wil6210: fix debugfs_simple_attr.cocci warnings
authorYueHaibing <yuehaibing@huawei.com>
Fri, 5 Oct 2018 11:07:26 +0000 (11:07 +0000)
committerKalle Valo <kvalo@codeaurora.org>
Sat, 13 Oct 2018 17:28:44 +0000 (20:28 +0300)
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>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/ath/wil6210/debugfs.c

index 66ffae2..aa50813 100644 (file)
@@ -416,8 +416,8 @@ static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
        return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
-                       wil_debugfs_iomem_x32_set, "0x%08llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
+                        wil_debugfs_iomem_x32_set, "0x%08llx\n");
 
 static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
                                                   umode_t mode,
@@ -432,7 +432,8 @@ static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
        data->wil = wil;
        data->offset = value;
 
-       file = debugfs_create_file(name, mode, parent, data, &fops_iomem_x32);
+       file = debugfs_create_file_unsafe(name, mode, parent, data,
+                                         &fops_iomem_x32);
        if (!IS_ERR_OR_NULL(file))
                wil->dbg_data.iomem_data_count++;
 
@@ -451,14 +452,15 @@ static int wil_debugfs_ulong_get(void *data, u64 *val)
        return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
-                       wil_debugfs_ulong_set, "0x%llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
+                        wil_debugfs_ulong_set, "0x%llx\n");
 
 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode,
                                               struct dentry *parent,
                                               ulong *value)
 {
-       return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong);
+       return debugfs_create_file_unsafe(name, mode, parent, value,
+                                         &wil_fops_ulong);
 }
 
 /**