kernel/arch/mips/include/asm/termios.h, branch linux-rolling-stable

termios: get rid of non-UAPI asm/termios.h

2022-09-09T08:44:35Z

All non-UAPI asm/termios.h consist of include of UAPI counterpart and, possibly, include of linux/uaccess.h The latter can't be simply removed, even though nothing in linux/termios.h doesn't depend upon it anymore - there are several places that rely upon that indirect chain of includes to pull linux/uaccess.h. So the include needs to be lifted out of there - we lift into tty_driver.h, serdev.h and places that pull asm/termios.h, but none of * linux/uaccess.h (obvious) * net/sock.h (pulls uaccess.h) * linux/{tty,tty_driver,serdev}.h (tty.h pulls tty_driver.h) That leaves us just with the include of UAPI asm/termios.h, which is what will resolve to if we simply remove non-UAPI header. Signed-off-by: Al Viro Link: https://lore.kernel.org/r/YxDnKvYCHn/ogBUv@ZenIV Signed-off-by: Greg Kroah-Hartman

make generic INIT_C_CC a bit more generic

2022-09-09T08:44:35Z

turn it into an array initializer; then alpha, mips and powerpc variants fold into it. Signed-off-by: Al Viro Link: https://lore.kernel.org/r/YxDm7M6M91gC2RPL@ZenIV Signed-off-by: Greg Kroah-Hartman

termios: consolidate values for VDISCARD in INIT_C_CC

2022-09-09T08:44:34Z

On old systems it used to be ^O. Linux had never actually used the value, but INIT_C_CC (on i386) did initialize it to ^O; unfortunately, it had a typo in the comment claiming that to be ^U. Most of the architectures copied the (correct) definition along with mistaken comment. alpha, powerpc and sparc tried to make the definition match comment. However, util-linux still resets it to ^O on any architecture, ^O is the historical value, kernel ignores it anyway and finally, Linus said "Just change everybody to do the same, nobody cares about VDISCARD". Signed-off-by: Al Viro Link: https://lore.kernel.org/r/YxDmy//MKzs3ye7l@ZenIV Signed-off-by: Greg Kroah-Hartman

termios: start unifying non-UAPI parts of asm/termios.h

2022-09-09T08:44:34Z

* new header (linut/termios_internal.h), pulled by the users of those suckers * defaults for INIT_C_CC and externs for conversion helpers moved over there * remove termios-base.h (empty now) Signed-off-by: Al Viro Link: https://lore.kernel.org/r/YxDmptU7dNGZ+/Hn@ZenIV Signed-off-by: Greg Kroah-Hartman

termios: uninline conversion helpers

2022-09-09T08:44:34Z

default go into drivers/tty/tty_ioctl.c, unusual - into arch/*/kernel/termios.c (only alpha and sparc have those). Signed-off-by: Al Viro Link: https://lore.kernel.org/r/YxDmeUBHo0s/Ew8b@ZenIV Signed-off-by: Greg Kroah-Hartman

Remove 'type' argument from access_ok() function

2019-01-04T02:57:57Z

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

Replace with globally

2016-12-24T19:46:01Z

This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*' sed -i -e "s!$PATT!#include !" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro Signed-off-by: Linus Torvalds

UAPI: (Scripted) Disintegrate arch/mips/include/asm

2012-10-09T08:47:14Z

Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Michael Kerrisk Acked-by: Paul E. McKenney Acked-by: Dave Jones

MIPS: Delete bogus module.h usage in termios.h

2012-05-15T15:48:51Z

There is no need for this. Removing it causes a small amount of fallout (shown below) due to a few implicit header presence assumptions that are easily fixed. arch/mips/include/asm/termios.h:103: error: implicit declaration of function 'access_ok' arch/mips/include/asm/module.h:17: error: expected specifier-qualifier-list before 'Elf64_Addr' Signed-off-by: Paul Gortmaker Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3449/ Signed-off-by: Ralf Baechle

MIPS: Add return value checks to user_termio_to_kernel_termios()

2009-01-30T21:32:57Z

And while at it, convert all functions from macros to inline functions for sanity. Signed-off-by: Ralf Baechle