diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2018-07-19 13:17:38 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2018-11-12 11:51:01 +0100 |
| commit | e209950fdd065d2cc46e6338e47e52841b830cba (patch) | |
| tree | 750f1350edd2beea0ebeb9edf254a4b82eac2398 /arch/arm/kernel | |
| parent | ARM: clean up per-processor check_bugs method call (diff) | |
| download | linux-e209950fdd065d2cc46e6338e47e52841b830cba.tar.xz linux-e209950fdd065d2cc46e6338e47e52841b830cba.zip | |
ARM: add PROC_VTABLE and PROC_TABLE macros
Allow the way we access members of the processor vtable to be changed
at compile time. We will need to move to per-CPU vtables to fix the
Spectre variant 2 issues on big.Little systems.
However, we have a couple of calls that do not need the vtable
treatment, and indeed cause a kernel warning due to the (later) use
of smp_processor_id(), so also introduce the PROC_TABLE macro for
these which always use CPU 0's function pointers.
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/setup.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 05a4eb6b0d01..c214bd14a1fe 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -693,9 +693,7 @@ static void __init setup_processor(void) cpu_name = list->cpu_name; __cpu_architecture = __get_cpu_architecture(); -#ifdef MULTI_CPU - processor = *list->proc; -#endif + init_proc_vtable(list->proc); #ifdef MULTI_TLB cpu_tlb = *list->tlb; #endif |