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From:   Xingui Yang <yangxingui@huawei.com>
To:     <john.g.garry@oracle.com>, <yanaijie@huawei.com>,
        <jejb@linux.ibm.com>, <martin.petersen@oracle.com>,
        <damien.lemoal@opensource.wdc.com>
CC:     <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linuxarm@huawei.com>, <prime.zeng@hisilicon.com>,
        <chenxiang66@hisilicon.com>, <kangfenglong@huawei.com>
Subject: [PATCH v5 0/3] Fix the failure of adding phy with zero-address to port 
Date:   Mon, 4 Dec 2023 12:29:29 +0000
Message-ID: <20231204122932.55741-1-yangxingui@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk


This series is to solve the problem of a BUG() when adding phy with zero
address to a new port.

v4 -> v5
1. Add new helper sas_port_add_ex_phy() based on John's suggestion.
2. Move sas_add_parent_port() to sas_expander.c based on John's suggestion.
3. Update the comments.

v3 -> v4:
1. Update patch title and comments based on John's suggestion.

v2 -> v3:
1. Set ex_dev->parent_port to NULL when the number of PHYs of the parent
   port becomes 0.
2. Update the comments.

v1 -> v2:
1. Set ex_phy->port with parent_port when ex_phy is added to the parent
   port.
2. Set ex_phy to NULL when free expander.
3. Update the comments.

Xingui Yang (3):
  scsi: libsas: Add helper for port add ex_phy
  scsi: libsas: Move sas_add_parent_port() to sas_expander.c
  scsi: libsas: Fix the failure of adding phy with zero-address to port

 drivers/scsi/libsas/sas_expander.c | 34 ++++++++++++++++++++++++------
 drivers/scsi/libsas/sas_internal.h | 15 -------------
 2 files changed, 28 insertions(+), 21 deletions(-)

-- 
2.17.1