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@xxxxxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Sumit do you want to push this or should I go ahead?
---
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);
