linux/arch/openrisc
Linus Torvalds 736706bee3 get rid of legacy 'get_ds()' function
Every in-kernel use of this function defined it to KERNEL_DS (either as
an actual define, or as an inline function).  It's an entirely
historical artifact, and long long long ago used to actually read the
segment selector valueof '%ds' on x86.

Which in the kernel is always KERNEL_DS.

Inspired by a patch from Jann Horn that just did this for a very small
subset of users (the ones in fs/), along with Al who suggested a script.
I then just took it to the logical extreme and removed all the remaining
gunk.

Roughly scripted with

   git grep -l '(get_ds())' -- :^tools/ | xargs sed -i 's/(get_ds())/(KERNEL_DS)/'
   git grep -lw 'get_ds' -- :^tools/ | xargs sed -i '/^#define get_ds()/d'

plus manual fixups to remove a few unusual usage patterns, the couple of
inline function cases and to fix up a comment that had become stale.

The 'get_ds()' function remains in an x86 kvm selftest, since in user
space it actually does something relevant.

Inspired-by: Jann Horn <jannh@google.com>
Inspired-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-04 10:50:14 -08:00
..
boot/dts DeviceTree for 4.15: 2017-11-14 18:25:40 -08:00
configs openrisc: add simple_smp dts and defconfig for simulators 2017-11-03 14:01:15 +09:00
include get rid of legacy 'get_ds()' function 2019-03-04 10:50:14 -08:00
kernel Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
lib OpenRISC updates for v4.15 2017-11-13 12:12:00 -08:00
mm mm: treewide: remove unused address argument from pte_alloc functions 2019-01-04 13:13:47 -08:00
Kconfig Kconfig updates for v4.21 2018-12-29 13:03:29 -08:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile openrisc: remove unneeded code in arch/openrisc/Makefile 2019-01-17 23:42:59 +09:00