From: Thomas Weißschuh <linux@weissschuh.net>
Date: Fri, 27 Feb 2026 06:38:06 +0000 (+0100)
Subject: kbuild: uapi: simplify libc dependency logic
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=510c7a57362d4620f66cf8a083363b8e20bd9778;p=thirdparty%2Fkernel%2Fstable.git

kbuild: uapi: simplify libc dependency logic

The only left user of the condition inverts it.

Invert the condition completely and simplify its user.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Tested-by: Nicolas Schier <nsc@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260227-kbuild-uapi-libc-v1-8-c17de0d19776@weissschuh.net
Signed-off-by: Nicolas Schier <nsc@kernel.org>
---

diff --git a/usr/include/Makefile b/usr/include/Makefile
index d352280b0e4a..845d06b63c2b 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -137,14 +137,14 @@ endif
 
 always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
 
-target-no-libc = $(filter-out $(uses-libc), $*.h)
+target-libc = $(filter $(uses-libc), $*.h)
 target-can-compile = $(filter-out $(no-header-test), $*.h)
 
 # Include the header twice to detect missing include guard.
 quiet_cmd_hdrtest = HDRTEST $<
       cmd_hdrtest = \
 		$(CC) $(c_flags) -fsyntax-only -Werror -x c /dev/null \
-			-nostdinc $(if $(target-no-libc), , -I $(srctree)/usr/dummy-include) \
+			-nostdinc $(if $(target-libc), -I $(srctree)/usr/dummy-include) \
 			$(if $(target-can-compile), -include $< -include $<); \
 		$(PERL) $(src)/headers_check.pl $(obj) $<; \
 		touch $@