ARM: iop: don't use using 64-bit DMA masks
authorArnd Bergmann <arnd@arndb.de>
Mon, 25 Mar 2019 15:50:43 +0000 (16:50 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 8 May 2019 05:21:51 +0000 (07:21 +0200)
commit14f3c36b47ed994b58b033e2d574b520675e6ef8
treee0e3c5f5750c4b8c118d0a0bdae46c5b62db709e
parent39839f3ec616718d01bb2939f73cb3dc8b468754
ARM: iop: don't use using 64-bit DMA masks

[ Upstream commit 2125801ccce19249708ca3245d48998e70569ab8 ]

clang warns about statically defined DMA masks from the DMA_BIT_MASK
macro with length 64:

 arch/arm/mach-iop13xx/setup.c:303:35: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
 static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(64);
                                  ^~~~~~~~~~~~~~~~
 include/linux/dma-mapping.h:141:54: note: expanded from macro 'DMA_BIT_MASK'
 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
                                                      ^ ~~~

The ones in iop shouldn't really be 64 bit masks, so changing them
to what the driver can support avoids the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm/mach-iop13xx/setup.c
arch/arm/mach-iop13xx/tpmi.c
arch/arm/plat-iop/adma.c