Commit 04d0608b authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Jonathan Corbet
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docs: core-api/printk-formats.rst: Clarify formatting {cpu,node}mask 



Clarify how to pass the field width for bitmaps, and mention the helper
macros that are available to ease printing cpumask and nodemask.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201110144121.3278667-1-geert+renesas@glider.be


Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent bfe7bf31

Documentation/core-api/printk-formats.rst

+3 −1
Original line number Diff line number Diff line
@@ -531,7 +531,9 @@ For printing bitmap and its derivatives such as cpumask and nodemask, 
%*pb outputs the bitmap with field width as the number of bits and %*pbl

output the bitmap as range list with field width as the number of bits.



Passed by reference.

The field width is passed by value, the bitmap is passed by reference.

Helper macros cpumask_pr_args() and nodemask_pr_args() are available to ease

printing cpumask and nodemask.



Flags bitfields such as page flags, gfp_flags

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