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linux/arch/mips/include/asm/mach-cavium-octeon
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Aaro Koskinen 3312eca519 MIPS: Octeon: mangle-port: fix build failure with VDSO code 
Commit 1685ddbe35 ("MIPS: Octeon: Changes to support readq()/writeq()
usage.") added bitwise shift operations that assume that unsigned long
is always 64-bits. This broke the build of VDSO code, as it gets compiled
also in "faked" 32-bit mode. Althought the failing inline functions are
never executed in 32-bit mode, they still need to pass the compilation.
Fix by using 64-bit types explicitly.

The patch fixes the following build failure:

  CC      arch/mips/vdso/gettimeofday-o32.o
In file included from los/git/devel/linux/arch/mips/include/asm/io.h:32:0,
                 from los/git/devel/linux/arch/mips/include/asm/page.h:194,
                 from los/git/devel/linux/arch/mips/vdso/vdso.h:26,
                 from los/git/devel/linux/arch/mips/vdso/gettimeofday.c:11:
los/git/devel/linux/arch/mips/include/asm/mach-cavium-octeon/mangle-port.h: In function '__should_swizzle_bits':
los/git/devel/linux/arch/mips/include/asm/mach-cavium-octeon/mangle-port.h:19:40: error: right shift count >= width of type [-Werror=shift-count-overflow]
  unsigned long did = ((unsigned long)a >> 40) & 0xff;
                                        ^~

Fixes: 1685ddbe35 ("MIPS: Octeon: Changes to support readq()/writeq() usage.")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Steven J. Hill <steven.hill@cavium.com>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14039/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-09-19 17:21:37 +02:00
..
cpu-feature-overrides.h MIPS: Clean up RDHWR handling 2016-06-15 23:58:25 +02:00
dma-coherence.h MIPS: DMA: Implement platform hook to perform post-DMA cache flushes. 2015-04-01 17:22:01 +02:00
irq.h MIPS: Octeon: Remove forced mappings of USB interrupts. 2016-07-28 12:01:06 +02:00
kernel-entry-init.h MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
mangle-port.h MIPS: Octeon: mangle-port: fix build failure with VDSO code 2016-09-19 17:21:37 +02:00
spaces.h MIPS/OCTEON: Override default address space layout. 2013-06-21 18:07:02 +02:00
war.h MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX 2015-02-20 15:31:27 +01:00