[PARISC] Use kzalloc and other janitor-style cleanups

Helge,
  o Convert a bunch of kmalloc/memset uses to kzalloc.
  o pci.c: Add some __read_mostly annotations.
  o pci.c: Move constant pci_post_reset_delay to asm/pci.h
  o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG.
  o Add some consts to perf.c/perf_images.h

Matthew,
  o sticore.c: Add some consts to suppress compile warnings.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

arch/parisc/kernel/drivers.c

@@ -408,11 +408,10 @@ static void setup_bus_id(struct parisc_device *padev)
 
 struct parisc_device * create_tree_node(char id, struct device *parent)
 {
-	struct parisc_device *dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	struct parisc_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return NULL;
 
-	memset(dev, 0, sizeof(*dev));
 	dev->hw_path = id;
 	dev->id.hw_type = HPHW_FAULTY;
 

arch/parisc/kernel/pci.c

@@ -47,18 +47,17 @@
  * this makes the boot time much longer than necessary.
  * 20ms seems to work for all the HP PCI implementations to date.
  *
- * XXX: turn into a #defined constant in <asm/pci.h> ?
+ * #define pci_post_reset_delay 50
  */
-int pci_post_reset_delay = 50;
 
-struct pci_port_ops *pci_port;
-struct pci_bios_ops *pci_bios;
+struct pci_port_ops *pci_port __read_mostly;
+struct pci_bios_ops *pci_bios __read_mostly;
 
-int pci_hba_count = 0;
+static int pci_hba_count __read_mostly;
 
 /* parisc_pci_hba used by pci_port->in/out() ops to lookup bus data.  */
 #define PCI_HBA_MAX 32
-struct pci_hba_data *parisc_pci_hba[PCI_HBA_MAX];
+struct pci_hba_data *parisc_pci_hba[PCI_HBA_MAX] __read_mostly;
 
 
 /********************************************************************

arch/parisc/kernel/perf.c

@@ -68,20 +68,20 @@ struct rdr_tbl_ent {
 };
 
 static int perf_processor_interface __read_mostly = UNKNOWN_INTF;
-static int perf_enabled __read_mostly = 0;
+static int perf_enabled __read_mostly;
 static spinlock_t perf_lock;
-struct parisc_device *cpu_device __read_mostly = NULL;
+struct parisc_device *cpu_device __read_mostly;
 
 /* RDRs to write for PCX-W */
-static int perf_rdrs_W[] = 
+static const int perf_rdrs_W[] =
 	{ 0, 1, 4, 5, 6, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, -1 };
 
 /* RDRs to write for PCX-U */
-static int perf_rdrs_U[] =
+static const int perf_rdrs_U[] =
 	{ 0, 1, 4, 5, 6, 7, 16, 17, 18, 20, 21, 22, 23, 24, 25, -1 };
 
 /* RDR register descriptions for PCX-W */
-static struct rdr_tbl_ent perf_rdr_tbl_W[] = {
+static const struct rdr_tbl_ent perf_rdr_tbl_W[] = {
 	{ 19,	1,	8 },   /* RDR 0 */
 	{ 16,	1,	16 },  /* RDR 1 */
 	{ 72,	2,	0 },   /* RDR 2 */
@@ -117,7 +117,7 @@ static struct rdr_tbl_ent perf_rdr_tbl_W[] = {
 };
 
 /* RDR register descriptions for PCX-U */
-static struct rdr_tbl_ent perf_rdr_tbl_U[] = {
+static const struct rdr_tbl_ent perf_rdr_tbl_U[] = {
 	{ 19,	1,	8 },              /* RDR 0 */
 	{ 32,	1,	16 },             /* RDR 1 */
 	{ 20,	1,	0 },              /* RDR 2 */
@@ -156,7 +156,7 @@ static struct rdr_tbl_ent perf_rdr_tbl_U[] = {
  * A non-zero write_control in the above tables is a byte offset into
  * this array.
  */
-static uint64_t perf_bitmasks[] = {
+static const uint64_t perf_bitmasks[] = {
 	0x0000000000000000ul,     /* first dbl word must be zero */
 	0xfdffe00000000000ul,     /* RDR0 bitmask */
 	0x003f000000000000ul,     /* RDR1 bitmask */
@@ -173,7 +173,7 @@ static uint64_t perf_bitmasks[] = {
  * Write control bitmasks for Pa-8700 processor given
  * somethings have changed slightly.
  */
-static uint64_t perf_bitmasks_piranha[] = {
+static const uint64_t perf_bitmasks_piranha[] = {
 	0x0000000000000000ul,     /* first dbl word must be zero */
 	0xfdffe00000000000ul,     /* RDR0 bitmask */
 	0x003f000000000000ul,     /* RDR1 bitmask */
@@ -186,7 +186,7 @@ static uint64_t perf_bitmasks_piranha[] = {
 	0xfffc000000000000ul
 };
 
-static uint64_t *bitmask_array;   /* array of bitmasks to use */
+static const uint64_t *bitmask_array;   /* array of bitmasks to use */
 
 /******************************************************************************
  * Function Prototypes
@@ -200,7 +200,7 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 static void perf_start_counters(void);
 static int perf_stop_counters(uint32_t *raddr);
-static struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num);
+static const struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num);
 static int perf_rdr_read_ubuf(uint32_t	rdr_num, uint64_t *buffer);
 static int perf_rdr_clear(uint32_t rdr_num);
 static int perf_write_image(uint64_t *memaddr);
@@ -655,7 +655,7 @@ static int perf_stop_counters(uint32_t *raddr)
  * Retrieve a pointer to the description of what this
  * RDR contains.
  */
-static struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num)
+static const struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num)
 {
 	if (perf_processor_interface == ONYX_INTF) {
 		return &perf_rdr_tbl_U[rdr_num];
@@ -673,7 +673,7 @@ static int perf_rdr_read_ubuf(uint32_t	rdr_num, uint64_t *buffer)
 {
 	uint64_t	data, data_mask = 0;
 	uint32_t	width, xbits, i;
-	struct rdr_tbl_ent *tentry;
+	const struct rdr_tbl_ent *tentry;
 
 	tentry = perf_rdr_get_entry(rdr_num);
 	if ((width = tentry->width) == 0)
@@ -721,7 +721,7 @@ static int perf_rdr_read_ubuf(uint32_t	rdr_num, uint64_t *buffer)
  */
 static int perf_rdr_clear(uint32_t	rdr_num)
 {
-	struct rdr_tbl_ent *tentry;
+	const struct rdr_tbl_ent *tentry;
 	int32_t		i;
 
 	tentry = perf_rdr_get_entry(rdr_num);
@@ -753,10 +753,11 @@ static int perf_write_image(uint64_t *memaddr)
 	uint64_t buffer[MAX_RDR_WORDS];
 	uint64_t *bptr;
 	uint32_t dwords;
-	uint32_t *intrigue_rdr;
-	uint64_t *intrigue_bitmask, tmp64;
+	const uint32_t *intrigue_rdr;
+	const uint64_t *intrigue_bitmask;
+	uint64_t tmp64;
 	void __iomem *runway;
-	struct rdr_tbl_ent *tentry;
+	const struct rdr_tbl_ent *tentry;
 	int i;
 
 	/* Clear out counters */
@@ -830,7 +831,7 @@ static int perf_write_image(uint64_t *memaddr)
  */
 static void perf_rdr_write(uint32_t rdr_num, uint64_t *buffer)
 {
-	struct rdr_tbl_ent *tentry;
+	const struct rdr_tbl_ent *tentry;
 	int32_t		i;
 
 printk("perf_rdr_write\n");

arch/parisc/kernel/perf_images.h

@@ -25,7 +25,7 @@
 
 #define PCXU_IMAGE_SIZE 584
 
-static uint32_t onyx_images[][PCXU_IMAGE_SIZE/sizeof(uint32_t)] = {
+static uint32_t onyx_images[][PCXU_IMAGE_SIZE/sizeof(uint32_t)] __read_mostly = {
 /*
  * CPI:
  *
@@ -2093,7 +2093,7 @@ static uint32_t onyx_images[][PCXU_IMAGE_SIZE/sizeof(uint32_t)] = {
 };
 #define PCXW_IMAGE_SIZE 576
 
-static uint32_t cuda_images[][PCXW_IMAGE_SIZE/sizeof(uint32_t)] = {
+static uint32_t cuda_images[][PCXW_IMAGE_SIZE/sizeof(uint32_t)] __read_mostly = {
 /*
  * CPI:     FROM CPI.IDF (Image 0)
  *

arch/parisc/kernel/traps.c

@@ -193,10 +193,9 @@ void show_stack(struct task_struct *task, unsigned long *s)
 
 HERE:
 		asm volatile ("copy %%r30, %0" : "=r"(sp));
-		r = (struct pt_regs *)kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
+		r = kzalloc(sizeof(struct pt_regs), GFP_KERNEL);
 		if (!r)
 			return;
-		memset(r, 0, sizeof(struct pt_regs));
 		r->iaoq[0] = (unsigned long)&&HERE;
 		r->gr[2] = (unsigned long)__builtin_return_address(0);
 		r->gr[30] = sp;

drivers/parisc/ccio-dma.c

@@ -1423,7 +1423,7 @@ static void __init ccio_init_resources(struct ioc *ioc)
 	struct resource *res = ioc->mmio_region;
 	char *name = kmalloc(14, GFP_KERNEL);
 
-	sprintf(name, "GSC Bus [%d/]", ioc->hw_path);
+	snprintf(name, 14, "GSC Bus [%d/]", ioc->hw_path);
 
 	ccio_init_resource(res, name, &ioc->ioc_regs->io_io_low);
 	ccio_init_resource(res + 1, name, &ioc->ioc_regs->io_io_low_hv);
@@ -1557,12 +1557,11 @@ static int ccio_probe(struct parisc_device *dev)
 	int i;
 	struct ioc *ioc, **ioc_p = &ioc_list;
 
-	ioc = kmalloc(sizeof(struct ioc), GFP_KERNEL);
+	ioc = kzalloc(sizeof(struct ioc), GFP_KERNEL);
 	if (ioc == NULL) {
 		printk(KERN_ERR MODULE_NAME ": memory allocation failure\n");
 		return 1;
 	}
-	memset(ioc, 0, sizeof(struct ioc));
 
 	ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
 
@@ -1578,7 +1577,7 @@ static int ccio_probe(struct parisc_device *dev)
 	ccio_ioc_init(ioc);
 	ccio_init_resources(ioc);
 	hppa_dma_ops = &ccio_ops;
-	dev->dev.platform_data = kmalloc(sizeof(struct pci_hba_data), GFP_KERNEL);
+	dev->dev.platform_data = kzalloc(sizeof(struct pci_hba_data), GFP_KERNEL);
 
 	/* if this fails, no I/O cards will work, so may as well bug */
 	BUG_ON(dev->dev.platform_data == NULL);

drivers/parisc/dino.c

@@ -989,14 +989,12 @@ static int __init dino_probe(struct parisc_device *dev)
 */
 	}
 
-	dino_dev = kmalloc(sizeof(struct dino_device), GFP_KERNEL);
+	dino_dev = kzalloc(sizeof(struct dino_device), GFP_KERNEL);
 	if (!dino_dev) {
 		printk("dino_init_chip - couldn't alloc dino_device\n");
 		return 1;
 	}
 
-	memset(dino_dev, 0, sizeof(struct dino_device));
-
 	dino_dev->hba.dev = dev;
 	dino_dev->hba.base_addr = ioremap(hpa, 4096);
 	dino_dev->hba.lmmio_space_offset = 0;	/* CPU addrs == bus addrs */

drivers/parisc/hppb.c

@@ -60,12 +60,11 @@ static int hppb_probe(struct parisc_device *dev)
 	}
 
 	if(card->hpa) {
-		card->next = kmalloc(sizeof(struct hppb_card), GFP_KERNEL);
+		card->next = kzalloc(sizeof(struct hppb_card), GFP_KERNEL);
 		if(!card->next) {
 			printk(KERN_ERR "HP-PB: Unable to allocate memory.\n");
 			return 1;
 		}
-		memset(card->next, '\0', sizeof(struct hppb_card));
 		card = card->next;
 	}
         printk(KERN_INFO "Found GeckoBoa at 0x%lx\n", dev->hpa.start);

drivers/parisc/iosapic.c

@@ -873,28 +873,24 @@ void *iosapic_register(unsigned long hpa)
 		return NULL;
 	}
 
-	isi = (struct iosapic_info *)kmalloc(sizeof(struct iosapic_info), GFP_KERNEL);
+	isi = (struct iosapic_info *)kzalloc(sizeof(struct iosapic_info), GFP_KERNEL);
 	if (!isi) {
 		BUG();
 		return NULL;
 	}
 
-	memset(isi, 0, sizeof(struct iosapic_info));
-
 	isi->addr = ioremap(hpa, 4096);
 	isi->isi_hpa = hpa;
 	isi->isi_version = iosapic_rd_version(isi);
 	isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
 
 	vip = isi->isi_vector = (struct vector_info *)
-		kmalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
+		kzalloc(sizeof(struct vector_info) * isi->isi_num_vectors, GFP_KERNEL);
 	if (vip == NULL) {
 		kfree(isi);
 		return NULL;
 	}
 
-	memset(vip, 0, sizeof(struct vector_info) * isi->isi_num_vectors);
-
 	for (cnt=0; cnt < isi->isi_num_vectors; cnt++, vip++) {
 		vip->irqline = (unsigned char) cnt;
 		vip->iosapic = isi;

drivers/parisc/lasi.c

@@ -170,7 +170,7 @@ lasi_init_chip(struct parisc_device *dev)
 	struct gsc_irq gsc_irq;
 	int ret;
 
-	lasi = kmalloc(sizeof(*lasi), GFP_KERNEL);
+	lasi = kzalloc(sizeof(*lasi), GFP_KERNEL);
 	if (!lasi)
 		return -ENOMEM;
 

drivers/parisc/lba_pci.c

@@ -1565,7 +1565,7 @@ lba_driver_probe(struct parisc_device *dev)
 	} else if (IS_MERCURY(dev) || IS_QUICKSILVER(dev)) {
 		func_class &= 0xff;
 		version = kmalloc(6, GFP_KERNEL);
-		sprintf(version,"TR%d.%d",(func_class >> 4),(func_class & 0xf));
+		snprintf(version, 6, "TR%d.%d",(func_class >> 4),(func_class & 0xf));
 		/* We could use one printk for both Elroy and Mercury,
                  * but for the mask for func_class.
                  */ 
@@ -1586,14 +1586,12 @@ lba_driver_probe(struct parisc_device *dev)
 	**	have an IRT entry will get NULL back from iosapic code.
 	*/
 
-	lba_dev = kmalloc(sizeof(struct lba_device), GFP_KERNEL);
+	lba_dev = kzalloc(sizeof(struct lba_device), GFP_KERNEL);
 	if (!lba_dev) {
 		printk(KERN_ERR "lba_init_chip - couldn't alloc lba_device\n");
 		return(1);
 	}
 
-	memset(lba_dev, 0, sizeof(struct lba_device));
-
 
 	/* ---------- First : initialize data we already have --------- */
 

drivers/parisc/sba_iommu.c

@@ -2064,14 +2064,13 @@ sba_driver_callback(struct parisc_device *dev)
 	printk(KERN_INFO "%s found %s at 0x%lx\n",
 		MODULE_NAME, version, dev->hpa.start);
 
-	sba_dev = kmalloc(sizeof(struct sba_device), GFP_KERNEL);
+	sba_dev = kzalloc(sizeof(struct sba_device), GFP_KERNEL);
 	if (!sba_dev) {
 		printk(KERN_ERR MODULE_NAME " - couldn't alloc sba_device\n");
 		return -ENOMEM;
 	}
 
 	parisc_set_drvdata(dev, sba_dev);
-	memset(sba_dev, 0, sizeof(struct sba_device));
 
 	for(i=0; i<MAX_IOC; i++)
 		spin_lock_init(&(sba_dev->ioc[i].res_lock));

drivers/parisc/wax.c

@@ -76,7 +76,7 @@ wax_init_chip(struct parisc_device *dev)
 	struct gsc_irq gsc_irq;
 	int ret;
 
-	wax = kmalloc(sizeof(*wax), GFP_KERNEL);
+	wax = kzalloc(sizeof(*wax), GFP_KERNEL);
 	if (!wax)
 		return -ENOMEM;
 

drivers/parport/parport_gsc.c

@@ -249,7 +249,7 @@ struct parport *__devinit parport_gsc_probe_port (unsigned long base,
 	struct parport tmp;
 	struct parport *p = &tmp;
 
-	priv = kmalloc (sizeof (struct parport_gsc_private), GFP_KERNEL);
+	priv = kzalloc (sizeof (struct parport_gsc_private), GFP_KERNEL);
 	if (!priv) {
 		printk (KERN_DEBUG "parport (0x%lx): no memory!\n", base);
 		return NULL;