mirror of https://gitee.com/openkylin/linux.git
Staging: comedi: drivers.c: Checkpatch cleanup
WARNING: Use #include <linux/io.h> instead of <asm/io.h> +#include <asm/io.h> WARNING: braces {} are not necessary for any arm of this statement + if (dev->driver) { [...] + } else { [...] WARNING: braces {} are not necessary for single statement blocks + if (insn->insn == INSN_READ) { + data[0] = (new_data[1] >> (chan - base_bitfield_channel)) & 1; + } WARNING: braces {} are not necessary for single statement blocks + if (async->prealloc_buf && async->prealloc_bufsz == new_size) { + return 0; + } WARNING: braces {} are not necessary for single statement blocks + if (async->buf_page_list[i].virt_addr == NULL) { + break; + } WARNING: braces {} are not necessary for single statement blocks + if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) { + nbytes = free_end - async->buf_write_alloc_count; + } WARNING: braces {} are not necessary for single statement blocks + if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) { + nbytes = 0; + } WARNING: braces {} are not necessary for single statement blocks + if (async->buf_write_ptr >= async->prealloc_bufsz) { + async->buf_write_ptr %= async->prealloc_bufsz; + } Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -44,7 +44,7 @@
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#include <linux/cdev.h>
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#include <linux/dma-mapping.h>
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#include <asm/io.h>
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#include <linux/io.h>
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#include <asm/system.h>
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static int postconfig(struct comedi_device *dev);
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@ -99,11 +99,10 @@ static void cleanup_device(struct comedi_device *dev)
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static void __comedi_device_detach(struct comedi_device *dev)
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{
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dev->attached = 0;
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if (dev->driver) {
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if (dev->driver)
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dev->driver->detach(dev);
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} else {
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else
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printk("BUG: dev->driver=NULL in comedi_device_detach()\n");
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}
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cleanup_device(dev);
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}
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@ -380,9 +379,8 @@ static int insn_rw_emulate_bits(struct comedi_device *dev,
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if (ret < 0)
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return ret;
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if (insn->insn == INSN_READ) {
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if (insn->insn == INSN_READ)
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data[0] = (new_data[1] >> (chan - base_bitfield_channel)) & 1;
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}
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return 1;
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}
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@ -429,9 +427,9 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
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new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK;
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/* if no change is required, do nothing */
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if (async->prealloc_buf && async->prealloc_bufsz == new_size) {
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if (async->prealloc_buf && async->prealloc_bufsz == new_size)
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return 0;
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}
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/* deallocate old buffer */
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if (async->prealloc_buf) {
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vunmap(async->prealloc_buf);
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@ -494,9 +492,9 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
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(void *)
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get_zeroed_page(GFP_KERNEL);
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}
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if (async->buf_page_list[i].virt_addr == NULL) {
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if (async->buf_page_list[i].virt_addr == NULL)
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break;
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}
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mem_map_reserve(virt_to_page
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(async->buf_page_list[i].
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virt_addr));
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@ -619,9 +617,9 @@ unsigned int comedi_buf_write_alloc(struct comedi_async *async,
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{
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unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
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if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) {
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if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0)
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nbytes = free_end - async->buf_write_alloc_count;
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}
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async->buf_write_alloc_count += nbytes;
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/* barrier insures the read of buf_read_count above occurs before
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we write data to the write-alloc'ed buffer space */
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@ -635,9 +633,9 @@ unsigned int comedi_buf_write_alloc_strict(struct comedi_async *async,
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{
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unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
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if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0) {
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if ((int)(async->buf_write_alloc_count + nbytes - free_end) > 0)
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nbytes = 0;
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}
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async->buf_write_alloc_count += nbytes;
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/* barrier insures the read of buf_read_count above occurs before
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we write data to the write-alloc'ed buffer space */
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@ -657,9 +655,9 @@ unsigned comedi_buf_write_free(struct comedi_async *async, unsigned int nbytes)
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async->buf_write_count += nbytes;
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async->buf_write_ptr += nbytes;
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comedi_buf_munge(async, async->buf_write_count - async->munge_count);
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if (async->buf_write_ptr >= async->prealloc_bufsz) {
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if (async->buf_write_ptr >= async->prealloc_bufsz)
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async->buf_write_ptr %= async->prealloc_bufsz;
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}
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return nbytes;
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}
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