linux-kernel - Re: [PATCH] jffs2: implement mount option to configure endianness

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Message-ID: <8b08e8b992093453bb2b9caff8cff08c.squirrel@twosheds.infradead.org>
Date:   Wed, 7 Nov 2018 16:12:14 -0000
From:   "David Woodhouse" <dwmw2@...radead.org>
To:     "Joakim Tjernlund" <Joakim.Tjernlund@...inera.com>
Cc:     "nkela@...co.com" <nkela@...co.com>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "xe-linux-external@...co.com" <xe-linux-external@...co.com>
Subject: Re: [PATCH] jffs2: implement mount option to configure endianness


> Yes, this may slow things down. I am not sure I agree with the impl.
> either.
> Could one not make cpu_to_je_X/jeX_to_cpu a function ptr which is set to
> a func. with the correct endian?

On x86 retpoline would make that quite slow.

-- 
dwmw2