From: Tejun Heo <htejun@gmail.com>
Date: Fri, 17 Nov 2006 03:05:11 +0000 (+0900)
Subject: [PATCH] libata: remove unused HSM_ST_UNKNOWN
X-Git-Tag: v2.6.20-rc1~34^2~40^2~9^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=582982e6991d6718ddadf8751072b50a850dde48;p=pandora-kernel.git

[PATCH] libata: remove unused HSM_ST_UNKNOWN

HSM_ST_UNKNOWN is not used anywhere.  Its value is zero and supposed
to serve sanity check purpose but HSM_ST_IDLE is used for that
purpose.  This unused state causes confusion.  After a port is
initialized but before the first command is executed, the idle hsm
state is UNKNOWN.  However, once a command has completed, the idle hsm
state is IDLE.  This defeats sanity check in ata_pio_task() for the
first command.

This patch removes HSM_ST_UNKNOWN and consequently make HSM_ST_IDLE
the default state.

Signed-off-by: Tejun Heo <htejun@gmail.com>
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