[DIM DOCS PATCH 2/2] doc: clarify what type of changes are acceptable at commit time

[Jani Nikula]

As a rule of thumb, don't change patches while committing.

Cc: Imre Deak <imre.deak at intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drm-intel.rst | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drm-intel.rst b/drm-intel.rst
index baf48f459dd9..ad8ff9739336 100644
--- a/drm-intel.rst
+++ b/drm-intel.rst
@@ -196,6 +196,13 @@ An inexhaustive list of details to check:
   coordinate with maintainers to avoid unnecessary pain with conflicts. Usually
   some explicit merges are needed to avoid git getting lost.
 
+* As a general rule, do not modify the patches while applying, apart from the
+  commit message. If the patch conflicts, or needs to be changed due to review,
+  have the author rebase, update and resend. Any change at this stage is a
+  potential issue bypassing CI.
+
+  At most, minor comment and whitespace tweaks are acceptable.
+
 On Confidence, Complexity, and Transparency
 -------------------------------------------
 
-- 
2.11.0