On 02/08/2012 03:45 PM, Ben Hutchings wrote:
On Wed, 2012-02-08 at 14:08 -0700, Tim Gardner wrote:
The firmware file size check does not use the
correct limit.
Cc: Larry Finger<Larry.Finger@xxxxxxxxxxxx>
Cc: Chaoming Li<chaoming_li@xxxxxxxxxxxxxx>
Cc: John W. Linville<linville@xxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Tim Gardner<tim.gardner@xxxxxxxxxxxxx>
---
drivers/net/wireless/rtlwifi/rtl8192se/fw.h | 3 ++-
drivers/net/wireless/rtlwifi/rtl8192se/sw.c | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/fw.h b/drivers/net/wireless/rtlwifi/rtl8192se/fw.h
index babe85d..5c377fc 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/fw.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/fw.h
@@ -30,6 +30,7 @@
#define __REALTEK_FIRMWARE92S_H__
#define RTL8190_MAX_FIRMWARE_CODE_SIZE 64000
+#define RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE 164000
The current size of the firmware is 88,856, thus the value of
RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE should be set to 90,000 to allow for some
growth in the size of the firmware. Using 164,000 wastes a lot of space.
#define RTL8190_CPU_START_OFFSET 0x80
/* Firmware Local buffer size. 64k */
#define MAX_FIRMWARE_CODE_SIZE 0xFF00
@@ -217,7 +218,7 @@ struct rt_firmware {
u8 fw_emem[RTL8190_MAX_FIRMWARE_CODE_SIZE];
u32 fw_imem_len;
u32 fw_emem_len;
- u8 sz_fw_tmpbuffer[164000];
+ u8 sz_fw_tmpbuffer[RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE];
u32 sz_fw_tmpbufferlen;
u16 cmdpacket_fragthresold;
};
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c
index ca38dd9..155da0a 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c
@@ -105,7 +105,7 @@ static void rtl92se_fw_cb(const struct firmware *firmware, void *context)
rtlpriv->max_fw_size = 0;
return;
}
- if (firmware->size> rtlpriv->max_fw_size) {
+ if (firmware->size>= RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE) {
Do not change this one. rtlpriv->max_fw_size has been set to sizeof(struct
rt_firmware), which is correct.
This appears to reject a firmware blob which is exactly the maximum
size, which looks wrong. Also doesn't this make the max_fw_size field
redundant?
I commented on this one earlier, but to reiterate - max_fw_size is not redundant.
Larry
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