From: Thomas Weißschuh <linux@weissschuh.net>
Date: Thu, 21 Aug 2025 15:40:34 +0000 (+0200)
Subject: tools/nolibc: remove __nolibc_enosys() fallback from dup2()
X-Git-Tag: v6.18-rc1~173^2~8
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=09adec1f4b446e8788c70022fae41356ee916260;p=thirdparty%2Flinux.git

tools/nolibc: remove __nolibc_enosys() fallback from dup2()

All architectures have one of the real functions available.
The additional fallback to __nolibc_enosys() is superfluous.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250821-nolibc-enosys-v1-3-4b63f2caaa89@weissschuh.net
---

diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 12030c8031737..32cc741f2f7d7 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -248,10 +248,8 @@ int sys_dup2(int old, int new)
 	}
 
 	return my_syscall3(__NR_dup3, old, new, 0);
-#elif defined(__NR_dup2)
-	return my_syscall2(__NR_dup2, old, new);
 #else
-	return __nolibc_enosys(__func__, old, new);
+	return my_syscall2(__NR_dup2, old, new);
 #endif
 }