Re: ping [PATCH v3] WAN: Adding support for Lantiq PEF2256 E1chipset (FALC56)

From: Joe Perches
Date: Mon Jan 20 2014 - 01:22:39 EST


On Sun, 2014-01-19 at 18:50 -0600, Rob Landley wrote:
> On 01/19/14 13:34, Joe Perches wrote:
> > On Sun, 2014-01-19 at 19:07 +0100, Christophe Leroy wrote:
> >> Pinging this watch as we got no feedback since 22 Nov, although we have taken
> >> into account reviews from v1 and v2.
> >>
> >> The patch adds WAN support for Lantiq FALC56 - PEF2256 E1 Chipset.
> ...
> >> +static ssize_t fs_attr_Tx_TS_store(struct device *dev,
> >> + struct device_attribute *attr, const char *buf,
> >> + size_t count)
> >> +{
> >> + struct net_device *ndev = dev_get_drvdata(dev);
> >> + struct pef2256_dev_priv *priv = dev_to_hdlc(ndev)->priv;
> >> + unsigned long value;
> >> + int ret = kstrtoul(buf, 16, (long int *)&value);
> >
> > unportable cast

> How is that not portable? It's long == pointer on Linux, which supports
> LP64 on all targets. (As do BSD, MacOSX, android, and iOS.)

Sorry, I read it wrong.
long int is the same size as long and is fine.
I thought it was just int.

Still, declaring
unsigned long foo;
and using
(long int *)&foo;

is mixing implicit and explicit styles and perhaps
should be avoided.

> Do you mean it's not portable to Windows?
> http://blogs.msdn.com/oldnewthing/archive/2005/01/31/363790.aspx

I hardly remember that stuff anymore.

cheers, Joe

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