firmware: provide stubs for the FW_LOADER=n case
libsas has a case where it uses the firmware loader to provide services,
but doesn't want to select it all the time. This currently causes a
compile failure in libsas if FW_LOADER=n. Fix this by providing error
stubs for the firmware loader API in the FW_LOADER=n case.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index 33d8f20..4d10c73 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -10,7 +10,10 @@
size_t size;
u8 *data;
};
+
struct device;
+
+#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
int request_firmware(const struct firmware **fw, const char *name,
struct device *device);
int request_firmware_nowait(
@@ -19,4 +22,24 @@
void (*cont)(const struct firmware *fw, void *context));
void release_firmware(const struct firmware *fw);
+#else
+static inline int request_firmware(const struct firmware **fw,
+ const char *name,
+ struct device *device)
+{
+ return -EINVAL;
+}
+static inline int request_firmware_nowait(
+ struct module *module, int uevent,
+ const char *name, struct device *device, void *context,
+ void (*cont)(const struct firmware *fw, void *context))
+{
+ return -EINVAL;
+}
+
+static inline void release_firmware(const struct firmware *fw)
+{
+}
+#endif
+
#endif