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6ce1b871db
android_kernel_xiaomi_sm8350/arch/arm
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Julia Lawall 6ce1b871db [ARM] eliminate NULL test and memset after alloc_bootmem 
As noted by Akinobu Mita in patch b1fceac2b9,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory.  Thus a NULL test or memset after calls to these
functions is unnecessary.

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E;
statement S;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\|alloc_bootmem_node\|alloc_bootmem_low_pages_node\|alloc_bootmem_pages_node\)(...)
... when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\|alloc_bootmem_node\|alloc_bootmem_low_pages_node\|alloc_bootmem_pages_node\)(...)
... when != E
- memset(E,0,E1);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-14 12:05:03 +00:00
..
boot Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2008-12-02 22:07:40 +00:00
common Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2008-12-02 22:07:40 +00:00
configs [ARM] DSM320: Update KS8695 defconfig to include DSM320 2008-12-14 11:34:48 +00:00
include/asm [ARM] dma: correct dma_supported() implementation 2008-12-13 09:12:07 +00:00
kernel Merge branch 'for-rmk-realview' of git://linux-arm.org/linux-2.6 into devel 2008-12-01 17:53:45 +00:00
lib Merge branch 'clps7500' into devel 2008-11-27 12:39:43 +00:00
mach-aaec2000 Merge branch 'clks' into devel 2008-11-30 17:46:52 +00:00
mach-at91 [ARM] 5319/1: AT91: support AT91CAP9 revC CPUs 2008-12-01 17:22:07 +00:00
mach-clps711x [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-davinci [ARM] davinci: asm/memory.h is not required for mach/vmalloc.h 2008-11-30 14:42:43 +00:00
mach-ebsa110 [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-ep93xx [ARM] 5343/1: ep93xx: include linux/i2c.h 2008-12-13 09:12:09 +00:00
mach-footbridge [ARM] netwinder: clean up GPIO naming 2008-12-13 09:12:07 +00:00
mach-h720x [ARM] Ensure that both MAX_DMA_ADDRESS and ISA_DMA_THRESHOLD are defined 2008-11-30 13:26:47 +00:00
mach-imx [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-integrator [ARM] integrator: parenthesize __virt_to_bus/__bus_to_virt argument 2008-11-30 11:44:11 +00:00
mach-iop13xx [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-iop32x [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-iop33x [ARM] fix missing includes for iop33x and sa1100_ir 2008-12-01 23:01:19 +00:00
mach-ixp4xx [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-ixp23xx [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-ixp2000 [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-kirkwood Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
mach-ks8695 [ARM] DSM320: Add support for the DSM320 2008-12-14 11:34:48 +00:00
mach-l7200 [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-lh7a40x Merge branch 'clks' into devel 2008-11-30 17:46:52 +00:00
mach-loki [ARM] Hide ISA DMA API when ISA_DMA_API is unset 2008-11-29 18:42:40 +00:00
mach-msm [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-mv78xx0 Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
mach-mx2 [ARM] MX2 pcm038: add 1-wire master support 2008-12-14 12:05:02 +00:00
mach-mx3 [ARM] pcm037: add 1wire support 2008-12-14 12:05:02 +00:00
mach-netx Merge branch 'clks' into devel 2008-11-30 17:46:52 +00:00
mach-ns9xxx [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-omap1 [ARM] Arrange for platforms to select appropriate CPU support 2008-11-27 12:38:00 +00:00
mach-omap2 ARM: OMAP: Fix compiler warnings in gpmc.c 2008-11-04 13:35:06 -08:00
mach-orion5x Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
mach-pnx4008 [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-pxa Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
mach-realview Merge branch 'for-rmk-realview' of git://linux-arm.org/linux-2.6 into devel 2008-12-01 17:53:45 +00:00
mach-rpc [ARM] give RiscPC a NR_IRQS definition and remove default 2008-11-29 19:14:31 +00:00
mach-s3c2400 [ARM] remove a common set of __virt_to_bus definitions 2008-11-28 15:36:49 +00:00
mach-s3c2410 Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00
mach-s3c2412 Merge branch 's3c-moves2' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2008-11-29 19:35:07 +00:00
mach-s3c2440 Merge branch 's3c-moves2' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2008-11-29 19:35:07 +00:00
mach-s3c2442 [ARM] Arrange for platforms to select appropriate CPU support 2008-11-27 12:38:00 +00:00
mach-s3c2443 Merge branch 's3c-moves2' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2008-11-29 19:35:07 +00:00
mach-sa1100 [ARM] 5336/1: Formatting/Whitespace cleanups in mach-sa1100 2008-12-01 17:22:45 +00:00
mach-shark [ARM] Rename ISA mach/dma.h header to mach/isa-dma.h 2008-11-29 18:49:55 +00:00
mach-versatile [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
mach-w90x900 [ARM] 5338/1: Add Nuvoton W90P910 Platform support 2008-12-03 21:57:16 +00:00
mm [ARM] eliminate NULL test and memset after alloc_bootmem 2008-12-14 12:05:03 +00:00
nwfpe
oprofile
plat-iop [ARM] iop: iop3xx needs registers mapped uncached+unbuffered 2008-11-09 11:18:36 +00:00
plat-mxc [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
plat-omap [ARM] Add a common typesafe __io implementation 2008-11-30 11:45:54 +00:00
plat-orion [ARM] Orion: add the option to support different ehci phy initialization 2008-12-04 01:28:14 -05:00
plat-s3c
plat-s3c24xx Merge branch 's3c-moves2' of git://aeryn.fluff.org.uk/bjdooks/linux into devel 2008-11-29 19:35:07 +00:00
tools [ARM] Update mach-types 2008-11-30 16:39:42 +00:00
vfp ARMv7: Branch over conditional undefined instructions in vfphw.S 2008-11-06 13:23:08 +00:00
Kconfig [ARM] KS8695: Fixup the KS8695 GPIO to be GPIOLIB 2008-12-14 11:34:47 +00:00
Kconfig-nommu
Kconfig.debug
Makefile Merge git://git.marvell.com/orion into devel 2008-12-13 09:12:51 +00:00