AuxXxilium/linux_dsm_epyc7002
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1660a26adb
linux_dsm_epyc7002/arch/powerpc/sysdev
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Alexey Dobriyan 9b130ad5bb treewide: make "nr_cpu_ids" unsigned 
First, number of CPUs can't be negative number.

Second, different signnnedness leads to suboptimal code in the following
cases:

1)
	kmalloc(nr_cpu_ids * sizeof(X));

"int" has to be sign extended to size_t.

2)
	while (loff_t *pos < nr_cpu_ids)

MOVSXD is 1 byte longed than the same MOV.

Other cases exist as well. Basically compiler is told that nr_cpu_ids
can't be negative which can't be deduced if it is "int".

Code savings on allyesconfig kernel: -3KB

	add/remove: 0/0 grow/shrink: 25/264 up/down: 261/-3631 (-3370)
	function                                     old     new   delta
	coretemp_cpu_online                          450     512     +62
	rcu_init_one                                1234    1272     +38
	pci_device_probe                             374     399     +25

				...

	pgdat_reclaimable_pages                      628     556     -72
	select_fallback_rq                           446     369     -77
	task_numa_find_cpu                          1923    1807    -116

Link: http://lkml.kernel.org/r/20170819114959.GA30580@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-08 18:26:48 -07:00
..
ge powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
xics powerpc/powernv: Fix oops on P9 DD1 in cause_ipi() 2017-04-26 23:28:12 +10:00
xive treewide: make "nr_cpu_ids" unsigned 2017-09-08 18:26:48 -07:00
6xx-suspend.S
axonram.c Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
cpm1.c powerpc/8xx: Adding support of IRQ in MPC8xx GPIO 2017-05-02 22:35:00 -05:00
cpm2_pic.c powerpc/cpm2: Use irq_set_handler_locked() 2015-09-16 15:43:10 +02:00
cpm2_pic.h
cpm2.c soc/fsl/qe: fix Oops on CPM1 (and likely CPM2) 2016-09-25 02:38:52 -05:00
cpm_common.c soc/fsl/qe: fix Oops on CPM1 (and likely CPM2) 2016-09-25 02:38:52 -05:00
dart_iommu.c dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
dart.h
dcr-low.S ppc: move exports to definitions 2016-08-07 23:50:09 -04:00
dcr.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
ehv_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_85xx_cache_ctlr.h
fsl_85xx_cache_sram.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
fsl_85xx_l2ctlr.c powerpc/85xx: Don't report SRAM to L2 cache fallback as error 2016-07-08 19:55:34 -05:00
fsl_gtm.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
fsl_lbc.c powerpc/fsl-lbc: use DEFINE_SPINLOCK() 2016-12-09 23:08:40 -06:00
fsl_mpic_err.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
fsl_mpic_timer_wakeup.c
fsl_msi.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
fsl_msi.h powerpc/85xx: workaround for chips with MSI hardware errata 2015-03-23 19:51:18 -05:00
fsl_pci.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
fsl_pci.h EDAC, mpc85xx: Make mpc85xx-pci-edac a platform device 2015-12-11 16:56:16 +01:00
fsl_pmc.c powerpc/fsl_pmc: use builtin_platform_driver 2016-12-04 19:51:44 -06:00
fsl_rcpm.c powerpc/rcpm: Fix build break when SMP=n 2016-03-16 15:22:32 +11:00
fsl_rio.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
fsl_rio.h rapidio: add global inbound port write interfaces 2016-03-22 15:36:02 -07:00
fsl_rmu.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
fsl_soc.c powerpc/cpm1: link to CONFIG_CPM1 instead of CONFIG_8xx 2017-08-10 23:32:05 +10:00
fsl_soc.h powerpc/cpm1: link to CONFIG_CPM1 instead of CONFIG_8xx 2017-08-10 23:32:05 +10:00
grackle.c
i8259.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
indirect_pci.c
ipic.c powerpc/ipic: Support edge on IRQ0 2017-07-24 21:20:31 +10:00
ipic.h
Kconfig powerpc/xive: Native exploitation of the XIVE interrupt controller 2017-04-10 21:41:34 +10:00
Makefile powerpc/8xx: Move mpc8xx_pic.c from sysdev to platform/8xx 2017-08-10 23:32:07 +10:00
micropatch.c
mmio_nvram.c powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
mpc5xxx_clocks.c powerpc/mpc5xxx: Use of_get_next_parent to simplify code 2015-10-15 20:32:01 +11:00
mpic_msgr.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mpic_msi.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mpic_timer.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mpic_u3msi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mpic.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mpic.h powerpc/pasemi: Only the build the pasemi MSI code for PASEMI=y 2015-05-11 19:55:25 +10:00
msi_bitmap.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mv64x60_dev.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mv64x60_pci.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
mv64x60_pic.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mv64x60_udbg.c
mv64x60.h
of_rtc.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pmi.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
rtc_cmos_setup.c
scom.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
simple_gpio.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
simple_gpio.h
tsi108_dev.c
tsi108_pci.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
udbg_memcons.c
xilinx_intc.c powerpc/virtex: Use generic xilinx irqchip driver 2016-11-29 09:14:50 +00:00
xilinx_pci.c