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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 <yuehaibing@huawei.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
YueHaibing 2019-01-02 13:18:08 +00:00 committed by Rafael J. Wysocki
parent f3355298fc
commit ee9fa8f302
1 changed files with 9 additions and 8 deletions
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17
drivers/acpi/apei/einj.c
View File

@ -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;