linux-kernel - [PATCH v4 0/2] scsi: libsas: Fix disk not being scanned in after being removed

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Date: Thu, 7 Mar 2024 14:14:11 +0000
From: Xingui Yang <yangxingui@...wei.com>
To: <john.g.garry@...cle.com>, <yanaijie@...wei.com>, <jejb@...ux.ibm.com>,
	<martin.petersen@...cle.com>, <damien.lemoal@...nsource.wdc.com>
CC: <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linuxarm@...wei.com>, <prime.zeng@...ilicon.com>,
	<chenxiang66@...ilicon.com>, <kangfenglong@...wei.com>
Subject: [PATCH v4 0/2] scsi: libsas: Fix disk not being scanned in after being removed

This patch series fixes an issue when do discovery on an empty PHY to
update PHY info after device unregister could cause newly connected device
to not be scanned.

Changes since v3:
- Revert to allocating the resp memory with alloc_smp_resp().
- Optimize goto statement.

Changes since v2:
- Based on John's suggestion, allow smp_execute_task() arguments to be on
the stack.
- Based on John's suggestion, add a helper sas_get_sas_addr_and_dev_type.
- Updated comments.

Changes since v1:
- Use sas_get_phy_discover() instead of sas_get_phy_attached_dev() in
sas_rediscover_dev() and use disc_resp to update phy info.

Xingui Yang (2):
  scsi: libsas: Add a helper sas_get_sas_addr_and_dev_type()
  scsi: libsas: Fix disk not being scanned in after being removed

 drivers/scsi/libsas/sas_expander.c | 51 ++++++++++++++++++++----------
 1 file changed, 34 insertions(+), 17 deletions(-)

-- 
2.17.1