linux-kernel - Re: [PATCH v3] block: Removed a warning while compiling with a cross compiler for parisc

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Message-ID: <YORh3XGNiRKzjDbS@infradead.org>
Date:   Tue, 6 Jul 2021 14:59:57 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Abd-Alrhman Masalkhi <abd.masalkhi@...il.com>
Cc:     axboe@...nel.dk, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, dan.carpenter@...cle.com,
        kbuild@...ts.01.org, lkp@...el.com
Subject: Re: [PATCH v3] block: Removed a warning while compiling with a cross
 compiler for parisc

>  #ifdef CONFIG_PROC_FS
> +static noinline u64 call_div_u64(u64 dividend, u32 divisor)
> +{
> +	return div_u64(dividend, divisor);
> +}

Do you have any information on how much this reduces stack usage?
As it looks a little silly given the div_u64 implementation.