From: Richard Yao <ryao@gentoo.org>
Date: Fri, 21 Mar 2014 15:07:28 +0000 (-0400)
Subject: Revert "Properly ignore bdi_setup_and_register return value"
X-Git-Tag: zfs-0.6.3~68
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6b6b8d10418bc0679cecac7885a1e6d6ba4967a1;p=zfs

Revert "Properly ignore bdi_setup_and_register return value"

Older GCC versions do not obey -Wno-unused-result. This reverts commit
729210564a5325e190fc4fba22bf17bacf957ace in favor of a solution that
does not require -Wno-unused-result.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1906
---

diff --git a/config/kernel-bdi-setup-and-register.m4 b/config/kernel-bdi-setup-and-register.m4
index cb8ed67a1..4196091e9 100644
--- a/config/kernel-bdi-setup-and-register.m4
+++ b/config/kernel-bdi-setup-and-register.m4
@@ -1,14 +1,12 @@
 dnl #
 dnl # 2.6.34 API change
-dnl # The bdi_setup_and_register() helper function is available and
+dnl # The bdi_setup_and_register() helper function is avilable and
 dnl # exported by the kernel.  This is a trivial helper function but
 dnl # using it significantly simplifies the code surrounding setting
 dnl # up and tearing down the bdi structure.
 dnl #
 AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER],
 	[AC_MSG_CHECKING([whether bdi_setup_and_register() is available])
-	tmp_flags="$EXTRA_KCFLAGS"
-	EXTRA_KCFLAGS="-Wno-unused-result"
 	ZFS_LINUX_TRY_COMPILE_SYMBOL([
 		#include <linux/backing-dev.h>
 	], [
@@ -20,5 +18,4 @@ AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER],
 	], [
 		AC_MSG_RESULT(no)
 	])
-	EXTRA_KCFLAGS="$tmp_flags"
 ])