[PATCH] libata: add ata_dev_pair helper (ebdfca6e) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/scsi/libata-core.c

+17 −0

Original line number	Diff line number	Diff line
		@@ -1575,6 +1575,23 @@ void sata_phy_reset(struct ata_port *ap)
		ata_bus_reset(ap);
		}

		/**
		* ata_dev_pair - return other device on cable
		* @ap: port
		* @adev: device
		*
		* Obtain the other device on the same cable, or if none is
		* present NULL is returned
		*/

		struct ata_device ata_dev_pair(struct ata_port ap, struct ata_device *adev)
		{
		struct ata_device *pair = &ap->device[1 - adev->devno];
		if (!ata_dev_present(pair))
		return NULL;
		return pair;
		}

		/**
		* ata_port_disable - Disable port.
		* @ap: Port to be disabled.

+2 −0

Original line number	Diff line number	Diff line
		@@ -573,6 +573,8 @@ extern int ata_std_bios_param(struct scsi_device *sdev,
		struct block_device *bdev,
		sector_t capacity, int geom[]);
		extern int ata_scsi_slave_config(struct scsi_device *sdev);
		extern struct ata_device ata_dev_pair(struct ata_port ap,
		struct ata_device *adev);

		/*
		* Timing helpers