Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH v4 3/3] media: atomisp: Only use trace_printk if allowed | Date | Fri, 21 Aug 2020 12:18:28 +0000 |
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From: Nicolas Boichat > Sent: 21 August 2020 13:07 ... > > You might also want a #define that can set temporarily > > to enable traces in a specific file/module even though > > CONFIG_TRACE=n. > > I don't understand how traces are supposed to work with CONFIG_TRACE=n?
Probably because I meant something different :-)
You want the kernel built so that there are no (expanded) calls to trace_printf() but with support for modules that contain them.
Then I can load a module into a distro kernel that contains trace_printf() calls for debug testing.
Which is why I was suggesting a config option that only rand-config builds would ever set that would cause the calls to generate compile-time errors.
David
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