Messages in this thread | | | Date | Mon, 30 Jan 2023 14:05:54 +0200 | From | Andy Shevchenko <> | Subject | Re: [PATCH v2 04/11] gpiolib: Clear the gpio_device's fwnode initialized flag before adding |
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On Fri, Jan 27, 2023 at 11:33:38PM -0800, Saravana Kannan wrote: > On Fri, Jan 27, 2023 at 1:27 AM Andy Shevchenko > <andriy.shevchenko@linux.intel.com> wrote: > > On Thu, Jan 26, 2023 at 04:11:31PM -0800, Saravana Kannan wrote:
...
> > > + /* > > > + * If fwnode doesn't belong to another device, it's safe to clear its > > > + * initialized flag. > > > + */ > > > + if (!gdev->dev.fwnode->dev) > > > + fwnode_dev_initialized(gdev->dev.fwnode, false); > > > > Do not dereference fwnode in struct device. Use dev_fwnode() for that. > > > > struct fwnode_handle *fwnode = dev_fwnode(&gdev->dev); > > > > if (!fwnode->dev) > > fwnode_dev_initialized(fwnode, false); > > Honestly, we should work towards NOT needing dev_fwnode().
Honestly, it's that We SHOULD go to avoid any direct dereference of fwnode from the struct device. I explained you in the comment in the other patch.
> The > function literally dereferences dev->fwnode or the one inside of_node. > So my dereference is fine. The whole "fwnode might not be set for > devices with of_node" is wrong and we should fix that instead of > writing wrappers to work around it. > > Also, for now I'm going to leave this as if for the same reasons as I > mentioned in Patch 1.
Same.
-- With Best Regards, Andy Shevchenko
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