linux-kernel - [PATCH v2] kbuild: use hostname -s along uname to obtain LINUX_COMPILE

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Message-Id: <20220401151706.30697-1-s23265@iisve.it>
Date:   Fri,  1 Apr 2022 17:17:06 +0200
From:   FraSharp <f.duca00@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     f.duca00@...il.com, FraSharp <s23265@...ve.it>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] kbuild: use hostname -s along uname to obtain LINUX_COMPILE_HOST

* On some systems (e.g. macOS, Debian, Fedora), using commands like 'uname -n' or
  'hostname' will print something similar to "hostname.domain"
  ("Francescos-Air.fritz.box" for example), which is very annoying.
  What works instead is 'hostname -s', which will only write hostname
  without the domain ("Francescos-Air" for example),
  but also keep 'uname -n', as some systems as Arch Linux does not have
  'hostname' as command.

* This commit is complementary to
  1e66d50ad3a1dbf0169b14d502be59a4b1213149
  ("kbuild: Use uname for LINUX_COMPILE_HOST detection")

Signed-off-by: Francesco Duca <s23265@...ve.it>
---
 scripts/mkcompile_h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index ca40a5258..3eefbafe5 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -34,7 +34,7 @@ else
 	LINUX_COMPILE_BY=$KBUILD_BUILD_USER
 fi
 if test -z "$KBUILD_BUILD_HOST"; then
-	LINUX_COMPILE_HOST=`uname -n`
+	LINUX_COMPILE_HOST=$(hostname -s 2>/dev/null || uname -n)
 else
 	LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
 fi
-- 
2.32.0 (Apple Git-132)