linux-kernel - Re: [PATCH] vfio: platform: mark symbols static where possible

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Message-ID: <CAN9JPjHDDixh2kd1NSngE=oDZuuKVK4GmOee6s0YBP_ESTKVBg@mail.gmail.com>
Date:   Thu, 1 Sep 2016 14:09:46 +0200
From:   Baptiste Reynal <b.reynal@...tualopensystems.com>
To:     Auger Eric <eric.auger@...aro.org>
Cc:     Baoyou Xie <baoyou.xie@...aro.org>,
        Alex Williamson <alex.williamson@...hat.com>, arnd@...db.de,
        dan.carpenter@...cle.com,
        "open list:VFIO DRIVER" <kvm@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>, xie.baoyou@....com.cn
Subject: Re: [PATCH] vfio: platform: mark symbols static where possible

On Thu, Sep 1, 2016 at 1:41 PM, Auger Eric <eric.auger@...aro.org> wrote:
>
> Hi Baoyou,
>
> On 01/09/2016 13:15, Baoyou Xie wrote:
> > We get a few warnings when building kernel with W=1:
> > drivers/vfio/platform/vfio_platform_common.c:76:5: warning: no previous prototype for 'vfio_platform_acpi_call_reset' [-Wmissing-prototypes]
> > drivers/vfio/platform/vfio_platform_common.c:98:6: warning: no previous prototype for 'vfio_platform_acpi_has_reset' [-Wmissing-prototypes]
> > drivers/vfio/platform/vfio_platform_common.c:640:5: warning: no previous prototype for 'vfio_platform_of_probe' [-Wmissing-prototypes]
> > drivers/vfio/platform/reset/vfio_platform_amdxgbe.c:59:5: warning: no previous prototype for 'vfio_platform_amdxgbe_reset' [-Wmissing-prototypes]
> > drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c:60:5: warning: no previous prototype for 'vfio_platform_calxedaxgmac_reset' [-Wmissing-prototypes]
> > ....
> >
> > In fact, these functions are only used in the file in which they are
> > declared and don't need a declaration, but can be made static.
> > so this patch marks these functions with 'static'.
> >
> > Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
> > ---
> >  drivers/vfio/platform/reset/vfio_platform_amdxgbe.c      | 2 +-
> >  drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c | 2 +-
> >  drivers/vfio/platform/vfio_platform_common.c             | 6 +++---
> >  3 files changed, 5 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
> > index d4030d0..bcd419c 100644
> > --- a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
> > +++ b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
> > @@ -56,7 +56,7 @@ static void xmdio_write(void *ioaddr, unsigned int mmd,
> >       iowrite32(value, ioaddr + ((mmd_address & 0xff) << 2));
> >  }
> >
> > -int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
> > +static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
> >  {
> >       struct vfio_platform_region *xgmac_regs = &vdev->regions[0];
> >       struct vfio_platform_region *xpcs_regs = &vdev->regions[1];
> > diff --git a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c
> > index e3d3d94..49e5df6 100644
> > --- a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c
> > +++ b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c
> > @@ -57,7 +57,7 @@ static inline void xgmac_mac_disable(void __iomem *ioaddr)
> >       writel(value, ioaddr + XGMAC_CONTROL);
> >  }
> >
> > -int vfio_platform_calxedaxgmac_reset(struct vfio_platform_device *vdev)
> > +static int vfio_platform_calxedaxgmac_reset(struct vfio_platform_device *vdev)
> >  {
> >       struct vfio_platform_region *reg = &vdev->regions[0];
> >
> > diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
> > index 1cf2d46..d781428 100644
> > --- a/drivers/vfio/platform/vfio_platform_common.c
> > +++ b/drivers/vfio/platform/vfio_platform_common.c
> > @@ -73,7 +73,7 @@ static int vfio_platform_acpi_probe(struct vfio_platform_device *vdev,
> >       return WARN_ON(!vdev->acpihid) ? -EINVAL : 0;
> >  }
> >
> > -int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev,
> > +static int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev,
> >                                 const char **extra_dbg)
> >  {
> >  #ifdef CONFIG_ACPI
> > @@ -95,7 +95,7 @@ int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev,
> >  #endif
> >  }
> >
> > -bool vfio_platform_acpi_has_reset(struct vfio_platform_device *vdev)
> > +static bool vfio_platform_acpi_has_reset(struct vfio_platform_device *vdev)
> >  {
> >  #ifdef CONFIG_ACPI
> >       struct device *dev = vdev->device;
> > @@ -637,7 +637,7 @@ static const struct vfio_device_ops vfio_platform_ops = {
> >       .mmap           = vfio_platform_mmap,
> >  };
> >
> > -int vfio_platform_of_probe(struct vfio_platform_device *vdev,
> > +static int vfio_platform_of_probe(struct vfio_platform_device *vdev,
> >                          struct device *dev)
> >  {
> >       int ret;
> >
>
> Reviewed-by: Eric Auger <eric.auger@...hat.com>
>
>
> Thanks!
>
> Eric


Reviewed-by: Baptiste Reynal <b.reynal@...tualopensystems.com>

Thanks,
Baptiste