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linux-st/arch/mips/include/asm
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Steven Rostedt (Red Hat) b35f549df1 syscalls: Remove start and number from syscall_get_arguments() args 
At Linux Plumbers, Andy Lutomirski approached me and pointed out that the
function call syscall_get_arguments() implemented in x86 was horribly
written and not optimized for the standard case of passing in 0 and 6 for
the starting index and the number of system calls to get. When looking at
all the users of this function, I discovered that all instances pass in only
0 and 6 for these arguments. Instead of having this function handle
different cases that are never used, simply rewrite it to return the first 6
arguments of a system call.

This should help out the performance of tracing system calls by ptrace,
ftrace and perf.

Link: http://lkml.kernel.org/r/20161107213233.754809394@goodmis.org

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Dave Martin <dave.martin@arm.com>
Cc: "Dmitry V. Levin" <ldv@altlinux.org>
Cc: x86@kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Max Filippov <jcmvbkbc@gmail.com> # For xtensa changes
Acked-by: Will Deacon <will.deacon@arm.com> # For the arm64 bits
Reviewed-by: Thomas Gleixner <tglx@linutronix.de> # for x86
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-04-05 09:26:43 -04:00
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dec
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emma
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fw
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ip32
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lasat
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mach-ar7
MIPS: Make (UN)CAC_ADDR() PHYS_OFFSET-agnostic
2018-07-30 10:27:20 -07:00
mach-ath25
MIPS: ath25: use generic dma noncoherent ops
2018-06-24 09:27:27 -07:00
mach-ath79
Merge tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2019-03-05 11:28:25 -08:00
mach-au1x00
MIPS: Alchemy: update cpu-feature-overrides
2018-12-23 07:58:26 -08:00
mach-bcm47xx
…
mach-bcm63xx
MIPS: BCM63XX: drop unused and broken DSP platform device
2018-12-31 07:12:35 -08:00
mach-bmips
MIPS: bmips: use generic dma noncoherent ops
2018-06-24 09:27:27 -07:00
mach-cavium-octeon
MIPS: Octeon: move swiotlb declarations out of dma-coherence.h
2018-06-24 09:26:03 -07:00
mach-cobalt
…
mach-db1x00
…
mach-dec
…
mach-emma2rh
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mach-generic
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
2018-11-21 19:54:59 -08:00
mach-ip22
…
mach-ip27
MIPS: SGI-IP27: rework HUB interrupts
2019-02-19 12:46:03 -08:00
mach-ip28
…
mach-ip32
MIPS: IP32: use generic dma noncoherent ops
2018-06-24 09:27:27 -07:00
mach-jazz
MIPS: jazz: split dma mapping operations from dma-default
2018-06-24 09:27:27 -07:00
mach-jz4740
mmc: jz4740: Use GPIO descriptor for power
2018-12-17 08:26:24 +01:00
mach-lantiq
MIPS: lantiq: Use CP0_LEGACY_COMPARE_IRQ
2019-01-07 13:38:35 -08:00
mach-lasat
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mach-loongson32
MIPS: Loongson32: Remove unused platform devices
2019-01-22 11:17:21 -08:00
mach-loongson64
Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-12-29 13:40:29 -08:00
mach-malta
…
mach-netlogic
…
mach-paravirt
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mach-pic32
MIPS: Make (UN)CAC_ADDR() PHYS_OFFSET-agnostic
2018-07-30 10:27:20 -07:00
mach-pistachio
…
mach-pmcs-msp71xx
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mach-pnx833x
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mach-ralink
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mach-rc32434
ata: rb532_cf: Convert to use GPIO descriptors
2018-12-04 17:15:25 -07:00
mach-rm
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mach-sibyte
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mach-tx39xx
…
mach-tx49xx
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mach-vr41xx
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mach-xilfpga
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mips-boards
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netlogic
MIPS: netlogic: xlr: Remove erroneous check in nlm_fmn_send()
2018-08-08 09:48:32 -07:00
octeon
MIPS: OCTEON: program rx/tx-delay always from DT
2019-02-07 15:22:38 -08:00
pci
MIPS: SGI-IP27: rework HUB interrupts
2019-02-19 12:46:03 -08:00
sgi
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sibyte
…
sn
MIPS: SGI-IP27: clean up bridge access and header files
2019-02-19 12:46:02 -08:00
txx9
Merge tag 'mtd/for-4.19' of git://git.infradead.org/linux-mtd
2018-08-14 10:57:44 -07:00
vr41xx
gpio: vr41xx: Delete vr41xx_gpio_pullupdown() callback
2018-09-17 10:55:24 -07:00
xtalk
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abi.h
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addrspace.h
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amon.h
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arch_hweight.h
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asm-eva.h
MIPS: Add kernel_pref & user_pref helpers
2018-10-15 23:11:13 -07:00
asm-offsets.h
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asm-prototypes.h
MIPS: Export tlbmiss_handler_setup_pgd near its definition
2018-08-10 17:27:51 -07:00
asm.h
MIPS: Remove unused PREF, PREFE & PREFX macros
2018-10-15 23:11:14 -07:00
asmmacro-32.h
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asmmacro-64.h
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asmmacro.h
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atomic.h
MIPS: Loongson: Introduce and use loongson_llsc_mb()
2019-02-04 10:53:34 -08:00
barrier.h
Merge tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2019-03-05 11:28:25 -08:00
bcache.h
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bitops.h
MIPS: Loongson: Introduce and use loongson_llsc_mb()
2019-02-04 10:53:34 -08:00
bitrev.h
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bmips-spaces.h
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bmips.h
MIPS: bmips: use generic dma noncoherent ops
2018-06-24 09:27:27 -07:00
bootinfo.h
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branch.h
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break.h
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bug.h
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bugs.h
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cache.h
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cacheflush.h
MIPS: Delete unused flush_cache_sigtramp()
2019-02-07 12:59:45 -08:00
cacheops.h
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cdmm.h
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cevt-r4k.h
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checksum.h
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
clock.h
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clocksource.h
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cmp.h
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cmpxchg.h
MIPS: Fix set_pte() for Netlogic XLR using cmpxchg64()
2019-02-06 14:59:24 -08:00
compat-signal.h
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compat.h
asm-generic: Move common compat types to asm-generic/compat.h
2018-08-29 15:42:20 +02:00
compiler.h
MIPS: Simplify GCC_OFF_SMALL_ASM definition
2018-11-07 16:26:42 -08:00
cop2.h
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cpu-features.h
MIPS: MemoryMapID (MMID) Support
2019-02-04 10:56:41 -08:00
cpu-info.h
MIPS: Expand MIPS32 ASIDs to 64 bits
2018-12-05 14:46:44 -08:00
cpu-type.h
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cpu.h
MIPS: MemoryMapID (MMID) Support
2019-02-04 10:56:41 -08:00
cpufeature.h
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debug.h
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delay.h
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div64.h
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dma-coherence.h
dma-mapping: move the dma_coherent flag to struct device
2018-09-20 09:01:15 +02:00
dma-direct.h
MIPS: consolidate the swiotlb implementations
2018-06-24 09:26:03 -07:00
dma-mapping.h
dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability
2019-02-13 19:12:33 +01:00
dma.h
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ds1287.h
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dsemul.h
MIPS: Don't compile math-emu when CONFIG_MIPS_FP_SUPPORT=n
2018-11-09 10:23:18 -08:00
dsp.h
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edac.h
MIPS: Avoid using .set mips0 to restore ISA
2018-11-09 10:23:19 -08:00
elf.h
MIPS: Avoid FP ELF checks when CONFIG_MIPS_FP_SUPPORT=n
2018-11-09 10:23:18 -08:00
errno.h
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eva.h
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exec.h
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extable.h
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fb.h
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fixmap.h
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floppy.h
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fpregdef.h
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fpu_emulator.h
MIPS: Simplify FP context initialization
2018-11-09 10:23:13 -08:00
fpu.h
MIPS: Stub asm/fpu.h functions
2018-11-09 10:23:15 -08:00
ftrace.h
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futex.h
MIPS: Loongson: Introduce and use loongson_llsc_mb()
2019-02-04 10:53:34 -08:00
ginvt.h
MIPS: Add GINVT instruction helpers
2019-02-04 10:56:35 -08:00
gio_device.h
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gt64120.h
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hardirq.h
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hazards.h
MIPS: Avoid using .set mips0 to restore ISA
2018-11-09 10:23:19 -08:00
highmem.h
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hpet.h
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hugetlb.h
hugetlb: introduce generic version of huge_ptep_get
2018-10-26 16:26:34 -07:00
hw_irq.h
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i8259.h
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ide.h
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idle.h
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inst.h
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io.h
MIPS: Avoid using .set mips0 to restore ISA
2018-11-09 10:23:19 -08:00
irq_cpu.h
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irq_gt641xx.h
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irq_regs.h
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irq.h
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irqflags.h
MIPS: Loongson32: workaround di issue
2019-01-22 17:32:01 -08:00
isa-rev.h
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isadep.h
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jazz.h
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jazzdma.h
mips/jazz: remove the mapping_error dma_map_ops method
2018-12-06 06:56:38 -08:00
jump_label.h
MIPS: Fix kernel crash for R6 in jump label branch function
2019-03-11 11:11:11 -07:00
Kbuild
MIPS: remove meaningless generic-(CONFIG_GENERIC_CSUM) += checksum.h
2019-01-22 17:35:57 -08:00
kdebug.h
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kexec.h
MIPS: kexec: Relax memory restriction
2018-09-22 10:32:34 -07:00
kgdb.h
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kmap_types.h
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kprobes.h
MIPS/kprobes: Remove jprobe implementation
2018-06-21 12:33:09 +02:00
kvm_host.h
KVM: Call kvm_arch_memslots_updated() before updating memslots
2019-02-20 22:48:32 +01:00
kvm_para.h
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linkage.h
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llsc.h
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local.h
MIPS: Avoid using .set mips0 to restore ISA
2018-11-09 10:23:19 -08:00
m48t37.h
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maar.h
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machine.h
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mc146818-time.h
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mc146818rtc.h
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mips_machine.h
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mips_mt.h
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mips-cm.h
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mips-cpc.h
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mips-cps.h
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mips-gic.h
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mips-r2-to-r6-emul.h
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mipsmtregs.h
MIPS: Avoid using .set mips0 to restore ISA
2018-11-09 10:23:19 -08:00
mipsprom.h
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mipsregs.h
MIPS: MemoryMapID (MMID) Support
2019-02-04 10:56:41 -08:00
mmu_context.h
MIPS: MemoryMapID (MMID) Support
2019-02-04 10:56:41 -08:00
mmu.h
MIPS: MemoryMapID (MMID) Support
2019-02-04 10:56:41 -08:00
mmzone.h
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
2018-11-21 19:54:59 -08:00
module.h
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msa.h
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msc01_ic.h
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nile4.h
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paccess.h
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page.h
MIPS: Enable IOREMAP_PROT config option for MIPS cpus
2018-11-05 10:15:28 -08:00
pci.h
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perf_event.h
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pgalloc.h
mm: treewide: remove unused address argument from pte_alloc functions
2019-01-04 13:13:47 -08:00
pgtable-32.h
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pgtable-64.h
MIPS: Ensure pmd_present() returns false after pmd_mknotpresent()
2018-11-20 21:05:39 -08:00
pgtable-bits.h
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pgtable.h
MIPS: Fix set_pte() for Netlogic XLR using cmpxchg64()
2019-02-06 14:59:24 -08:00
pm-cps.h
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pm.h
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pmon.h
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prefetch.h
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processor.h
MIPS: Remove struct task_struct fpu state when CONFIG_MIPS_FP_SUPPORT=n
2018-11-09 10:23:19 -08:00
prom.h
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ptrace.h
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r4k-timer.h
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r4kcache.h
MIPS: c-r4k: Add r4k_blast_scache_node for Loongson-3
2018-11-20 21:04:17 -08:00
reboot.h
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reg.h
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regdef.h
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rtlx.h
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seccomp.h
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serial.h
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setup.h
mips: unify prom_putchar() declarations
2018-07-17 09:40:17 -07:00
sgialib.h
mips: unify prom_putchar() declarations
2018-07-17 09:40:17 -07:00
sgiarcs.h
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shmparam.h
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sigcontext.h
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signal.h
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sim.h
MIPS: Remove nabi_no_regargs
2018-08-01 13:20:15 -07:00
smp-cps.h
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smp-ops.h
MIPS: SGI-IP27: do boot CPU init later
2019-02-19 12:46:03 -08:00
smp.h
MIPS: kexec: Make a framework for both jumping and halting on nonboot CPUs
2018-09-22 10:31:50 -07:00
sni.h
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socket.h
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sparsemem.h
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spinlock_types.h
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spinlock.h
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spram.h
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stackframe.h
MIPS: Avoid using .set mips0 to restore ISA
2018-11-09 10:23:19 -08:00
stackprotector.h
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stacktrace.h
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string.h
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switch_to.h
MIPS: Avoid FCSR sanitization when CONFIG_MIPS_FP_SUPPORT=n
2018-11-09 10:23:18 -08:00
syscall.h
syscalls: Remove start and number from syscall_get_arguments() args
2019-04-05 09:26:43 -04:00
termios.h
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
thread_info.h
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time.h
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timex.h
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tlb.h
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tlbdebug.h
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tlbex.h
MIPS: Consistently declare TLB functions
2018-08-10 17:27:53 -07:00
tlbflush.h
MIPS: mm: Remove local_flush_tlb_mm()
2019-02-04 10:56:24 -08:00
tlbmisc.h
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topology.h
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traps.h
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txx9irq.h
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txx9pio.h
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txx9tmr.h
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types.h
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uaccess.h
get rid of legacy 'get_ds()' function
2019-03-04 10:50:14 -08:00
uasm.h
mips: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_X
2018-12-07 13:30:48 -08:00
unistd.h
y2038: rename old time and utime syscalls
2019-02-07 00:13:28 +01:00
uprobes.h
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vdso.h
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vga.h
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vpe.h
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war.h
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watch.h
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wbflush.h
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yamon-dt.h
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