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authorTejun Heo <htejun@gmail.com>2006-12-03 15:34:13 +0300
committerJeff Garzik <jeff@garzik.org>2006-12-03 15:58:10 +0300
commit800b399669ad495ad4361d134df87401ae36f44f (patch)
tree19e29f655836cd4808c668d736a83df552b7d8dd /include/linux/libata.h
parent3ac551a6a63dcbc707348772a27bd7090b081524 (diff)
downloadlinux-800b399669ad495ad4361d134df87401ae36f44f.tar.xz
[PATCH] libata: always use polling IDENTIFY
libata switched to IRQ-driven IDENTIFY when IRQ-driven PIO was introduced. This has caused a lot of problems including device misdetection and phantom device. ATA_FLAG_DETECT_POLLING was added recently to selectively use polling IDENTIFY on problemetic drivers but many controllers and devices are affected by this problem and trying to adding ATA_FLAG_DETECT_POLLING for each such case is diffcult and not very rewarding. This patch makes libata always use polling IDENTIFY. This is consistent with libata's original behavior and drivers/ide's behavior. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 8b57b6a806cc..202283b5df96 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -176,9 +176,7 @@ enum {
ATA_FLAG_SKIP_D2H_BSY = (1 << 12), /* can't wait for the first D2H
* Register FIS clearing BSY */
ATA_FLAG_DEBUGMSG = (1 << 13),
- ATA_FLAG_DETECT_POLLING = (1 << 14), /* detect device presence by
- * polling IDENTIFY */
- ATA_FLAG_SETXFER_POLLING= (1 << 15), /* use polling for SETXFER */
+ ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
/* The following flag belongs to ap->pflags but is kept in
* ap->flags because it's referenced in many LLDs and will be