Messages in this thread | | | From | Rob Herring <> | Date | Fri, 28 Aug 2020 17:09:52 -0600 | Subject | Re: [PATCH] of: of_match_node: Make stub an inline function to avoid W=1 warnings |
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On Fri, Aug 28, 2020 at 7:00 AM Andrew Lunn <andrew@lunn.ch> wrote: > > On Fri, Aug 28, 2020 at 04:19:39AM +0200, Andrew Lunn wrote: > > When building without CONFIG_OF and W=1, errors are given about unused > > arrays of match data, because of_match_node is stubbed as a macro. The > > compile does not see it takes parameters when not astub, so it > > generates warnings about unused variables. Replace the stub with an > > inline function to avoid these false warnings. > > Hi Rob > > So 0-day shows some people have worked around this with #ifdef > CONFIG_OF around the match table. > > I checked the object code for the file i'm interested in. The > optimiser has correctly throw away the match table and all code around > it with the inline stub. > > Which do you prefer? This patch and i remove the #ifdef, or the old > stub and if add #ifdef around the driver i'm getting warnings from?
Use of_device_get_match_data instead of of_match_node.
Rob
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