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Staging: altpciechdma: checkpatch fixups
Signed-off-by: Erik Andrén <erik.andren@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
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2c77cb3e05
commit
c9b8015b07
@ -312,15 +312,16 @@ static int __devinit map_bars(struct ape_dev *ape, struct pci_dev *dev)
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continue;
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/* do not map BARs with address 0 */
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if (!bar_start || !bar_end) {
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printk(KERN_DEBUG "BAR #%d is not present?!\n", i);
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printk(KERN_DEBUG "BAR #%d is not present?!\n", i);
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rc = -1;
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goto fail;
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}
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bar_length = bar_end - bar_start + 1;
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/* BAR length is less than driver requires? */
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if (bar_length < bar_min_len[i]) {
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printk(KERN_DEBUG "BAR #%d length = %lu bytes but driver "
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"requires at least %lu bytes\n", i, bar_length, bar_min_len[i]);
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printk(KERN_DEBUG "BAR #%d length = %lu bytes but driver "
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"requires at least %lu bytes\n",
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i, bar_length, bar_min_len[i]);
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rc = -1;
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goto fail;
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}
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@ -332,8 +333,8 @@ static int __devinit map_bars(struct ape_dev *ape, struct pci_dev *dev)
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rc = -1;
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goto fail;
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}
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printk(KERN_DEBUG "BAR[%d] mapped at 0x%p with length %lu(/%lu).\n", i,
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ape->bar[i], bar_min_len[i], bar_length);
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printk(KERN_DEBUG "BAR[%d] mapped at 0x%p with length %lu(/%lu).\n", i,
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ape->bar[i], bar_min_len[i], bar_length);
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}
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/* succesfully mapped all required BAR regions */
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rc = 0;
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@ -466,15 +467,14 @@ static inline int compare(u32 *p, u32 *q, int len)
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} else {
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fail++;
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/* show the first few miscompares */
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if (fail < 10) {
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printk(KERN_DEBUG "[%p] = 0x%08x != [%p] = 0x%08x ?!\n", p, *p, q, *q);
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/* but stop after a while */
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} else if (fail == 10) {
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printk(KERN_DEBUG "---more errors follow! not printed---\n");
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} else {
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if (fail < 10)
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printk(KERN_DEBUG "[%p] = 0x%08x != [%p] = 0x%08x ?!\n", p, *p, q, *q);
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/* but stop after a while */
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else if (fail == 10)
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printk(KERN_DEBUG "---more errors follow! not printed---\n");
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else
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/* stop compare after this many errors */
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break;
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}
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break;
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}
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p++;
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q++;
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@ -527,7 +527,7 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
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printk(KERN_DEBUG "ape->table_virt = 0x%p.\n", ape->table_virt);
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if (!write_header || !read_header || !ape->table_virt)
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goto fail;
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goto fail;
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/* allocate and map coherently-cached memory for a DMA-able buffer */
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/* @see Documentation/PCI/PCI-DMA-mapping.txt, near line 318 */
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@ -564,9 +564,8 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
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/* read 8192 bytes from RC buffer to EP address 4096 */
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ape_chdma_desc_set(&ape->table_virt->desc[n], buffer_bus, 4096, 2 * PAGE_SIZE);
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#if 1
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for (i = 0; i < 255; i++) {
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for (i = 0; i < 255; i++)
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ape_chdma_desc_set(&ape->table_virt->desc[i], buffer_bus, 4096, 2 * PAGE_SIZE);
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}
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/* index of last descriptor */
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n = i - 1;
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#endif
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@ -646,7 +645,7 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
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printk(KERN_DEBUG "EPLAST = %u, n = %d\n", eplast, n);
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if (eplast == n) {
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printk(KERN_DEBUG "DONE\n");
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/* print IRQ count before the transfer */
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/* print IRQ count before the transfer */
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printk(KERN_DEBUG "#IRQs during transfer: %d\n", ape->irq_count - irq_count);
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break;
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}
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@ -660,9 +659,9 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
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n = 0;
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ape_chdma_desc_set(&ape->table_virt->desc[n], buffer_bus + 8192, 4096, 2 * PAGE_SIZE);
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#if 1
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for (i = 0; i < 255; i++) {
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for (i = 0; i < 255; i++)
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ape_chdma_desc_set(&ape->table_virt->desc[i], buffer_bus + 8192, 4096, 2 * PAGE_SIZE);
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}
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/* index of last descriptor */
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n = i - 1;
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#endif
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@ -690,7 +689,7 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
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w = (u32)(n + 1);
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/* enable updates of eplast for each descriptor completion */
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w |= (u32)(1UL << 18)/*global EPLAST_EN*/;
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#if 0 // test variable, make a module option later
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#if 0 /* test variable, make a module option later */
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/* enable MSI for each descriptor completion */
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if (ape->msi_enabled)
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w |= (1UL << 17)/*global MSI*/;
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@ -714,7 +713,7 @@ static int __devinit dma_test(struct ape_dev *ape, struct pci_dev *dev)
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/** memory write barrier */
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wmb();
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/** dummy read to flush posted writes */
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//(void)ioread32();
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/* (void) ioread32(); */
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printk(KERN_DEBUG "POLL FOR WRITE:\n");
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/* poll for completion, 1000 times 1 millisecond */
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@ -843,7 +842,7 @@ static int __devinit probe(struct pci_dev *dev, const struct pci_device_id *id)
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}
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ape->got_regions = 1;
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#if 1 // @todo For now, disable 64-bit, because I do not understand the implications (DAC!)
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#if 1 /* @todo For now, disable 64-bit, because I do not understand the implications (DAC!) */
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/* query for DMA transfer */
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/* @see Documentation/PCI/PCI-DMA-mapping.txt */
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if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)) {
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@ -1048,10 +1047,9 @@ static ssize_t sg_write(struct file *file, const char __user *buf, size_t count,
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printk(KERN_DEBUG DRV_NAME "_write(buf=0x%p, count=%lld, pos=%llu)\n",
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buf, (s64)count, (u64)*pos);
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/* TODO transfer boundaries at PAGE_SIZE granularity */
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while (remaining > 0)
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{
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while (remaining > 0) {
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/* limit DMA transfer size */
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transfer_len = (remaining < APE_CHDMA_MAX_TRANSFER_LEN)? remaining:
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transfer_len = (remaining < APE_CHDMA_MAX_TRANSFER_LEN) ? remaining :
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APE_CHDMA_MAX_TRANSFER_LEN;
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/* get all user space buffer pages and create a scattergather list */
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sgm_map_user_pages(ape->sgm, transfer_addr, transfer_len, 0/*read from userspace*/);
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@ -1085,12 +1083,12 @@ static ssize_t sg_write(struct file *file, const char __user *buf, size_t count,
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/*
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* character device file operations
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*/
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static struct file_operations sg_fops = {
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.owner = THIS_MODULE,
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.open = sg_open,
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.release = sg_close,
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.read = sg_read,
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.write = sg_write,
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static const struct file_operations sg_fops = {
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.owner = THIS_MODULE,
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.open = sg_open,
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.release = sg_close,
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.read = sg_read,
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.write = sg_write,
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};
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/* sg_init() - Initialize character device
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@ -1158,12 +1156,12 @@ static struct pci_driver pci_driver = {
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*/
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static int __init alterapciechdma_init(void)
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{
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int rc = 0;
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int rc = 0;
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printk(KERN_DEBUG DRV_NAME " init(), built at " __DATE__ " " __TIME__ "\n");
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/* register this driver with the PCI bus driver */
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rc = pci_register_driver(&pci_driver);
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if (rc < 0)
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return rc;
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return rc;
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return 0;
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}
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