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android_kernel_xiaomi_sm8350/arch/mips/include/asm
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H. Peter Anvin c41d68a513 compat: Make compat_alloc_user_space() incorporate the access_ok() 
compat_alloc_user_space() expects the caller to independently call
access_ok() to verify the returned area.  A missing call could
introduce problems on some architectures.

This patch incorporates the access_ok() check into
compat_alloc_user_space() and also adds a sanity check on the length.
The existing compat_alloc_user_space() implementations are renamed
arch_compat_alloc_user_space() and are used as part of the
implementation of the new global function.

This patch assumes NULL will cause __get_user()/__put_user() to either
fail or access userspace on all architectures.  This should be
followed by checking the return value of compat_access_user_space()
for NULL in the callers, at which time the access_ok() in the callers
can also be removed.

Reported-by: Ben Hawkes <hawkes@sota.gen.nz>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: James Bottomley <jejb@parisc-linux.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: <stable@kernel.org>
2010-09-14 16:08:45 -07:00
..
dec MIPS: Make various locks static. 2010-02-27 12:53:30 +01:00
emma MIPS: EMMA2RH: Replace EMMA2RH_SW_IRQ_INTxx with EMMA2RH_SW_IRQ(n) 2010-08-05 13:26:04 +01:00
fw
ip32
lasat
mach-ar7 MIPS: AR7, BCM63xx: fix gpio_to_irq() return value 2010-07-05 17:17:26 +01:00
mach-au1x00 MIPS: au1000_eth: Get ethernet address from platform_data 2010-08-05 13:26:09 +01:00
mach-bcm47xx MIPS: BCM47xx: Fix nvram_getenv return value. 2010-08-05 13:26:31 +01:00
mach-bcm63xx MIPS: AR7, BCM63xx: fix gpio_to_irq() return value 2010-07-05 17:17:26 +01:00
mach-cavium-octeon MIPS: Octeon: Support 256 MSI on PCIe 2010-08-05 13:26:27 +01:00
mach-cobalt
mach-db1x00 MIPS: Alchemy: Extended DB1200 board support. 2010-02-27 12:53:00 +01:00
mach-dec
mach-emma2rh
mach-generic dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-11 08:59:21 -07:00
mach-ip22
mach-ip27 dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-11 08:59:21 -07:00
mach-ip28
mach-ip32 dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-11 08:59:21 -07:00
mach-jazz
mach-jz4740 MMC: Add support for the controller on JZ4740 SoCs. 2010-08-05 13:26:18 +01:00
mach-lasat
mach-loongson MIPS: Loongson: Oprofile: add a new do_perfcnt_IRQ() 2010-08-05 13:26:24 +01:00
mach-malta
mach-mipssim
mach-pb1x00 MIPS: Remove dead CONFIG_MTD_PB1550_BOOT, CONFIG_MTD_PB1550_USER 2010-08-05 13:26:00 +01:00
mach-pnx833x MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
mach-pnx8550
mach-powertv MIPS: PowerTV: Separate PowerTV USB support from non-USB code 2010-08-05 13:26:34 +01:00
mach-rc32434
mach-rm
mach-sibyte MIPS: Sibyte: Apply M3 workaround only on affected chip types and versions. 2010-04-12 17:26:19 +01:00
mach-tx39xx
mach-tx49xx MIPS: TX49xx: Define ARCH_KMALLOC_MINALIGN 2010-08-05 13:25:38 +01:00
mach-vr41xx
mach-wrppmc
mach-yosemite
mips-boards
octeon MIPS: Octeon: Allow more than 3.75GB of memory with PCIe 2010-08-05 13:26:31 +01:00
pci
pmc-sierra/msp71xx MIPS: MSP71xx: Remove dead CONFIG_MTD_PMC_MSP_RAMROOT 2010-08-05 13:26:01 +01:00
sgi
sibyte MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
sn MIPS: IP27: Don't include <linux/topology.h> into <asm/sn/agent.h>. 2010-08-05 13:25:38 +01:00
txx9 MIPS: TXx9: Remove forced serial console setting 2010-02-27 12:53:22 +01:00
vr41xx
xtalk
abi.h MIPS: Move signal trampolines off of the stack. 2010-04-12 17:26:15 +01:00
addrspace.h
amon.h
arch_hweight.h MIPS: Create and use asm/arch_hweight.h 2010-08-05 13:26:02 +01:00
asm-offsets.h
asm.h
asmmacro-32.h
asmmacro-64.h
asmmacro.h
atomic.h MIPS: Quit using undefined behavior of ADDU in 64-bit atomic operations. 2010-07-26 19:08:18 +01:00
auxvec.h
barrier.h MIPS: Optimize spinlocks. 2010-02-27 12:53:42 +01:00
bcache.h
bitops.h MIPS: Create and use asm/arch_hweight.h 2010-08-05 13:26:02 +01:00
bitsperlong.h
bootinfo.h MIPS: JZ4740: Add base support for Ingenic JZ4740 System-on-a-Chip 2010-08-05 13:26:12 +01:00
branch.h
break.h MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
bug.h
bugs.h
byteorder.h
cache.h
cachectl.h
cacheflush.h
cacheops.h MIPS: RM7000: Add support for tertiary cache 2010-08-05 13:26:06 +01:00
cevt-r4k.h
checksum.h
clock.h MIPS: Loongson 2F: Add CPU frequency scaling support 2009-12-17 01:57:20 +00:00
cmp.h
cmpxchg.h MIPS: cmpxchg.h: Fix excessive indentation. 2010-04-30 20:52:41 +01:00
compat-signal.h
compat.h compat: Make compat_alloc_user_space() incorporate the access_ok() 2010-09-14 16:08:45 -07:00
compiler.h
cop2.h MIPS: Provide more elevant interface cu2_notifier for CP2 extensions. 2010-08-05 13:25:59 +01:00
cpu-features.h MIPS: Update comment for cpu_has_clo_clz 2010-08-05 13:26:01 +01:00
cpu-info.h MIPS: 64-bit: Detect virtual memory size 2010-02-02 19:56:23 +01:00
cpu.h MIPS: JZ4740: Add base support for Ingenic JZ4740 System-on-a-Chip 2010-08-05 13:26:12 +01:00
cputime.h
current.h MIPS: Use generic current.h 2010-02-27 12:53:27 +01:00
debug.h
delay.h
device.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
div64.h
dma-mapping.h dma-mapping: remove dma_is_consistent API 2010-08-11 08:59:21 -07:00
dma.h
ds1287.h
dsp.h
edac.h
elf.h MIPS: Enable heap randomization. 2010-08-05 13:26:06 +01:00
emergency-restart.h
errno.h
fb.h
fcntl.h fix up O_SYNC comments 2009-12-17 11:03:24 -05:00
fixmap.h
floppy.h
fpregdef.h
fpu_emulator.h MIPS: Fix build breakage if CONFIG_DEBUG_FS is enabled. 2010-04-12 17:26:08 +01:00
fpu.h MIPS: Cleanup signal code initialization 2009-12-17 01:57:32 +00:00
ftrace.h MIPS: Loongson: Change the Email address of Wu Zhangjin 2010-02-27 12:53:12 +01:00
futex.h
gcmpregs.h
gic.h
gpio.h
gt64120.h
hardirq.h
hazards.h MIPS: Alchemy: remove SOC_AU1X00 in favor of MIPS_ALCHEMY 2010-08-05 13:26:06 +01:00
highmem.h kmap_atomic: make kunmap_atomic() harder to misuse 2010-08-09 20:44:54 -07:00
hugetlb.h
hw_irq.h
i8253.h i8253: Convert i8253_lock to raw_spinlock 2010-03-02 10:28:38 +01:00
i8259.h MIPS: i8259: Convert IRQ controller lock to raw spinlock. 2010-02-27 12:53:38 +01:00
ide.h
inst.h MIPS: Add instrunction format for BREAK and SYSCALL 2010-08-05 13:26:28 +01:00
io.h MIPS: add readl/write_be accessors 2010-02-27 12:53:12 +01:00
ioctl.h
ioctls.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
ipcbuf.h
irq_cpu.h
irq_gt641xx.h
irq_regs.h
irq.h MIPS: PowerTV: Fix support for timer interrupts with > 64 external IRQs 2010-01-28 00:03:31 +01:00
irqflags.h
isadep.h
jazz.h
jazzdma.h
Kbuild
kdebug.h MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
kexec.h
kgdb.h kgdb,mips: Individual register get/set for mips 2010-08-05 09:22:21 -05:00
kmap_types.h
kprobes.h MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
kspd.h
linkage.h
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
local.h local_t: Remove cpu_local_xx macros 2010-01-05 15:34:49 +09:00
m48t37.h
mc146818-time.h
mc146818rtc.h
mips_mt.h
mipsmtregs.h
mipsprom.h
mipsregs.h MIPS: Define ST0_NMI in asm/mipsregs.h 2010-08-05 13:26:22 +01:00
mman.h
mmu_context.h MIPS: Preliminary VDSO 2010-04-12 17:26:14 +01:00
mmu.h MIPS: Preliminary VDSO 2010-04-12 17:26:14 +01:00
mmzone.h
module.h
msc01_ic.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
msgbuf.h
mutex.h
nile4.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
paccess.h
page.h MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET 2010-04-12 17:26:13 +01:00
param.h MIPS: Simplify param.h by using <asm-generic/param.h> 2010-02-27 12:53:04 +01:00
parport.h MIPS: Use generic parport.h 2010-02-27 12:53:27 +01:00
pci.h MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts. 2010-08-05 13:26:27 +01:00
percpu.h
pgalloc.h MIPS: Two-level pagetables for 64-bit kernels with 64KB pages. 2010-02-27 12:53:03 +01:00
pgtable-32.h MIPS: Implement Read Inhibit/eXecute Inhibit 2010-02-27 12:53:26 +01:00
pgtable-64.h MIPS: Don't vmap things at address zero. 2010-04-30 20:52:41 +01:00
pgtable-bits.h MIPS: Implement Read Inhibit/eXecute Inhibit 2010-02-27 12:53:26 +01:00
pgtable.h Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
pmon.h
poll.h
posix_types.h
prefetch.h
processor.h MIPS: Remove unused task_struct.trap_no field. 2010-08-05 13:26:30 +01:00
ptrace.h MIPS: kprobes: Define regs_return_value() 2010-08-05 13:26:28 +01:00
r4k-timer.h
r4kcache.h
reboot.h
reg.h
regdef.h
resource.h
rm9k-ocd.h
rtlx.h
scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
seccomp.h
sections.h
segment.h
sembuf.h
serial.h MIPS: Use generic serial.h 2010-02-27 12:53:27 +01:00
setup.h
sgialib.h MIPS: ARC: Cleanup unused definitions from sgialib.h 2010-02-27 12:53:45 +01:00
sgiarcs.h
sgidefs.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
sim.h
smp-ops.h
smp.h
smtc_ipi.h
smtc_proc.h
smtc.h
smvp.h
sni.h
socket.h
sockios.h
sparsemem.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
spinlock_types.h MIPS: Optimize spinlocks. 2010-02-27 12:53:42 +01:00
spinlock.h MIPS: Optimize spinlocks. 2010-02-27 12:53:42 +01:00
spram.h
stackframe.h MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds. 2010-04-30 20:52:58 +01:00
stacktrace.h
stat.h
statfs.h add f_flags to struct statfs(64) 2010-08-09 16:48:44 -04:00
string.h
suspend.h
swab.h
sysmips.h
system.h MIPS: New macro smp_mb__before_llsc. 2010-02-27 12:53:06 +01:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h
thread_info.h add descriptive comment for TIF_MEMDIE task flag declaration. 2010-05-14 11:13:27 +02:00
time.h
timex.h
titan_dep.h
tlb.h
tlbdebug.h
tlbflush.h
topology.h
traps.h
txx9irq.h
txx9pio.h
txx9tmr.h
types.h
uaccess.h
uasm.h MIPS: uasm: Add option to export uasm API. 2010-08-05 13:26:21 +01:00
ucontext.h MIPS: Use generic ucontext.h 2010-02-27 12:53:27 +01:00
unaligned.h
unistd.h MIPS: N32: Define getdents64. 2010-07-26 19:08:17 +01:00
user.h
vdso.h MIPS: Preliminary VDSO 2010-04-12 17:26:14 +01:00
vga.h
vpe.h
war.h
watch.h
wbflush.h
xor.h