[PATCH] lttng-tools: Update 2.7.1 -> 2.8.1

[Richard Purdie <richard.purdie@linuxfoundation.org>]

Drop backported patch.
Update ust configure option.
Update location of xml m4 file.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-kernel/lttng/lttng-tools/stop-using-SIGUNUSED.patch b/meta/recipes-kernel/lttng/lttng-tools/stop-using-SIGUNUSED.patch
deleted file mode 100644
index bd4f7d1..0000000
--- a/meta/recipes-kernel/lttng/lttng-tools/stop-using-SIGUNUSED.patch
+++ /dev/null
@@ -1,51 +0,0 @@
-From 1f54181c2df1fb92c3323a6dbf8273fb66b883b6 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?J=C3=A9r=C3=A9mie=20Galarneau?=
- <jeremie.galarneau@efficios.com>
-Date: Sat, 17 Oct 2015 19:41:47 -0400
-Subject: [PATCH] Port: Don't use SIGUNUSED which is not defined on Solaris
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-Organization: O.S. Systems Software LTDA.
-
-Upstream-Status: Backport [2.8.0]
-
-Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
----
- src/common/runas.c | 18 +++++-------------
- 1 file changed, 5 insertions(+), 13 deletions(-)
-
-diff --git a/src/common/runas.c b/src/common/runas.c
-index 57f7382..0825470 100644
---- a/src/common/runas.c
-+++ b/src/common/runas.c
-@@ -530,21 +530,13 @@ int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid)
- static
- int reset_sighandler(void)
- {
--	int sig, ret = 0;
-+	int sig;
- 
--	for (sig = SIGHUP; sig <= SIGUNUSED; sig++) {
--		/* Skip unblockable signals. */
--		if (sig == SIGKILL || sig == SIGSTOP) {
--			continue;
--		}
--		if (signal(sig, SIG_DFL) == SIG_ERR) {
--			PERROR("reset signal %d", sig);
--			ret = -1;
--			goto end;
--		}
-+	DBG("Resetting run_as worker signal handlers to default");
-+	for (sig = 1; sig <= 31; sig++) {
-+		(void) signal(sig, SIG_DFL);
- 	}
--end:
--	return ret;
-+	return 0;
- }
- 
- static
--- 
-2.6.2
-
diff --git a/meta/recipes-kernel/lttng/lttng-tools_git.bb b/meta/recipes-kernel/lttng/lttng-tools_git.bb
index fe1e2a3..e2f3032 100644
--- a/meta/recipes-kernel/lttng/lttng-tools_git.bb
+++ b/meta/recipes-kernel/lttng/lttng-tools_git.bb
@@ -13,8 +13,8 @@ DEPENDS = "liburcu popt libxml2"
 RDEPENDS_${PN} = "libgcc"
 RDEPENDS_${PN}-ptest += "make perl bash"
 
-SRCREV = "a90f2c1e10b759782653a81815625e9d1bbb75ca"
-PV = "2.7.1+git${SRCPV}"
+SRCREV = "d11e0dba0df9024b8613c51e167a379b91e8b20b"
+PV = "2.8.1+git${SRCPV}"
 
 PYTHON_OPTION = "am_cv_python_pyexecdir='${PYTHON_SITEPACKAGES_DIR}' \
                  am_cv_python_pythondir='${PYTHON_SITEPACKAGES_DIR}' \
@@ -22,12 +22,11 @@ PYTHON_OPTION = "am_cv_python_pyexecdir='${PYTHON_SITEPACKAGES_DIR}' \
 "
 PACKAGECONFIG ??= "lttng-ust"
 PACKAGECONFIG[python] = "--enable-python-bindings ${PYTHON_OPTION},,python3 swig-native"
-PACKAGECONFIG[lttng-ust] = "--enable-lttng-ust, --disable-lttng-ust, lttng-ust"
+PACKAGECONFIG[lttng-ust] = "--with-lttng-ust, --without-lttng-ust, lttng-ust"
 PACKAGECONFIG[kmod] = "--enable-kmod, --disable-kmod, kmod"
 PACKAGECONFIG_remove_libc-musl = "lttng-ust"
 
-SRC_URI = "git://git.lttng.org/lttng-tools.git;branch=stable-2.7 \
-           file://stop-using-SIGUNUSED.patch \
+SRC_URI = "git://git.lttng.org/lttng-tools.git;branch=stable-2.8 \
            file://runtest-2.4.0.patch \
            file://run-ptest"
 
@@ -51,7 +50,7 @@ INSANE_SKIP_${PN}-dbg = "libexec"
 
 do_configure_prepend () {
 	# Delete a shipped m4 file that overrides our patched one
-	rm -f ${S}/config/libxml.m4
+	rm -f ${S}/m4/libxml.m4
 }
 
 do_install_ptest () {