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Commit 8dfb5379 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by James Bottomley
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[SCSI] advansys: Move to scsi hotplug initialisation model 



 - Switch from scsi_register/scsi_unregister to scsi_host_alloc,
   scsi_add_host, scsi_scan_host and scsi_host_put.
 - Rename the scsi_host_template to advansys_template
 - Use module_init and module_exit instead of scsi_module.c
 - Remove protection against advansys_detect being called twice

Signed-off-by: default avatarMatthew Wilcox <matthew@wil.cx>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent b2c16f58

drivers/scsi/advansys.c

+36 −25
Original line number Diff line number Diff line
@@ -3793,7 +3793,7 @@ typedef struct adv_req { 
/*

 * Structure allocated for each board.

 *

 * This structure is allocated by scsi_register() at the end

 * This structure is allocated by scsi_host_alloc() at the end

 * of the 'Scsi_Host' structure starting at the 'hostdata'

 * field. It is guaranteed to be allocated from DMA-able memory.

 */
@@ -4632,17 +4632,12 @@ advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, 
	return 0;

}













static int __init advansys_detect(struct scsi_host_template *tpnt);













static int advansys_release(struct Scsi_Host *shp);

























static struct scsi_host_template driver_template = {













static struct scsi_host_template advansys_template = {















	.proc_name = "advansys",















#ifdef CONFIG_PROC_FS















	.proc_info = advansys_proc_info,















#endif















	.name = "advansys",













	.detect = advansys_detect,













	.release = advansys_release,















	.info = advansys_info,















	.queuecommand = advansys_queuecommand,















	.eh_bus_reset_handler = advansys_reset,









@@ -4650,8 +4645,8 @@ static struct scsi_host_template driver_template = {













	.slave_configure = advansys_slave_configure,















	/*















	 * Because the driver may control an ISA adapter 'unchecked_isa_dma'













	 * must be set. The flag will be cleared in advansys_detect for non-ISA













	 * adapters. Refer to the comment in scsi_module.c for more information.













	 * must be set. The flag will be cleared in advansys_board_found













	 * for non-ISA adapters.















	 */















	.unchecked_isa_dma = 1,















	/*









@@ -4664,8 +4659,6 @@ static struct scsi_host_template driver_template = {













	.use_clustering = ENABLE_CLUSTERING,















};



























#include "scsi_module.c"



























/*















 * --- Miscellaneous Driver Functions















 */










@@ -17839,8 +17832,8 @@ advansys_board_found(int iop, struct device *dev, int bus_type)













	 * Register the adapter, get its configuration, and















	 * initialize it.















	 */













	ASC_DBG(2, "advansys_board_found: scsi_register()\n");













	shost = scsi_register(&driver_template, sizeof(asc_board_t));













	ASC_DBG(2, "advansys_board_found: scsi_host_alloc()\n");













	shost = scsi_host_alloc(&advansys_template, sizeof(asc_board_t));





























	if (!shost)















		return NULL;










@@ -18503,6 +18496,11 @@ advansys_board_found(int iop, struct device *dev, int bus_type)



























	ASC_DBG_PRT_SCSI_HOST(2, shost);



























	ret = scsi_add_host(shost, dev);













	if (ret)













		goto err_free_wide_mem;

























	scsi_scan_host(shost);















	return shost;





























 err_free_wide_mem:









@@ -18519,7 +18517,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type)













	if (boardp->ioremap_addr)















		iounmap(boardp->ioremap_addr);















 err_shost:













	scsi_unregister(shost);













	scsi_host_put(shost);















	asc_board_count--;















	return NULL;















}









@@ -18537,9 +18535,8 @@ advansys_board_found(int iop, struct device *dev, int bus_type)













 * it must not call SCSI mid-level functions including scsi_malloc()















 * and scsi_free().















 */













static int __init advansys_detect(struct scsi_host_template *tpnt)













static int __init advansys_detect(void)















{













	static int detect_called = ASC_FALSE;















	int iop;















	int bus;















	int ioport = 0;









@@ -18561,14 +18558,6 @@ static int __init advansys_detect(struct scsi_host_template *tpnt)













	};















#endif /* CONFIG_PCI */



























	if (detect_called == ASC_FALSE) {













		detect_called = ASC_TRUE;













	} else {













		printk













		    ("AdvanSys SCSI: advansys_detect() multiple calls ignored\n");













		return 0;













	}



























	ASC_DBG(1, "advansys_detect: begin\n");





























	asc_board_count = 0;










@@ -18829,6 +18818,7 @@ static int advansys_release(struct Scsi_Host *shost)













	asc_board_t *boardp;





























	ASC_DBG(1, "advansys_release: begin\n");













	scsi_remove_host(shost);















	boardp = ASC_BOARDP(shost);















	free_irq(shost->irq, shost);















	if (shost->dma_channel != NO_ISA_DMA) {









@@ -18841,7 +18831,7 @@ static int advansys_release(struct Scsi_Host *shost)













		advansys_wide_free_mem(boardp);















	}















	kfree(boardp->prtbuf);













	scsi_unregister(shost);













	scsi_host_put(shost);















	ASC_DBG(1, "advansys_release: end\n");















	return 0;















}









@@ -18867,4 +18857,25 @@ static struct pci_device_id advansys_pci_tbl[] __devinitdata = {













MODULE_DEVICE_TABLE(pci, advansys_pci_tbl);















#endif /* CONFIG_PCI */



























static int __init advansys_init(void)













{













	int count;













	count = advansys_detect();













	if (count == 0)













		return -ENODEV;

























	return 0;













}

























static void __exit advansys_exit(void)













{













	int i;

























	for (i = 0; i < asc_board_count; i++)













		advansys_release(asc_host[i]);













}

























module_init(advansys_init);













module_exit(advansys_exit);



























MODULE_LICENSE("GPL");