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(parent: 2a7f87e) | patch
printk: ringbuffer: add BLK_DATALESS() macro
authorJohn Ogness <john.ogness@linutronix.de>
Mon, 14 Sep 2020 12:33:50 +0000 (14:39 +0206)
committerPetr Mladek <pmladek@suse.com>
Tue, 15 Sep 2020 13:44:49 +0000 (15:44 +0200)
commite3bc0401c1de2feb15601685b85b4dea45130386
tree4382d0415d7f72a7fb9a9cde0ebe4f80573e871etree | snapshot
parent2a7f87ed05b9035ef818d0f46fe6aef5640224e3commit | diff
printk: ringbuffer: add BLK_DATALESS() macro

Rather than continually needing to explicitly check @begin and @next
to identify a dataless block, introduce and use a BLK_DATALESS()
macro.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20200914123354.832-3-john.ogness@linutronix.de
kernel/printk/printk_ringbuffer.c diff | blob | history
Domain: System / Kernel;