Hello Andy, On Thu, Dec 05, 2024 at 09:52:13AM +0200, Andy Shevchenko wrote: > On Wed, Dec 04, 2024 at 11:01:11AM +0100, Uwe Kleine-König wrote: > > The definition of EXPORT_SYMBOL et al depends on > > DEFAULT_SYMBOL_NAMESPACE. So DEFAULT_SYMBOL_NAMESPACE must already be > > available when <linux/export.h> is parsed. > > > -within the corresponding compilation unit before any EXPORT_SYMBOL macro is > > -used. > > +within the corresponding compilation unit before the #include for > > +<linux/export.h>. > > And how do I know where it is included in the current state of affairs with the > dependency hell in the kernel? > > I suggest to reword it to something like "before any global inclusions", the > best probably is to repeat the piece from pr_fmt() / dev_fmt() documentation > (if any). Well, "before <linux/export.h>" is the accurate thing you have to ensure. "before any global inclusion" is the safe and easy thing to do to achieve that. Maybe: ... within the corresponding compilation unit before the #include for <linux/export.h>. Typically it's placed before the first #include. ? Best regards Uwe
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