firmware_class: Log every success and failure against given device

The hundreds of users of request_firmware() have nearly as many
different log formats for reporting failures.  They also have only the
vaguest hint as to what went wrong; only firmware_class really knows
that.  Therefore, add specific log messages for the failure modes that
aren't currently logged.

In case of a driver that tries multiple names, this may result in the
impression that it failed to initialise.  Therefore, also log successes.

This makes many error messages in drivers redundant, which will be
removed in later patches.

This does not cover the case where we fall back to a user-mode helper
(which is no longer enabled in Debian).

NOTE: hw-detect will depend on the "firmware: failed to load %s (%d)\n"
format to detect missing firmware.

Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name firmware_class-log-every-success-and-failure.patch

diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c
index 7f732744f0d368ba38e4ebb062bc9cff5f1762d6..b85173dbf6023be6158e3ffbb270df05e277f595 100644 (file)
--- a/drivers/base/firmware_loader/fallback.c
+++ b/drivers/base/firmware_loader/fallback.c
@@ -609,7 +609,7 @@ static int fw_load_from_user_helper(struct firmware *firmware,
        if (opt_flags & FW_OPT_NOWAIT) {
                timeout = usermodehelper_read_lock_wait(timeout);
                if (!timeout) {
-                       dev_dbg(device, "firmware: %s loading timed out\n",
+                       dev_err(device, "firmware: %s loading timed out\n",
                                name);
                        return -EBUSY;
                }

diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 0943e7065e0eadbc1348b3bfdcf7aed15b495c62..70685f5120bbf24c92c9bca5daa794bc64d786df 100644 (file)
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -322,21 +322,22 @@ fw_get_filesystem_firmware(struct device *device, struct fw_priv *fw_priv)
                rc = kernel_read_file_from_path(path, &fw_priv->data, &size,
                                                msize, id);
                if (rc) {
-                       if (rc == -ENOENT)
-                               dev_dbg(device, "loading %s failed with error %d\n",
-                                        path, rc);
-                       else
-                               dev_warn(device, "loading %s failed with error %d\n",
-                                        path, rc);
+                       dev_dbg(device, "loading %s failed with error %d\n",
+                               path, rc);
                        continue;
                }
-               dev_dbg(device, "direct-loading %s\n", fw_priv->fw_name);
+               dev_info(device, "firmware: direct-loading firmware %s\n",
+                        fw_priv->fw_name);
                fw_priv->size = size;
                fw_state_done(fw_priv);
                break;
        }
        __putname(path);
 
+       if (rc)
+               dev_err(device, "firmware: failed to load %s (%d)\n",
+                       fw_priv->fw_name, rc);
+
        return rc;
 }