On Wed 2020-06-17 17:17:21, Herbert Xu wrote:
> As it stands if you include printk.h by itself it will fail to
> compile because it requires definitions from ratelimit.h.  However,
> simply including ratelimit.h from printk.h does not work due to
> inclusion loops involving sched.h and kernel.h.
> 
> This patch solves this by moving bits from ratelimit.h into a new
> header file which can then be included by printk.h without any
> worries about header loops.
> 
> The build bot then revealed some intriguing failures arising out
> of this patch.  On s390 there is an inclusion loop with asm/bug.h
> and linux/kernel.h that triggers a compile failure, because kernel.h
> will cause asm-generic/bug.h to be included before s390's own
> asm/bug.h has finished processing.  This has been fixed by not
> including kernel.h in arch/s390/include/asm/bug.h.
> 
> Signed-off-by: Herbert Xu <[email protected]>
> Reviewed-by: Andy Shevchenko <[email protected]>
> Reviewed-by: Sergey Senozhatsky <[email protected]>
> Acked-by: Petr Mladek <[email protected]>
> Acked-by: Steven Rostedt (VMware) <[email protected]>

JFYI, the patch has been committed into printk/linux.git,
branch for-5.9.

Best Regards,
Petr

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