Commit 41337097 authored by Hui Wang's avatar Hui Wang Committed by Paul Walmsley
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riscv: cpufeature: Use pre-defined ISA ext macros to index isa2hwcap 



We have pre-defined ISA extension macros, here use those macros to
replace a magic number for isa2hwcap definition and some array
indexing for isa2hwcap access.

This doesn't change the original functionality, just improve the code
maintainability and readability.

Signed-off-by: default avatarHui Wang <hui.wang@canonical.com>
Link: https://patch.msgid.link/20260506132152.53239-1-hui.wang@canonical.com


Signed-off-by: default avatarPaul Walmsley <pjw@kernel.org>
parent db909bd7

arch/riscv/kernel/cpufeature.c

+8 −8
Original line number Diff line number Diff line
@@ -1102,16 +1102,16 @@ early_param("riscv_isa_fallback", riscv_isa_fallback_setup); 
void __init riscv_fill_hwcap(void)

{

	char print_str[NUM_ALPHA_EXTS + 1];

	unsigned long isa2hwcap[26] = {0};

	unsigned long isa2hwcap[RISCV_ISA_EXT_BASE] = {0};

	int i, j;



	isa2hwcap['i' - 'a'] = COMPAT_HWCAP_ISA_I;

	isa2hwcap['m' - 'a'] = COMPAT_HWCAP_ISA_M;

	isa2hwcap['a' - 'a'] = COMPAT_HWCAP_ISA_A;

	isa2hwcap['f' - 'a'] = COMPAT_HWCAP_ISA_F;

	isa2hwcap['d' - 'a'] = COMPAT_HWCAP_ISA_D;

	isa2hwcap['c' - 'a'] = COMPAT_HWCAP_ISA_C;

	isa2hwcap['v' - 'a'] = COMPAT_HWCAP_ISA_V;

	isa2hwcap[RISCV_ISA_EXT_i] = COMPAT_HWCAP_ISA_I;

	isa2hwcap[RISCV_ISA_EXT_m] = COMPAT_HWCAP_ISA_M;

	isa2hwcap[RISCV_ISA_EXT_a] = COMPAT_HWCAP_ISA_A;

	isa2hwcap[RISCV_ISA_EXT_f] = COMPAT_HWCAP_ISA_F;

	isa2hwcap[RISCV_ISA_EXT_d] = COMPAT_HWCAP_ISA_D;

	isa2hwcap[RISCV_ISA_EXT_c] = COMPAT_HWCAP_ISA_C;

	isa2hwcap[RISCV_ISA_EXT_v] = COMPAT_HWCAP_ISA_V;



	if (!acpi_disabled) {

		riscv_fill_hwcap_from_isa_string(isa2hwcap);