patch 1/2: Remove clearing bmdma status from cdrom_decode_status() since ATA devices might need it as well. (http://lkml.org/lkml/2006/12/4/201 and http://lkml.org/lkml/2006/11/15/94) Signed-off-by: Albert Lee <albertcc@xxxxxxxxxx> --- diff -Nrup 00_ide_dma/drivers/ide/ide-cd.c 01_remove_from_ide_cd/drivers/ide/ide-cd.c --- 00_ide_dma/drivers/ide/ide-cd.c 2007-01-23 11:47:42.000000000 +0800 +++ 01_remove_from_ide_cd/drivers/ide/ide-cd.c 2007-01-24 11:00:03.000000000 +0800 @@ -687,15 +687,8 @@ static void ide_dump_status_no_sense(ide static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) { struct request *rq = HWGROUP(drive)->rq; - ide_hwif_t *hwif = HWIF(drive); int stat, err, sense_key; - /* We may have bogus DMA interrupts in PIO state here */ - if (HWIF(drive)->dma_status && hwif->atapi_irq_bogon) { - stat = hwif->INB(hwif->dma_status); - /* Should we force the bit as well ? */ - hwif->OUTB(stat, hwif->dma_status); - } /* Check for errors. */ stat = HWIF(drive)->INB(IDE_STATUS_REG); if (stat_ret) diff -Nrup 00_ide_dma/drivers/ide/pci/piix.c 01_remove_from_ide_cd/drivers/ide/pci/piix.c --- 00_ide_dma/drivers/ide/pci/piix.c 2007-01-23 11:47:42.000000000 +0800 +++ 01_remove_from_ide_cd/drivers/ide/pci/piix.c 2007-01-24 11:00:03.000000000 +0800 @@ -473,10 +473,6 @@ static void __devinit init_hwif_piix(ide /* This is a painful system best to let it self tune for now */ return; } - /* ESB2 appears to generate spurious DMA interrupts in PIO mode - when in native mode */ - if (hwif->pci_dev->device == PCI_DEVICE_ID_INTEL_ESB2_18) - hwif->atapi_irq_bogon = 1; hwif->autodma = 0; hwif->tuneproc = &piix_tune_drive; diff -Nrup 00_ide_dma/include/linux/ide.h 01_remove_from_ide_cd/include/linux/ide.h --- 00_ide_dma/include/linux/ide.h 2007-01-23 11:47:48.000000000 +0800 +++ 01_remove_from_ide_cd/include/linux/ide.h 2007-01-24 11:00:03.000000000 +0800 @@ -796,7 +796,6 @@ typedef struct hwif_s { unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ unsigned no_io_32bit : 1; /* 1 = can not do 32-bit IO ops */ unsigned err_stops_fifo : 1; /* 1=data FIFO is cleared by an error */ - unsigned atapi_irq_bogon : 1; /* Generates spurious DMA interrupts in PIO mode */ struct device gendev; struct completion gendev_rel_comp; /* To deal with device release() */ - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
