From 2d08f329a4f2eace6b041d60132f441fc8e0b616 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Wed, 28 Sep 2022 15:01:24 +0800 Subject: scsi: libsas: Introduce sas_find_attached_phy_id() helper LLDDs are all implementing their own attached phy ID finding code. Factor it out to libsas. Signed-off-by: Jason Yan Link: https://lore.kernel.org/r/20220928070130.3657183-3-yanaijie@huawei.com Reviewed-by: Jack Wang Reviewed-by: Damien Le Moal Reviewed-by: John Garry Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/libsas/sas_expander.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 5ce251830104..7ffb42946335 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -2107,6 +2107,22 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev) return res; } +int sas_find_attached_phy_id(struct expander_device *ex_dev, + struct domain_device *dev) +{ + struct ex_phy *phy; + int phy_id; + + for (phy_id = 0; phy_id < ex_dev->num_phys; phy_id++) { + phy = &ex_dev->ex_phy[phy_id]; + if (sas_phy_match_dev_addr(dev, phy)) + return phy_id; + } + + return -ENODEV; +} +EXPORT_SYMBOL_GPL(sas_find_attached_phy_id); + void sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost, struct sas_rphy *rphy) { -- cgit v1.2.3