linux-kernel - Re: [GIT PULL] sh: remove sh5 support

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Date:   Mon, 1 Jun 2020 23:12:17 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Rich Felker <dalias@...c.org>
Cc:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
        Christoph Hellwig <hch@...radead.org>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Rob Landley <rob@...dley.net>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [GIT PULL] sh: remove sh5 support

On Mon, Jun 1, 2020 at 8:13 PM Rich Felker <dalias@...c.org> wrote:
> On Sat, May 30, 2020 at 10:08:09AM +0200, John Paul Adrian Glaubitz wrote:
> > On 5/29/20 7:53 PM, Rich Felker wrote:
> > > [PATCH next] sh: remove call to memset after dma_alloc_coherent
> > > https://marc.info/?l=linux-sh&m=157793031102356&w=2
>
> Can anyone confirm that this is correct/safe?

Yes, this is safe, I checked both the API definition and the sh
implementation in arch_dma_alloc(), which passes __GFP_ZERO.

       Arnd