[PATCH net-next 7/9] firmware_loader: Expand Firmware upload error codes

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No error code are available to signal an invalid firmware content.
Drivers that can check the firmware content validity can not return this
specific failure to the user-space

Expand the firmware error code with an additional code:
- "firmware invalid" code which can be used when the provided firmware
  is invalid

Signed-off-by: Kory Maincent <kory.maincent@xxxxxxxxxxx>
---
 drivers/base/firmware_loader/sysfs_upload.c | 1 +
 include/linux/firmware.h                    | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/base/firmware_loader/sysfs_upload.c b/drivers/base/firmware_loader/sysfs_upload.c
index a0af8f5f13d8..829270067d16 100644
--- a/drivers/base/firmware_loader/sysfs_upload.c
+++ b/drivers/base/firmware_loader/sysfs_upload.c
@@ -27,6 +27,7 @@ static const char * const fw_upload_err_str[] = {
 	[FW_UPLOAD_ERR_INVALID_SIZE] = "invalid-file-size",
 	[FW_UPLOAD_ERR_RW_ERROR]     = "read-write-error",
 	[FW_UPLOAD_ERR_WEAROUT]	     = "flash-wearout",
+	[FW_UPLOAD_ERR_FW_INVALID]   = "firmware-invalid",
 };
 
 static const char *fw_upload_progress(struct device *dev,
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index de7fea3bca51..0311858b46ce 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -27,6 +27,7 @@ struct firmware {
  * @FW_UPLOAD_ERR_INVALID_SIZE: invalid firmware image size
  * @FW_UPLOAD_ERR_RW_ERROR: read or write to HW failed, see kernel log
  * @FW_UPLOAD_ERR_WEAROUT: FLASH device is approaching wear-out, wait & retry
+ * @FW_UPLOAD_ERR_FW_INVALID: invalid firmware file
  * @FW_UPLOAD_ERR_MAX: Maximum error code marker
  */
 enum fw_upload_err {
@@ -38,6 +39,7 @@ enum fw_upload_err {
 	FW_UPLOAD_ERR_INVALID_SIZE,
 	FW_UPLOAD_ERR_RW_ERROR,
 	FW_UPLOAD_ERR_WEAROUT,
+	FW_UPLOAD_ERR_FW_INVALID,
 	FW_UPLOAD_ERR_MAX
 };
 

-- 
2.25.1





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