[OE-core] [PATCH 1/1] meta/classes/kernel.bbclass: revert 56fe5300ab5

[Trevor Woerner]

This commit effectively reverts 56fe5300ab5 (except doing a revert at this
point is not clean).

The Linux kernel contains a configuration option called
CONFIG_LOCALVERSION_AUTO which, if enabled, will change the boot
log and "uname -a" from, for example, "4.10.2-yocto-standard" to
"4.10.2-yocto-standard-00368-g827a1164b155".

According to the log message for 56fe5300ab5, the Linux kernel's
scripts/setlocalversion script was leaving or appending a '+' to the end of
directory names (e.g. /lib/modules/2.6.37+). This conversation can be seen at:

	http://lists.openembedded.org/pipermail/openembedded-core/2011-December/053263.html

The solution was to touch an empty .scmversion file, which causes the kernel's
CONFIG_LOCALVERSION_AUTO logic to be entirely circumvented. This seems like
a very big hammer to use in order to fix a trailing '+'. If users were
enabling this kernel option, it wasn't having any effect. Also, by default,
CONFIG_LOCALVERSION_AUTO is disabled in linux-yocto kernels.

Commit 56fe5300ab5 was many years ago, and my current testing with
CONFIG_LOCALVERSION_AUTO enabled and 56fe5300ab5 reverted doesn't appear to
cause trailing '+' characters to be appended to filenames in /lib/modules
anymore. It appears as though the problem has been fixed somewhere else along
the way. In which case, enable this functionality so setting this kernel
option gives users the expected result.

Signed-off-by: Trevor Woerner <twoerner at gmail.com>
---
 meta/classes/kernel.bbclass | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 1e0646a437..c44978808b 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -451,12 +451,6 @@ check_oldest_kernel[vardepsexclude] += "OLDEST_KERNEL KERNEL_VERSION"
 do_configure[prefuncs] += "check_oldest_kernel"
 
 kernel_do_configure() {
-	# fixes extra + in /lib/modules/2.6.37+
-	# $ scripts/setlocalversion . => +
-	# $ make kernelversion => 2.6.37
-	# $ make kernelrelease => 2.6.37+
-	touch ${B}/.scmversion ${S}/.scmversion
-
 	if [ "${S}" != "${B}" ] && [ -f "${S}/.config" ] && [ ! -f "${B}/.config" ]; then
 		mv "${S}/.config" "${B}/.config"
 	fi
-- 
2.12.0.rc1.48.g076c053