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wlcore: fix 64K page support

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commit 4a4274bf2d 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>
This commit is contained in:
Arnd Bergmann 2017-05-11 13:52:09 +02:00 • committed by Greg Kroah-Hartman
commit c2d4d4fa32
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ti/wlcore/spi.c
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@ -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 \