linux/arch/m68k/kernel
Linus Torvalds 96d4f267e4 Remove 'type' argument from access_ok() function
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-03 18:57:57 -08:00
..
syscalls m68k: Add system call table generation support 2018-12-04 09:47:53 +01:00
.gitignore
asm-offsets.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bootinfo_proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dma.c dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00
early_printk.c m68knommu: remove obsolete 68360 support 2016-03-07 10:07:17 +10:00
entry.S m68k: Use conventional function parameters for do_sigreturn 2016-02-29 09:51:43 +01:00
head.S m68k: Fix boot regression on machines with RAM at non-zero 2014-07-10 09:58:26 +02:00
ints.c m68k: Do not rely on magic indirect includes 2014-03-05 13:28:32 +01:00
irq.c
machine_kexec.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.c m68k/kernel: Modernize printing of kernel messages 2017-02-12 10:36:52 +01:00
module.lds
pcibios.c m68k/pci: Remove a superflous KERN_ERR 2015-03-15 10:24:50 +01:00
process.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ptrace.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
relocate_kernel.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
setup_mm.c m68k fixes for 4.20 2018-12-20 07:35:16 -08:00
setup_no.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
setup.c m68k: pull mach_beep in setup.c 2017-11-06 08:25:21 +10:00
signal.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
sun3-head.S m68k/sun3: Remove is_medusa and m68k_pgtable_cachemode 2018-08-31 09:30:42 +02:00
sys_m68k.c mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff() 2018-04-02 20:16:11 +02:00
syscalltable.S m68k: Generate uapi header and syscall table header files 2018-12-04 09:47:55 +01:00
time.c m68k: Use read_persistent_clock64() consistently 2018-05-22 10:31:51 +02:00
traps.c signal/m68k: Use force_sig_fault where appropriate 2018-04-25 10:41:01 -05:00
uboot.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
vectors.c
vmlinux-nommu.lds m68k: add missing SOFTIRQENTRY_TEXT linker section 2017-12-04 10:15:18 +10:00
vmlinux-std.lds m68k: add missing SOFTIRQENTRY_TEXT linker section 2017-12-04 10:15:18 +10:00
vmlinux-sun3.lds m68k: add missing SOFTIRQENTRY_TEXT linker section 2017-12-04 10:15:18 +10:00
vmlinux.lds.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00