Zubair Lutfullah Kakakhel 30fa0530ff MIPS: CMA: Do not reserve memory if not required ...

Even if CMA is disabled, the for_each_memblock macro expands
to run reserve_bootmem once. Hence, reserve_bootmem attempts to
reserve location 0 of size 0.

Add a check to avoid that.

Issue was highlighted during testing with EVA enabled.
resrve_bootmem used to exit gracefully when passed arguments to
reserve 0 size location at 0 without EVA.

But with EVA enabled, macros would point to different addresses
and the code would trigger a BUG.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Tested-by: Markos Chandras <markos.chandras@imgtec.com>
Tested-by: Huacai Chen <chenhc@lemote.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8231/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2014-10-29 02:59:25 +01:00

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alpha

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

arc

Merge tag 'remove-weak-declarations' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

2014-10-23 15:04:27 -07:00

arm

Merge tag 'armsoc-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2014-10-26 11:35:51 -07:00

arm64

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2014-10-24 12:48:04 -07:00

avr32

Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

2014-10-18 18:11:04 -07:00

blackfin

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

c6x

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cris

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-13 16:23:15 +02:00

frv

frv: remove unused declarations of __start___ex_table and __stop___ex_table

2014-10-14 02:18:28 +02:00

hexagon

Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-13 15:48:00 +02:00

ia64

Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-23 14:45:09 -07:00

m32r

Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-13 15:48:00 +02:00

m68k

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

2014-10-14 03:51:22 +02:00

metag

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

microblaze

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

mips

MIPS: CMA: Do not reserve memory if not required

2014-10-29 02:59:25 +01:00

mn10300

Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-13 15:48:00 +02:00

openrisc

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

parisc

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

powerpc

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

2014-10-21 07:48:56 -07:00

s390

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2014-10-21 07:47:54 -07:00

score

score: use Kbuild logic to include <asm-generic/sections.h>

2014-10-09 22:25:46 -04:00

sh

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

sparc

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2014-10-24 12:45:47 -07:00

tile

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

um

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

unicore32

nosave: consolidate __nosave_{begin,end} in <asm/sections.h>

2014-10-09 22:26:04 -04:00

x86

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2014-10-24 12:42:55 -07:00

xtensa

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

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