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Date: Fri, 12 Apr 2024 12:25:42 +0100
From: Conor Dooley <conor.dooley@microchip.com>
To: Charlie Jenkins <charlie@rivosinc.com>
CC: Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>, Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Paul Walmsley
	<paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou
	<aou@eecs.berkeley.edu>, Guo Ren <guoren@kernel.org>, Conor Dooley
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	<cleger@rivosinc.com>, Jonathan Corbet <corbet@lwn.net>, Shuah Khan
	<shuah@kernel.org>, <linux-riscv@lists.infradead.org>,
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Subject: Re: [PATCH 05/19] riscv: Fix extension subset checking
Message-ID: <20240412-underuse-manliness-56d328666ce9@wendy>
References: <20240411-dev-charlie-support_thead_vector_6_9-v1-0-4af9815ec746@rivosinc.com>
 <20240411-dev-charlie-support_thead_vector_6_9-v1-5-4af9815ec746@rivosinc.com>
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On Thu, Apr 11, 2024 at 09:11:11PM -0700, Charlie Jenkins wrote:
> This loop is supposed to check if ext->subset_ext_ids[j] is valid, rather
> than if ext->subset_ext_ids[i] is valid, before setting the extension
> id ext->subset_ext_ids[j] in isainfo->isa.
>=20
> Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
> Fixes: 0d8295ed975b ("riscv: add ISA extension parsing for scalar crypto")

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Thanks,
Conor.

> ---
>  arch/riscv/kernel/cpufeature.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>=20
> diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeatur=
e.c
> index cd156adbeb66..5eb52d270a9a 100644
> --- a/arch/riscv/kernel/cpufeature.c
> +++ b/arch/riscv/kernel/cpufeature.c
> @@ -617,7 +617,7 @@ static int __init riscv_fill_hwcap_from_ext_list(unsi=
gned long *isa2hwcap)
> =20
>  			if (ext->subset_ext_size) {
>  				for (int j =3D 0; j < ext->subset_ext_size; j++) {
> -					if (riscv_isa_extension_check(ext->subset_ext_ids[i]))
> +					if (riscv_isa_extension_check(ext->subset_ext_ids[j]))
>  						set_bit(ext->subset_ext_ids[j], isainfo->isa);
>  				}
>  			}
>=20
> --=20
> 2.44.0
>=20

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