Commit 51cd525d authored Jul 26, 2010 by Arjan van de Ven Committed by Matthew Garrett Aug 03, 2010

Fix stack buffer size for IPC writev messages



The stack buffer for IPC messages was 16 bytes, limiting messages to a
size of 4 (each message is 32 bit).
However, the touch screen driver is trying to send messages of size 5....

(AC: Set to 20 bytes having checked the max size allowed)

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

parent 9dd3adeb

drivers/platform/x86/intel_scu_ipc.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -58,8 +58,8 @@

		#define IPC_BASE_ADDR 0xFF11C000 /* IPC1 base register address */
		#define IPC_MAX_ADDR 0x100 /* Maximum IPC regisers */
		#define IPC_WWBUF_SIZE 16 /* IPC Write buffer Size */
		#define IPC_RWBUF_SIZE 16 /* IPC Read buffer Size */
		#define IPC_WWBUF_SIZE 20 /* IPC Write buffer Size */
		#define IPC_RWBUF_SIZE 20 /* IPC Read buffer Size */
		#define IPC_I2C_BASE 0xFF12B000 /* I2C control register base address */
		#define IPC_I2C_MAX_ADDR 0x10 /* Maximum I2C regisers */