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dma-buf: update debugfs output

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Russell King observed 'wierd' looking output from debugfs, and also suggested
better ways of getting device names (use KBUILD_MODNAME, dev_name())

This patch addresses these issues to make the debugfs output correct and better
looking.

While at it, replace seq_printf with seq_puts to remove the checkpatch.pl
warnings.

Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
This commit is contained in:
Sumit Semwal 2014-02-03 15:09:12 +05:30
commit c0b00a525c
2 changed files with 13 additions and 14 deletions
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23
drivers/base/dma-buf.c
View file

@ -616,36 +616,35 @@ static int dma_buf_describe(struct seq_file *s)
if (ret)
return ret;
seq_printf(s, "\nDma-buf Objects:\n");
seq_printf(s, "\texp_name\tsize\tflags\tmode\tcount\n");
seq_puts(s, "\nDma-buf Objects:\n");
seq_puts(s, "size\tflags\tmode\tcount\texp_name\n");
list_for_each_entry(buf_obj, &db_list.head, list_node) {
ret = mutex_lock_interruptible(&buf_obj->lock);
if (ret) {
seq_printf(s,
seq_puts(s,
"\tERROR locking buffer object: skipping\n");
continue;
}
seq_printf(s, "\t");
seq_printf(s, "\t%s\t%08zu\t%08x\t%08x\t%08ld\n",
buf_obj->exp_name, buf_obj->size,
seq_printf(s, "%08zu\t%08x\t%08x\t%08ld\t%s\n",
buf_obj->size,
buf_obj->file->f_flags, buf_obj->file->f_mode,
(long)(buf_obj->file->f_count.counter));
(long)(buf_obj->file->f_count.counter),
buf_obj->exp_name);
seq_printf(s, "\t\tAttached Devices:\n");
seq_puts(s, "\tAttached Devices:\n");
attach_count = 0;
list_for_each_entry(attach_obj, &buf_obj->attachments, node) {
seq_printf(s, "\t\t");
seq_puts(s, "\t");
seq_printf(s, "%s\n", attach_obj->dev->init_name);
seq_printf(s, "%s\n", dev_name(attach_obj->dev));
attach_count++;
}
seq_printf(s, "\n\t\tTotal %d devices attached\n",
seq_printf(s, "Total %d devices attached\n\n",
attach_count);
count++;

2
include/linux/dma-buf.h
View file

@ -171,7 +171,7 @@ struct dma_buf *dma_buf_export_named(void *priv, const struct dma_buf_ops *ops,
size_t size, int flags, const char *);
#define dma_buf_export(priv, ops, size, flags) \
dma_buf_export_named(priv, ops, size, flags, __FILE__)
dma_buf_export_named(priv, ops, size, flags, KBUILD_MODNAME)
int dma_buf_fd(struct dma_buf *dmabuf, int flags);
struct dma_buf *dma_buf_get(int fd);