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SubjectRe: [RFC] device.h: add device_set_platdata routine
Hi Viresh,

> > On Tue, Mar 01, 2011 at 10:03:20AM +0530, Viresh Kumar wrote:
> >> device.h supports device_get_platdata but doesn't support device_set_platdata.
> >> This routine is required by platforms in which device structure is declared
> >> in a machine specific file and platform data comes from board specific file.
> >>
> >> This will be used by SPEAr patches sent in separate patch series.
> >>
> >> Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
> >> ---
> >> include/linux/device.h | 5 +++++
> >> 1 files changed, 5 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/include/linux/device.h b/include/linux/device.h
> >> index 1bf5cf0..6ce0f20 100644
> >> --- a/include/linux/device.h
> >> +++ b/include/linux/device.h
> >> @@ -576,6 +576,11 @@ static inline void *dev_get_platdata(const struct device *dev)
> >> return dev->platform_data;
> >> }
> >>
> >> +static inline void dev_set_platdata(struct device *dev, void *platdata)
> >> +{
> >> + dev->platform_data = platdata;
> >> +}
> >> +
> > Note that dev->platform_data was designed to hold dynamically allocated
> > memory, at least it's kfreed in platform_device_release. And note there
> > is platform_device_add_data that kmemdups its argument into
> > pdev->dev.platform_data.
> >
>
> Ok. So we should use platform_device_add_data instead and mark our platform
> data's struct as __init. So that it doesn't consume any memory after
> this routine is done??
Yeah, either __initdata or still better const + __initconst if possible.

Best regards
Uwe

--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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