --- a/drivers/acpi/apei/einj.c +++ b/drivers/acpi/apei/einj.c @@ -644,8 +644,8 @@ static int error_type_set(void *data, u64 val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(error_type_fops, error_type_get, - error_type_set, "0x%llx\n"); +DEFINE_DEBUGFS_ATTRIBUTE(error_type_fops, error_type_get, error_type_set, + "0x%llx\n"); static int error_inject_set(void *data, u64 val) { @@ -656,8 +656,7 @@ static int error_inject_set(void *data, u64 val) error_param3, error_param4); } -DEFINE_SIMPLE_ATTRIBUTE(error_inject_fops, NULL, - error_inject_set, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(error_inject_fops, NULL, error_inject_set, "%llu\n"); static int einj_check_table(struct acpi_table_einj *einj_tab) { @@ -718,12 +717,14 @@ static int __init einj_init(void) if (!fentry) goto err_cleanup; - fentry = debugfs_create_file("error_type", S_IRUSR | S_IWUSR, - einj_debug_dir, NULL, &error_type_fops); + fentry = debugfs_create_file_unsafe("error_type", 0600, + einj_debug_dir, NULL, + &error_type_fops); if (!fentry) goto err_cleanup; - fentry = debugfs_create_file("error_inject", S_IWUSR, - einj_debug_dir, NULL, &error_inject_fops); + fentry = debugfs_create_file_unsafe("error_inject", 0200, + einj_debug_dir, NULL, + &error_inject_fops); if (!fentry) goto err_cleanup; -- cgit v1.2.3