From: Arik Nemtsov <arik@xxxxxxxxxx>
We get DMA alignment trouble if the beginning of the struct is
unaligned. Allocate memory and send it to FW.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
drivers/net/wireless/ti/wl18xx/main.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 23f100a3..aea2e32 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -772,16 +772,27 @@ out:
static int wl18xx_set_mac_and_phy(struct wl1271 *wl)
{
struct wl18xx_priv *priv = wl->priv;
+ struct wl18xx_mac_and_phy_params *params;
int ret;
+ params = kzalloc(sizeof(*params), GFP_KERNEL);
+ if (!params) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* use aligned memory for the copy to FW */
+ memcpy(params, &priv->conf.phy, sizeof(*params));
+
ret = wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]);
if (ret < 0)
goto out;
- ret = wlcore_write(wl, WL18XX_PHY_INIT_MEM_ADDR, (u8 *)&priv->conf.phy,
- sizeof(struct wl18xx_mac_and_phy_params), false);
+ ret = wlcore_write(wl, WL18XX_PHY_INIT_MEM_ADDR, params,
+ sizeof(*params), false);
out:
+ kfree(params);
return ret;
}
--
1.7.10
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
