dir-locals.el: Don't set variables for non-programming modes

This limits the style changes to modes inherited from prog-mode. The
main reason to do this is to avoid setting fill-column for people
using Emacs to edit commit messages because 78 characters is too many
to make it wrap properly in git log. Note that makefile-mode also
inherits from prog-mode so the fill column should continue to apply
there.

v2: Apply to all the .dir-locals.el files, not just the one in the
    root directory.

Acked-by: Michel Dänzer <michel.daenzer@amd.com>

9 files changed, 9 insertions, 9 deletions

diff --git a/.dir-locals.el b/.dir-locals.el
index 04a1a2ce648..d95eb4803f6 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . nil)
   (tab-width . 8)
   (c-basic-offset . 3)
diff --git a/src/gallium/drivers/freedreno/.dir-locals.el b/src/gallium/drivers/freedreno/.dir-locals.el
index c26578bbf4b..aa20d495465 100644
--- a/src/gallium/drivers/freedreno/.dir-locals.el
+++ b/src/gallium/drivers/freedreno/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . true)
   (tab-width . 4)
   (c-basic-offset . 4)
diff --git a/src/gallium/drivers/r600/.dir-locals.el b/src/gallium/drivers/r600/.dir-locals.el
index 8be6a30ac67..4e35c129e70 100644
--- a/src/gallium/drivers/r600/.dir-locals.el
+++ b/src/gallium/drivers/r600/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . true)
   (tab-width . 8)
   (c-basic-offset . 8)
diff --git a/src/gallium/drivers/radeon/.dir-locals.el b/src/gallium/drivers/radeon/.dir-locals.el
index 8be6a30ac67..4e35c129e70 100644
--- a/src/gallium/drivers/radeon/.dir-locals.el
+++ b/src/gallium/drivers/radeon/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . true)
   (tab-width . 8)
   (c-basic-offset . 8)
diff --git a/src/gallium/drivers/radeonsi/.dir-locals.el b/src/gallium/drivers/radeonsi/.dir-locals.el
index 8be6a30ac67..4e35c129e70 100644
--- a/src/gallium/drivers/radeonsi/.dir-locals.el
+++ b/src/gallium/drivers/radeonsi/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . true)
   (tab-width . 8)
   (c-basic-offset . 8)
diff --git a/src/gallium/drivers/vc4/.dir-locals.el b/src/gallium/drivers/vc4/.dir-locals.el
index ed10dc2d7fe..ac94242d70f 100644
--- a/src/gallium/drivers/vc4/.dir-locals.el
+++ b/src/gallium/drivers/vc4/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . nil)
   (tab-width . 8)
   (c-basic-offset . 8)
diff --git a/src/gallium/drivers/vc4/kernel/.dir-locals.el b/src/gallium/drivers/vc4/kernel/.dir-locals.el
index 2e58e90f311..49403de2468 100644
--- a/src/gallium/drivers/vc4/kernel/.dir-locals.el
+++ b/src/gallium/drivers/vc4/kernel/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . t)
   (tab-width . 8)
   (c-basic-offset . 8)
diff --git a/src/gallium/winsys/radeon/.dir-locals.el b/src/gallium/winsys/radeon/.dir-locals.el
index 0e937bba36b..d5f0f043326 100644
--- a/src/gallium/winsys/radeon/.dir-locals.el
+++ b/src/gallium/winsys/radeon/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . nil)
   (tab-width . 8)
   (c-basic-offset . 4)
diff --git a/src/mesa/drivers/dri/nouveau/.dir-locals.el b/src/mesa/drivers/dri/nouveau/.dir-locals.el
index 29735e8f24a..774f023ae6f 100644
--- a/src/mesa/drivers/dri/nouveau/.dir-locals.el
+++ b/src/mesa/drivers/dri/nouveau/.dir-locals.el
@@ -1,4 +1,4 @@
-((nil
+((prog-mode
   (indent-tabs-mode . true)
   (tab-width . 8)
   (c-basic-offset . 8)