Patch "kconfig: tinyconfig: provide whole choice blocks to avoid warnings" has been added to the 4.7-stable tree

This is a note to let you know that I've just added the patch titled

kconfig: tinyconfig: provide whole choice blocks to avoid warnings

to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
kconfig-tinyconfig-provide-whole-choice-blocks-to-avoid-warnings.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Arnd Bergmann <[email protected]>
Date: Thu, 1 Sep 2016 16:14:47 -0700
Subject: kconfig: tinyconfig: provide whole choice blocks to avoid warnings

From: Arnd Bergmann <[email protected]>

commit 236dec051078a8691950f56949612b4b74107e48 upstream.

Using "make tinyconfig" produces a couple of annoying warnings that show up for build test machines all the time:

.config:966:warning: override: NOHIGHMEM changes choice state .config:965:warning: override: SLOB changes choice state .config:963:warning: override: KERNEL_XZ changes choice state .config:962:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state .config:933:warning: override: SLOB changes choice state .config:930:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state .config:870:warning: override: SLOB changes choice state .config:868:warning: override: KERNEL_XZ changes choice state .config:867:warning: override: CC_OPTIMIZE_FOR_SIZE changes choice state

I've made a previous attempt at fixing them and we discussed a number of alternatives.

I tried changing the Makefile to use "merge_config.sh -n $(fragment-list)" but couldn't get that to work properly.

This is yet another approach, based on the observation that we do want to see a warning for conflicting 'choice' options, and that we can simply make them non-conflicting by listing all other options as disabled. This is a trivial patch that we can apply independent of plans for other changes.

https://patchwork.kernel.org/patch/9212749/

---
 arch/x86/configs/tiny.config |    2 ++
 kernel/configs/tiny.config   |    8 ++++++++
 2 files changed, 10 insertions(+)

@@ -1 +1,3 @@
 CONFIG_NOHIGHMEM=y
+# CONFIG_HIGHMEM4G is not set
+# CONFIG_HIGHMEM64G is not set

@@ -1,4 +1,12 @@
+# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_KERNEL_GZIP is not set
+# CONFIG_KERNEL_BZIP2 is not set
+# CONFIG_KERNEL_LZMA is not set
 CONFIG_KERNEL_XZ=y
+# CONFIG_KERNEL_LZO is not set
+# CONFIG_KERNEL_LZ4 is not set
 CONFIG_OPTIMIZE_INLINING=y
+# CONFIG_SLAB is not set
+# CONFIG_SLUB is not set
 CONFIG_SLOB=y

Patches currently in stable-queue which might be from [email protected] are

queue-4.7/kconfig-tinyconfig-provide-whole-choice-blocks-to-avoid-warnings.patch