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Subject[PATCH] kbuild: optimize the increments the version number rules
Date
Currently, the build version of the kernel can only count integers.
If the user defines that the version in .version is a non-integer
number, the build version will be '1'.

The original intention of the version rule as I understand it is to
initialize the version to '1' when the user does not define a build
version.

In order to allow users to define a non-integer kernel version, and
it will not be automatically changed to '1' after definition, this
modification is submitted

Fixes: 2df8220cc511 ("kbuild: build init/built-in.a just once")

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
---
init/build-version | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/init/build-version b/init/build-version
index 537d45815083..ca985dc285cc 100755
--- a/init/build-version
+++ b/init/build-version
@@ -3,7 +3,12 @@

prev_ver=$(cat .version 2>/dev/null) &&
ver=$(expr ${prev_ver} + 1 2>/dev/null) ||
-ver=1
+if [ X$prev_ver = "X" ]
+then
+ ver=1
+else
+ ver=$prev_ver
+fi

echo ${ver} > .version

--
2.20.1
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