iwlwifi: support host command with copied data
In addition to the NOCOPY flag, add a DUP flag that
tells the transport to kmemdup() the buffer and free
it after the command completes.
Currently this is only supported for a single buffer
in a given command, but that could be extended if it
should be needed.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 137af4c..3f03f6e 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -452,6 +452,9 @@
/* The original command isn't needed any more */
kfree(txq->entries[cmd_index].copy_cmd);
txq->entries[cmd_index].copy_cmd = NULL;
+ /* nor is the duplicated part of the command */
+ kfree(txq->entries[cmd_index].free_buf);
+ txq->entries[cmd_index].free_buf = NULL;
}
/*