iwlwifi: dynamic allocate tx queue structure
Instead of always allocate the max number of tx queue structure,
use dynamic allocation based on the number of queues in device
configuration. With these changes, device does not have to allocate more
memory than the h/w can support.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index aa62357..028d4bf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -884,10 +884,14 @@
struct iwl_rx_queue *rxq = &priv->rxq;
char *buf;
int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
- (IWL_MAX_NUM_QUEUES * 32 * 8) + 400;
+ (priv->cfg->num_of_queues * 32 * 8) + 400;
const u8 *ptr;
ssize_t ret;
+ if (!priv->txq) {
+ IWL_ERR(priv, "txq not ready\n");
+ return -EAGAIN;
+ }
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate buffer\n");
@@ -979,8 +983,12 @@
int pos = 0;
int cnt;
int ret;
- const size_t bufsz = sizeof(char) * 60 * IWL_MAX_NUM_QUEUES;
+ const size_t bufsz = sizeof(char) * 60 * priv->cfg->num_of_queues;
+ if (!priv->txq) {
+ IWL_ERR(priv, "txq not ready\n");
+ return -EAGAIN;
+ }
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;