linux/arch/um
Benjamin Beichler e3a33af812 um: fix and optimize xor select template for CONFIG64 and timetravel mode
Due to dropped inclusion of asm-generic/xor.h, xor_block_8regs symbol is
missing with CONFIG64 and break compilation, as the asm/xor_64.h also did
not include it. The patch recreate the logic from arch/x86, which check
whether AVX is available and add fallbacks for 32bit and 64bit config of
um.

A very minor additional "fix" is, the return of the macro parameter
instead of NULL, as this is the original intent of the macro, but
this does not change the actual behavior.

Fixes: c0ecca6604 ("um: enable the use of optimized xor routines in UML")
Signed-off-by: Benjamin Beichler <benjamin.beichler@uni-rostock.de>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2022-03-11 10:44:08 +01:00
..
configs kunit: Move default config from arch/um -> tools/testing/kunit 2021-06-23 17:49:17 -06:00
drivers virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
include um: fix and optimize xor select template for CONFIG64 and timetravel mode 2022-03-11 10:44:08 +01:00
kernel Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
os-Linux um: Use swap() to make code cleaner 2021-12-21 21:41:04 +01:00
scripts License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.gitignore um: gitignore: Add kernel/capflags.c 2021-12-21 21:22:43 +01:00
Kbuild kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild 2021-05-26 23:10:37 +09:00
Kconfig Peter Zijlstra says: 2022-01-11 17:24:45 -08:00
Kconfig.debug um: Disable CONFIG_GCOV with MODULES 2021-04-15 23:10:33 +02:00
Makefile kbuild: do not require sub-make for separate output tree builds 2021-08-10 08:23:39 +09:00
Makefile-os-Linux
Makefile-skas