Commit 460e70e2 authored by Dan Carpenter's avatar Dan Carpenter Committed by Will Deacon
Browse files

arm64: delete dead code in this_cpu_set_vectors() 



The "slot" variable is an enum, and in this context it is an unsigned
int.  So the type means it can never be negative and also we never pass
invalid data to this function.  If something did pass invalid data then
this check would be insufficient protection.

Signed-off-by: default avatarDan Carpenter <dan.carpenter@linaro.org>
Acked-by: default avatarArd Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/73859c9e-dea0-4764-bf01-7ae694fa2e37@kili.mountain


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent a2a83eb4

arch/arm64/kernel/proton-pack.c

+0 −3
Original line number Diff line number Diff line
@@ -966,9 +966,6 @@ static void this_cpu_set_vectors(enum arm64_bp_harden_el1_vectors slot) 
{

	const char *v = arm64_get_bp_hardening_vector(slot);



	if (slot < 0)

		return;



	__this_cpu_write(this_cpu_vector, v);



	/*