Commit d272b8d2 authored by Hui Wang's avatar Hui Wang Committed by Paul Walmsley
Browse files

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



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: default avatarHui Wang <hui.wang@canonical.com>
Link: https://patch.msgid.link/20260430045350.22213-1-hui.wang@canonical.com


Signed-off-by: default avatarPaul Walmsley <pjw@kernel.org>
parent f2abc305

arch/riscv/kernel/cpufeature.c

+1 −3
Original line number Diff line number Diff line
@@ -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);