Messages in this thread Patch in this message | | | Date | Wed, 28 Sep 2011 15:03:22 -0700 | From | Greg KH <> | Subject | [238/244] iwlegacy: fix command queue timeout |
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3.0-stable review patch. If anyone has any objections, please let us know.
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From: Stanislaw Gruszka <sgruszka@redhat.com>
commit 2e2a41d6ca07d1b2aa67015c35fd80701c98e867 upstream.
iwlegacy version of fix:
commit 282cdb325aea4ebbc42ce753b47cc96145eb54bc Author: Johannes Berg <johannes.berg@intel.com> Date: Mon Sep 12 12:09:10 2011 -0700
iwlagn: fix command queue timeout
If the command queue is constantly busy, which can happen in P2P, the hangcheck timer will frequently find a command in it and will eventually reset the device because nothing sets the timestamp for this queue when commands are processed.
Fix this by setting the timestamp when a command completes.
iwlegacy does not support P2P, but this patch fix possible unneeded hardware resets, hence is needed.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/net/wireless/iwlegacy/iwl-tx.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/net/wireless/iwlegacy/iwl-tx.c +++ b/drivers/net/wireless/iwlegacy/iwl-tx.c @@ -625,6 +625,8 @@ iwl_legacy_tx_cmd_complete(struct iwl_pr cmd = txq->cmd[cmd_index]; meta = &txq->meta[cmd_index]; + txq->time_stamp = jiffies; + pci_unmap_single(priv->pci_dev, dma_unmap_addr(meta, mapping), dma_unmap_len(meta, len),
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