dma-buf: Remove unused sync_dump()

sync_dump() is an unused, unexported, function that adds 64k to the
kernel image and doesn't even provide locking around the global array it
uses.

add/remove: 0/2 grow/shrink: 0/0 up/down: 0/-65734 (-65734)
Function                                     old     new   delta
sync_dump                                    198       -    -198
sync_dump_buf                              65536       -  -65536

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419181904.6199-1-chris@chris-wilson.co.uk

diff --git a/drivers/dma-buf/sync_debug.c b/drivers/dma-buf/sync_debug.c
index c0abf37..434a665 100644 (file)
--- a/drivers/dma-buf/sync_debug.c
+++ b/drivers/dma-buf/sync_debug.c
@@ -197,29 +197,3 @@ static __init int sync_debugfs_init(void)
        return 0;
 }
 late_initcall(sync_debugfs_init);
-
-#define DUMP_CHUNK 256
-static char sync_dump_buf[64 * 1024];
-void sync_dump(void)
-{
-       struct seq_file s = {
-               .buf = sync_dump_buf,
-               .size = sizeof(sync_dump_buf) - 1,
-       };
-       int i;
-
-       sync_info_debugfs_show(&s, NULL);
-
-       for (i = 0; i < s.count; i += DUMP_CHUNK) {
-               if ((s.count - i) > DUMP_CHUNK) {
-                       char c = s.buf[i + DUMP_CHUNK];
-
-                       s.buf[i + DUMP_CHUNK] = 0;
-                       pr_cont("%s", s.buf + i);
-                       s.buf[i + DUMP_CHUNK] = c;
-               } else {
-                       s.buf[s.count] = 0;
-                       pr_cont("%s", s.buf + i);
-               }
-       }
-}

diff --git a/drivers/dma-buf/sync_debug.h b/drivers/dma-buf/sync_debug.h
index 05e33f9..6176e52 100644 (file)
--- a/drivers/dma-buf/sync_debug.h
+++ b/drivers/dma-buf/sync_debug.h
@@ -68,6 +68,5 @@ void sync_timeline_debug_add(struct sync_timeline *obj);
 void sync_timeline_debug_remove(struct sync_timeline *obj);
 void sync_file_debug_add(struct sync_file *fence);
 void sync_file_debug_remove(struct sync_file *fence);
-void sync_dump(void);
 
 #endif /* _LINUX_SYNC_H */