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Commit e99f8b5e authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik
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[PATCH] libata: propogate host private data from probe function 



This will let me chop the code size of several drivers right down. In
many cases the actual private data is very useful and constant for a
given host controller so being able to just pass it at probe time would
be very useful indeed (eg with the via driver would could pass the udma
clocking and reduce the code size, or with the AMD one the UDMA
multiplier and the offset)

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 29179539

drivers/scsi/libata-core.c

+2 −0
Original line number Diff line number Diff line
@@ -4563,6 +4563,7 @@ ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int 


	probe_ent->irq = pdev->irq;

	probe_ent->irq_flags = SA_SHIRQ;

	probe_ent->private_data = port[0]->private_data;



	if (ports & ATA_PORT_PRIMARY) {

		probe_ent->port[p].cmd_addr = pci_resource_start(pdev, 0);
@@ -4599,6 +4600,7 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, stru 
	probe_ent->legacy_mode = 1;

	probe_ent->n_ports = 1;

	probe_ent->hard_port_no = port_num;

	probe_ent->private_data = port->private_data;



	switch(port_num)

	{

include/linux/libata.h

+1 −0
Original line number Diff line number Diff line
@@ -405,6 +405,7 @@ struct ata_port_info { 
	unsigned long		mwdma_mask;

	unsigned long		udma_mask;

	const struct ata_port_operations *port_ops;

	void 			*private_data;

};



struct ata_timing {