wl1271: Use vmalloc to allocate memory for firmware

Use vmalloc to allocate memory for the firmware image, and use a smaller
linear buffer for the actual transfer of the firmware to the chipset.

This patch is an adaptation of a similar patch for wl1251 by Kalle Valo.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 09fe9686977a..d22de23f0bce 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -30,6 +30,7 @@
 #include <linux/spi/spi.h>
 #include <linux/crc32.h>
 #include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
 #include <linux/spi/wl12xx.h>
 
 #include "wl1271.h"
@@ -231,7 +232,7 @@ static int wl1271_fetch_firmware(struct wl1271 *wl)
         }
 
         wl->fw_len = fw->size;
-        wl->fw = kmalloc(wl->fw_len, GFP_KERNEL);
+        wl->fw = vmalloc(wl->fw_len);
 
         if (!wl->fw) {
                 wl1271_error("could not allocate memory for the firmware");
@@ -1484,7 +1485,7 @@ static int __devexit wl1271_remove(struct spi_device *spi)
         platform_device_unregister(&wl1271_device);
         free_irq(wl->irq, wl);
         kfree(wl->target_mem_map);
-        kfree(wl->fw);
+        vfree(wl->fw);
         wl->fw = NULL;
         kfree(wl->nvs);
         wl->nvs = NULL;