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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2010-03-14 10:49:18 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 20:37:30 +0400
commitbcb9bd18e397eabe14b45f4dc4283359ab148d79 (patch)
tree0fbb55b4e90a02824f8dc7aaffc3c26a2f0ebfa3 /drivers/base
parent673fae90d5ee4ae2b6403f9d45af7ff640f06a60 (diff)
downloadlinux-bcb9bd18e397eabe14b45f4dc4283359ab148d79.tar.xz
firmware loader: split out builtin firmware handling
Split builtin firmware handling into separate functions to clean up the main body of code. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/firmware_class.c76
1 files changed, 50 insertions, 26 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index d351e773f439..c378a355bed4 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -27,6 +27,52 @@ MODULE_AUTHOR("Manuel Estrada Sainz");
MODULE_DESCRIPTION("Multi purpose firmware loading support");
MODULE_LICENSE("GPL");
+/* Builtin firmware support */
+
+#ifdef CONFIG_FW_LOADER
+
+extern struct builtin_fw __start_builtin_fw[];
+extern struct builtin_fw __end_builtin_fw[];
+
+static bool fw_get_builtin_firmware(struct firmware *fw, const char *name)
+{
+ struct builtin_fw *b_fw;
+
+ for (b_fw = __start_builtin_fw; b_fw != __end_builtin_fw; b_fw++) {
+ if (strcmp(name, b_fw->name) == 0) {
+ fw->size = b_fw->size;
+ fw->data = b_fw->data;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static bool fw_is_builtin_firmware(const struct firmware *fw)
+{
+ struct builtin_fw *b_fw;
+
+ for (b_fw = __start_builtin_fw; b_fw != __end_builtin_fw; b_fw++)
+ if (fw->data == b_fw->data)
+ return true;
+
+ return false;
+}
+
+#else /* Module case - no builtin firmware support */
+
+static inline bool fw_get_builtin_firmware(struct firmware *fw, const char *name)
+{
+ return false;
+}
+
+static inline bool fw_is_builtin_firmware(const struct firmware *fw)
+{
+ return false;
+}
+#endif
+
enum {
FW_STATUS_LOADING,
FW_STATUS_DONE,
@@ -53,14 +99,6 @@ struct firmware_priv {
bool nowait;
};
-#ifdef CONFIG_FW_LOADER
-extern struct builtin_fw __start_builtin_fw[];
-extern struct builtin_fw __end_builtin_fw[];
-#else /* Module case. Avoid ifdefs later; it'll all optimise out */
-static struct builtin_fw *__start_builtin_fw;
-static struct builtin_fw *__end_builtin_fw;
-#endif
-
static void
fw_load_abort(struct firmware_priv *fw_priv)
{
@@ -497,7 +535,6 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
struct device *f_dev;
struct firmware_priv *fw_priv;
struct firmware *firmware;
- struct builtin_fw *builtin;
int retval;
if (!firmware_p)
@@ -511,13 +548,8 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
goto out;
}
- for (builtin = __start_builtin_fw; builtin != __end_builtin_fw;
- builtin++) {
- if (strcmp(name, builtin->name))
- continue;
+ if (fw_get_builtin_firmware(firmware, name)) {
dev_dbg(device, "firmware: using built-in firmware %s\n", name);
- firmware->size = builtin->size;
- firmware->data = builtin->data;
return 0;
}
@@ -589,19 +621,11 @@ request_firmware(const struct firmware **firmware_p, const char *name,
* release_firmware: - release the resource associated with a firmware image
* @fw: firmware resource to release
**/
-void
-release_firmware(const struct firmware *fw)
+void release_firmware(const struct firmware *fw)
{
- struct builtin_fw *builtin;
-
if (fw) {
- for (builtin = __start_builtin_fw; builtin != __end_builtin_fw;
- builtin++) {
- if (fw->data == builtin->data)
- goto free_fw;
- }
- firmware_free_data(fw);
- free_fw:
+ if (!fw_is_builtin_firmware(fw))
+ firmware_free_data(fw);
kfree(fw);
}
}