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powerpc/watchdog: improve watchdog comments
authorNicholas Piggin <npiggin@gmail.com>
Wed, 1 Nov 2017 00:27:33 +0000 (11:27 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Sun, 21 Jan 2018 04:06:26 +0000 (15:06 +1100)
commit723b113319baa8d8b5f619a94348fa5b3a78bc94
tree7763512d8c7ab94394ecbc01f3f8dc33d22e2a34
parent8183d99f4a22c2abbc543847a588df3666ef0c0c
powerpc/watchdog: improve watchdog comments

The overview comments in the powerpc watchdog are out of date after
several iterations and changes of the code. Bring them up to date.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/watchdog.c