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authorTejun Heo <htejun@gmail.com>2007-10-24 15:21:26 +0900
committerJeff Garzik <jeff@garzik.org>2007-10-25 02:02:02 -0400
commit0e06d9ce7a49d2ef2858cf07b44a324fc3a4c192 (patch)
treec5dba8cb1a58aa6f002f19bf56aca53db64320dc
parent741b776335c3e91b0b8bf765a97f9484a3cd5034 (diff)
libata: cosmetic clean up in ata_eh_reset()
Local variable @action usage in ata_eh_reset() is a bit confusing. It's used only to cache ehc->i.action to test reset masks after clearing it; however, due to the generic name "action", it's easy to misinterpret the local variable as containing the selected reset method later. Also, the reason for caching the original value is easy to miss. This patch renames @action to @tmp_action and make it buffer newly selected value instead to improve readability. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/ata/libata-eh.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 93e2b545b43..8cb35bb8760 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2071,7 +2071,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
int try = 0;
struct ata_device *dev;
unsigned long deadline;
- unsigned int action;
+ unsigned int tmp_action;
ata_reset_fn_t reset;
unsigned long flags;
int rc;
@@ -2086,14 +2086,14 @@ int ata_eh_reset(struct ata_link *link, int classify,
/* Determine which reset to use and record in ehc->i.action.
* prereset() may examine and modify it.
*/
- action = ehc->i.action;
- ehc->i.action &= ~ATA_EH_RESET_MASK;
if (softreset && (!hardreset || (!(link->flags & ATA_LFLAG_NO_SRST) &&
!sata_set_spd_needed(link) &&
- !(action & ATA_EH_HARDRESET))))
- ehc->i.action |= ATA_EH_SOFTRESET;
+ !(ehc->i.action & ATA_EH_HARDRESET))))
+ tmp_action = ATA_EH_SOFTRESET;
else
- ehc->i.action |= ATA_EH_HARDRESET;
+ tmp_action = ATA_EH_HARDRESET;
+
+ ehc->i.action = (ehc->i.action & ~ATA_EH_RESET_MASK) | tmp_action;
if (prereset) {
rc = prereset(link, jiffies + ATA_EH_PRERESET_TIMEOUT);