iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64: delete dead code in this_cpu_set_vectors()

Browse Source 
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: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/73859c9e-dea0-4764-bf01-7ae694fa2e37@kili.mountain
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Dan Carpenter 2023-04-19 10:58:43 +03:00 committed by Will Deacon
parent a2a83eb40f
commit 460e70e2dc
1 changed files with 0 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/kernel/proton-pack.c
View File

@ -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);
/*