wl1251: allocate space for firmware with vmalloc()
Earlier firmware was stored to a memory area allocated with kmalloc()
but finding a a contiguous area of memory long enough for the firmware is
very difficult in certain cases. better to allocate the memory for firmware
with vmalloc() instead and use a small buffer for DMA transfers.
Thanks to Eero Tamminen for the idea.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Vidhya Govindan <vidhya.govindan@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c
index b5e3bdb..1f4c238 100644
--- a/drivers/net/wireless/wl12xx/wl1251_main.c
+++ b/drivers/net/wireless/wl12xx/wl1251_main.c
@@ -28,6 +28,7 @@
#include <linux/irq.h>
#include <linux/crc32.h>
#include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
#include "wl1251.h"
#include "wl12xx_80211.h"
@@ -83,7 +84,7 @@
}
wl->fw_len = fw->size;
- wl->fw = kmalloc(wl->fw_len, GFP_KERNEL);
+ wl->fw = vmalloc(wl->fw_len);
if (!wl->fw) {
wl1251_error("could not allocate memory for the firmware");
@@ -1427,7 +1428,7 @@
kfree(wl->target_mem_map);
kfree(wl->data_path);
- kfree(wl->fw);
+ vfree(wl->fw);
wl->fw = NULL;
kfree(wl->nvs);
wl->nvs = NULL;