linux-kernel - RE: [PATCH] mmc: sh_mmcif: Use platform_get_irq

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Date:   Wed, 2 Oct 2019 09:20:44 +0000
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Wolfram Sang <wsa@...-dreams.de>
CC:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Jiri Slaby <jslaby@...e.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] mmc: sh_mmcif: Use platform_get_irq_optional() for
 optional interrupt

Hi Geert-san,

> From: Geert Uytterhoeven, Sent: Wednesday, October 2, 2019 5:32 PM
> 
> Hi Shimoda-san, Wolfram,
> 
> On Wed, Oct 2, 2019 at 10:26 AM Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@...esas.com> wrote:
> > > From: Wolfram Sang, Sent: Wednesday, October 2, 2019 5:16 PM
> > <snip>
> > > Tested on a R-Car H2: it does make the error message go away and the
> > > MMCIF device acts normal during boot. Can't enter userspace currently
> > > with v5.4-rc1 but this is unrelated to this patch and MMCIF. Looks like a
> > > configuration thing on my side, so I will still give:
> >
> > I also should have reported this though, my environment (R-Car H2 + NFS +
> > buildroot on v5.4-rc1 with shmobile_defconfig) also has a similar issue
> > like the following:
> >
> > [    3.573488] VFS: Mounted root (nfs filesystem) on device 0:16.
> > [    3.579869] devtmpfs: mounted
> > [    3.588014] Freeing unused kernel memory: 1024K
> > [    3.651771] Run /sbin/init as init process
> > Starting syslogd: OK
> > Starting klogd: OK
> > Initializing random number generator... [    4.073629] random: dd: uninitialized urandom read (512 bytes read)
> > urandom start: failed.
> > done.
> > Starting network: ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> 
> Please cherry-pick the top commit from renesas-devel:
> 6e47c841329eb9b0 ("ARM: fix __get_user_check() in case uaccess_* calls
> are not inlined")

Thank you for the information. This commit could fix the issue on my environment.

Best regards,
Yoshihiro Shimoda