On Fri, 5 Jul 2019 13:14:35 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> > I checked next-20190704 tag.
> >
> > I see the empty file
> > drivers/gpu/drm/i915/oa/Makefile
> >
> > Did someone delete it?
>
> Commit
>
> 5ed7a0cf3394 ("drm/i915: Move OA files to separate folder")
>
> from the drm-intel tree seems to have created it as an empty file.
hrm.
diff(1) doesn't seem to know how to handle a zero-length file.
y:/home/akpm> mkdir foo
y:/home/akpm> cd foo
y:/home/akpm/foo> touch x
y:/home/akpm/foo> diff -uN x y
y:/home/akpm/foo> date > x
y:/home/akpm/foo> diff -uN x y
--- x 2019-07-04 21:58:37.815028211 -0700
+++ y 1969-12-31 16:00:00.000000000 -0800
@@ -1 +0,0 @@
-Thu Jul 4 21:58:37 PDT 2019
So when comparing a zero-length file with a non-existent file, diff
produces no output.
This'll make things happy. And I guess it should be done to protect
all the valuable intellectual property in that file.
--- /dev/null
+++ a/drivers/gpu/drm/i915/oa/Makefile
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0
_
