linux/arch/mips/math-emu
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
..
cp1emu.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
dp_2008class.c MIPS: math-emu: Add support for the MIPS R6 CLASS FPU instruction 2015-09-03 12:08:14 +02:00
dp_add.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_cmp.c MIPS: math-emu: Remove redundant code from NaN comparison 2015-04-08 01:09:38 +02:00
dp_div.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_fint.c MIPS: math-emu: Cleanup coding style. 2014-05-23 15:11:15 +02:00
dp_flong.c MIPS: math-emu: Cleanup coding style. 2014-05-23 15:11:15 +02:00
dp_fmax.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_fmin.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_fsp.c MIPS: math-emu: Reinstate sNaN quieting handlers 2015-04-08 01:09:31 +02:00
dp_maddf.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_mul.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_rint.c MIPS: math-emu: RINT.<D|S>: Fix several problems by reimplementation 2017-08-29 15:21:56 +02:00
dp_simple.c MIPS: math-emu: Add IEEE Std 754-2008 ABS.fmt and NEG.fmt emulation 2016-01-20 00:39:20 +01:00
dp_sqrt.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_sub.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
dp_tint.c MIPS: math-emu: Add IEEE Std 754-2008 NaN encoding emulation 2016-01-20 00:39:20 +01:00
dp_tlong.c MIPS: math-emu: Add IEEE Std 754-2008 NaN encoding emulation 2016-01-20 00:39:20 +01:00
dsemul.c MIPS: math-emu: Write-protect delay slot emulation pages 2018-12-20 10:00:01 -08:00
ieee754.c MIPS: math-emu: Add IEEE Std 754-2008 NaN encoding emulation 2016-01-20 00:39:20 +01:00
ieee754.h MIPS: math-emu: Use preferred flavor of unsigned integer declarations 2017-11-07 18:33:16 +00:00
ieee754d.c MIPS: math-emu: Cleanup coding style. 2014-05-23 15:11:15 +02:00
ieee754dp.c MIPS: math-emu: Always propagate sNaN payload in quieting 2016-05-13 14:02:11 +02:00
ieee754dp.h MIPS: math-emu: Avoid definition duplication for macro DPXMULT() 2017-12-12 17:20:19 +01:00
ieee754int.h MIPS: math-emu: Use preferred flavor of unsigned integer declarations 2017-11-07 18:33:16 +00:00
ieee754sp.c MIPS: math-emu: Use preferred flavor of unsigned integer declarations 2017-11-07 18:33:16 +00:00
ieee754sp.h MIPS: math-emu: Use preferred flavor of unsigned integer declarations 2017-11-07 18:33:16 +00:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
me-debugfs.c MIPS: math-emu: Change to use DEFINE_SHOW_ATTRIBUTE macro 2018-11-05 10:13:21 -08:00
sp_2008class.c MIPS: math-emu: Add support for the MIPS R6 CLASS FPU instruction 2015-09-03 12:08:14 +02:00
sp_add.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_cmp.c MIPS: math-emu: Remove redundant code from NaN comparison 2015-04-08 01:09:38 +02:00
sp_div.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_fdp.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_fint.c MIPS: math-emu: Use preferred flavor of unsigned integer declarations 2017-11-07 18:33:16 +00:00
sp_flong.c MIPS: math-emu: Cleanup coding style. 2014-05-23 15:11:15 +02:00
sp_fmax.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_fmin.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_maddf.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_mul.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_rint.c MIPS: math-emu: RINT.<D|S>: Fix several problems by reimplementation 2017-08-29 15:21:56 +02:00
sp_simple.c MIPS: math-emu: Add IEEE Std 754-2008 ABS.fmt and NEG.fmt emulation 2016-01-20 00:39:20 +01:00
sp_sqrt.c MIPS: math-emu: Avoid multiple assignment 2017-12-12 17:20:20 +01:00
sp_sub.c MIPS: math-emu: Mark fall throughs in switch statements with a comment 2017-12-12 17:20:20 +01:00
sp_tint.c MIPS: math-emu: Add IEEE Std 754-2008 NaN encoding emulation 2016-01-20 00:39:20 +01:00
sp_tlong.c MIPS: math-emu: Remove an unnecessary header inclusion 2017-12-12 17:20:19 +01:00