Hi Christian,

On Thu, 28 Apr 2022 at 13:33, Christian König christian.koenig@amd.com wrote:

Am 28.04.22 um 08:39 schrieb Yuanzheng Song:

...

'cat /sys/kernel/debug/dma_buf/bufinfo' will print the Dma-buf Objects' information when the CONFIG_DEBUG_FS=y. However, the printed table header information does not contain the name field. So we need to add the name field to the table header and use the '<none>' to replace the empty buf_obj->name.

Signed-off-by: Yuanzheng Song songyuanzheng@huawei.com

Reviewed-by: Christian König christian.koenig@amd.com

Sumit do you want to push this or should I go ahead?

No worries, I can push it out.

Thanks :)

...

---

drivers/dma-buf/dma-buf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 79795857be3e..a2f9a1815e38 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -1351,7 +1351,7 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused) return ret;

  seq_puts(s, "\nDma-buf Objects:\n");

• seq_printf(s, "%-8s\t%-8s\t%-8s\t%-8s\texp_name\t%-8s\n",
  

• seq_printf(s, "%-8s\t%-8s\t%-8s\t%-8s\texp_name\t%-8s\tname\n",
             "size", "flags", "mode", "count", "ino");
  
  list_for_each_entry(buf_obj, &db_list.head, list_node) {
  

@@ -1368,7 +1368,7 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused) file_count(buf_obj->file), buf_obj->exp_name, file_inode(buf_obj->file)->i_ino,

•                         buf_obj->name ?: "");
  

•                         buf_obj->name ?: "<none>");
          spin_unlock(&buf_obj->name_lock);
  
          dma_resv_describe(buf_obj->resv, s);
  

Best, Sumit.