David Daney 0c81157b46 MIPS: Fix logic errors in bitops.c ...

commit 92d11594f6 (MIPS: Remove irqflags.h dependency from bitops.h)
factored some of the bitops code out into a separate file
(arch/mips/lib/bitops.c).  Unfortunately the logic converting a bit
mask into a boolean result was lost in some of the functions.  We had:

   int res;
   unsigned long shifted_result_bit;
   .
   .
   .
   res = shifted_result_bit;
   return res;

Which truncates off the high 32 bits (thus yielding an incorrect
value) on 64-bit systems.

The manifestation of this is that a non-SMP 64-bit kernel will not
boot as the bitmap operations in bootmem.c are all screwed up.

Signed-off-by: David Daney <[email protected]>
Cc:  [email protected]
Cc: Jim Quinlan <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/4965/
Signed-off-by: Ralf Baechle <[email protected]>

2013-03-12 18:57:47 +01:00

..

ashldi3.c

…

ashrdi3.c

…

bitops.c

MIPS: Fix logic errors in bitops.c

2013-03-12 18:57:47 +01:00

cmpdi2.c

…

csum_partial.S

MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S

2013-03-12 10:18:18 +01:00

delay.c

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

dump_tlb.c

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

iomap-pci.c

mips: use the the PCI controller's io_map_base

2012-01-31 23:20:30 +02:00

iomap.c

…

libgcc.h

…

lshrdi3.c

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Makefile

MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus

2012-11-09 10:59:21 +01:00

memcpy.S

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

memset.S

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

mips-atomic.c

MIPS: Fix crash that occurs when function tracing is enabled

2012-11-23 18:44:38 +01:00

r3k_dump_tlb.c

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

strlen_user.S

…

strncpy_user.S

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

strnlen_user.S

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

ucmpdi2.c

…

uncached.c

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00