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From: Nam Cao <namcao@linutronix.de>
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To: Jisheng Zhang <jszhang@kernel.org>, Paul Walmsley <pjw@kernel.org>,
 Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>,
 Alexandre Ghiti <alex@ghiti.fr>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/3] riscv: word-at-a-time: improve find_zero() for RV32
In-Reply-To: <20260930124052.21986-3-jszhang@kernel.org>
References: <20260930124052.21986-1-jszhang@kernel.org>
 <20260930124052.21986-3-jszhang@kernel.org>
Date: Fri, 09 Oct 2026 15:28:09 +0200
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Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org

Jisheng Zhang <jszhang@kernel.org> writes:
> To remove non-necessary zero bits couting on RV32, replace the
> 'fls64(mask) >> 3' with '!mask ? 0 : ((__fls(mask) + 1) >> 3);'
>
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>

Reviewed-by: Nam Cao <namcao@linutronix.de>

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