github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

riscv: cpufeature: Drop this_hwcap clear in T-Head vector workaround

Browse Source 
The variable this_hwcap is initialized to 0 for each loop, it is not
necessary to do the bit clearance since this_hwcap is still 0 at this
point, clearing the source_isa is enough here.

Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://patch.msgid.link/20260430045350.22213-1-hui.wang@canonical.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
This commit is contained in:
Hui Wang 2026-04-30 12:53:50 +08:00 committed by Paul Walmsley
parent f2abc305aa
commit d272b8d2dd
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/riscv/kernel/cpufeature.c
View File

@ -896,10 +896,8 @@ static void __init riscv_fill_hwcap_from_isa_string(unsigned long *isa2hwcap)
* CPU cores with the ratified spec will contain non-zero
* marchid.
*/
if (acpi_disabled && boot_vendorid == THEAD_VENDOR_ID && boot_archid == 0x0) {
this_hwcap &= ~isa2hwcap[RISCV_ISA_EXT_v];
if (acpi_disabled && boot_vendorid == THEAD_VENDOR_ID && boot_archid == 0x0)
clear_bit(RISCV_ISA_EXT_v, source_isa);
}
riscv_resolve_isa(source_isa, isainfo->isa, &this_hwcap, isa2hwcap);