Patch "wlcore: fix 64K page support" has been added to the 4.4-stable tree

Patch "wlcore: fix 64K page support" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    wlcore: fix 64K page support

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     wlcore-fix-64k-page-support.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 4a4274bf2dbbd1c7a45be0c89a1687c9d2eef4a0 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 11 May 2017 13:52:09 +0200
Subject: wlcore: fix 64K page support

From: Arnd Bergmann <arnd@arndb.de>

commit 4a4274bf2dbbd1c7a45be0c89a1687c9d2eef4a0 upstream.

In the stable linux-3.16 branch, I ran into a warning in the
wlcore driver:

drivers/net/wireless/ti/wlcore/spi.c: In function 'wl12xx_spi_raw_write':
drivers/net/wireless/ti/wlcore/spi.c:315:1: error: the frame size of 12848 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]

Newer kernels no longer show the warning, but the bug is still there,
as the allocation is based on the CPU page size rather than the
actual capabilities of the hardware.

This replaces the PAGE_SIZE macro with the SZ_4K macro, i.e. 4096 bytes
per buffer.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/ti/wlcore/spi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -71,7 +71,7 @@
  * only support SPI for 12xx - this code should be reworked when 18xx
  * support is introduced
  */
-#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+#define SPI_AGGR_BUFFER_SIZE (4 * SZ_4K)
 
 /* Maximum number of SPI write chunks */
 #define WSPI_MAX_NUM_OF_CHUNKS \


Patches currently in stable-queue which might be from arnd@arndb.de are

queue-4.4/ir-core-fix-gcc-7-warning-on-bool-arithmetic.patch
queue-4.4/wlcore-fix-64k-page-support.patch