linux-kernel - [PATCH 8/8] parisc: remove the HBA

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Date:   Tue, 29 Jan 2019 19:13:10 +0100
From:   Christoph Hellwig <hch@....de>
To:     "James E.J. Bottomley" <jejb@...isc-linux.org>,
        Helge Deller <deller@....de>
Cc:     linux-parisc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 8/8] parisc: remove the HBA_DATA macro

No need to hide a cast in a macro, especially as all users have
cleaner ways to archive the result than blind casting.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 arch/parisc/include/asm/pci.h | 2 --
 drivers/parisc/ccio-dma.c     | 9 ++++++---
 drivers/parisc/lba_pci.c      | 6 +++---
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 00f763688401..f14465b84de4 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -66,8 +66,6 @@ struct pci_hba_data {
 	char gmmio_name[HBA_NAME_SIZE];
 };
 
-#define HBA_DATA(d)		((struct pci_hba_data *) (d))
-
 /* 
 ** We support 2^16 I/O ports per HBA.  These are set up in the form
 ** 0xbbxxxx, where bb is the bus number and xxxx is the I/O port
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b17e81cf77d5..097b0d43d13c 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1519,6 +1519,7 @@ static int __init ccio_probe(struct parisc_device *dev)
 {
 	int i;
 	struct ioc *ioc, **ioc_p = &ioc_list;
+	struct pci_hba_data *hba;
 
 	ioc = kzalloc(sizeof(struct ioc), GFP_KERNEL);
 	if (ioc == NULL) {
@@ -1545,11 +1546,13 @@ static int __init ccio_probe(struct parisc_device *dev)
 	ccio_ioc_init(ioc);
 	ccio_init_resources(ioc);
 	hppa_dma_ops = &ccio_ops;
-	dev->dev.platform_data = kzalloc(sizeof(struct pci_hba_data), GFP_KERNEL);
 
+	hba = kzalloc(sizeof(*hba), GFP_KERNEL);
 	/* if this fails, no I/O cards will work, so may as well bug */
-	BUG_ON(dev->dev.platform_data == NULL);
-	HBA_DATA(dev->dev.platform_data)->iommu = ioc;
+	BUG_ON(hba == NULL);
+
+	hba->iommu = ioc;
+	dev->dev.platform_data = hba;
 
 #ifdef CONFIG_PROC_FS
 	if (ioc_count == 0) {
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 065d88868402..9047cc22c155 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1275,7 +1275,7 @@ lba_legacy_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		r->flags = IORESOURCE_MEM;
 		/* mmio_mask also clears Enable bit */
 		r->start &= mmio_mask;
-		r->start = PCI_HOST_ADDR(HBA_DATA(lba_dev), r->start);
+		r->start = PCI_HOST_ADDR(&lba_dev->hba, r->start);
 		rsize = ~ READ_REG32(lba_dev->hba.base_addr + LBA_LMMIO_MASK);
 
 		/*
@@ -1321,7 +1321,7 @@ lba_legacy_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
 		r->flags = IORESOURCE_MEM;
 		/* mmio_mask also clears Enable bit */
 		r->start &= mmio_mask;
-		r->start = PCI_HOST_ADDR(HBA_DATA(lba_dev), r->start);
+		r->start = PCI_HOST_ADDR(&lba_dev->hba, r->start);
 		rsize = READ_REG32(lba_dev->hba.base_addr + LBA_ELMMIO_MASK);
 		r->end = r->start + ~rsize;
 	}
@@ -1562,7 +1562,7 @@ lba_driver_probe(struct parisc_device *dev)
 
 	/* ------------ Second : initialize common stuff ---------- */
 	pci_bios = &lba_bios_ops;
-	pcibios_register_hba(HBA_DATA(lba_dev));
+	pcibios_register_hba(&lba_dev->hba);
 	spin_lock_init(&lba_dev->lba_lock);
 
 	if (lba_hw_init(lba_dev))
-- 
2.20.1