This is a note to let you know that I've just added the patch titled
iwlwifi: dvm: run INIT firmware again upon .start()
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iwlwifi-dvm-run-init-firmware-again-upon-.start.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9c8928f5176766bec79f272bd47b7124e11cccbd Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Date: Mon, 16 Mar 2015 09:08:07 +0200
Subject: iwlwifi: dvm: run INIT firmware again upon .start()
From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
commit 9c8928f5176766bec79f272bd47b7124e11cccbd upstream.
The assumption before this patch was that we don't need to
run again the INIT firmware after the system booted. The
INIT firmware runs calibrations which impact the physical
layer's behavior.
Users reported that it may be helpful to run these
calibrations again every time the interface is brought up.
The penatly is minimal, since the calibrations run fast.
This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=94341
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/iwlwifi/dvm/dev.h | 1 -
drivers/net/wireless/iwlwifi/dvm/ucode.c | 5 -----
2 files changed, 6 deletions(-)
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -708,7 +708,6 @@ struct iwl_priv {
unsigned long reload_jiffies;
int reload_count;
bool ucode_loaded;
- bool init_ucode_run; /* Don't run init uCode again */
u8 plcp_delta_threshold;
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -418,9 +418,6 @@ int iwl_run_init_ucode(struct iwl_priv *
if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
return 0;
- if (priv->init_ucode_run)
- return 0;
-
iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
calib_complete, ARRAY_SIZE(calib_complete),
iwlagn_wait_calib, priv);
@@ -440,8 +437,6 @@ int iwl_run_init_ucode(struct iwl_priv *
*/
ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
UCODE_CALIB_TIMEOUT);
- if (!ret)
- priv->init_ucode_run = true;
goto out;
Patches currently in stable-queue which might be from emmanuel.grumbach@xxxxxxxxx are
queue-3.14/iwlwifi-dvm-run-init-firmware-again-upon-.start.patch
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