On Fri, Jun 03, 2016 at 12:19:41PM +0100, Liviu Dudau wrote:

On Fri, Jun 03, 2016 at 11:36:33AM +0100, Russell King - ARM Linux wrote:

quoted

On Fri, Jun 03, 2016 at 10:40:48AM +0100, Liviu Dudau wrote:

quoted

On Fri, Jun 03, 2016 at 08:58:10AM +0100, Russell King wrote:

quoted

Convert DT component matching to use component_match_add_release().

Hi Russell,

Any reason for not keeping the component_match_add() calls in the drivers?

Sorry, I don't understand your comment.

As in: component_match_add() already exists as a macro that calls
component_match_add_release(), but with a NULL release function. If it
were to be changed to pass a default release_of() function then most of
the drivers would not have to change, right? It is just one point of
view and I was curious if there was a reason not to choose it, as it
would have (probably) generated a smaller delta?

And what should the calls that don't pass a DT node be called?
What happens to new users who aren't passing a DT node but use
component_match_add() ?

What you're suggesting sound totally insane to me: you're making
the change a flag-day: component_match_add() currently takes anything
as the data pointer and users can pass anything that their compare
function can handle - and changing that to a function which can only
take a device_node.  That means all non-DT users of that function
need to change at the same time.

Flag days are really bad news in kernel development (or any
distributed development project), and I won't generate a patch which
causes a flag day to occur - especially not one which impacts a large
number of users.

-- 
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