diff --git a/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4/0002-perf_examples-Remove-unused-sum-variable.patch b/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4/0002-perf_examples-Remove-unused-sum-variable.patch
new file mode 100644
index 0000000..e85ca96
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4/0002-perf_examples-Remove-unused-sum-variable.patch
@@ -0,0 +1,44 @@
+From 0b2f611a95f3c93454453892bbe021ad2815925d Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 15 Jun 2021 17:35:26 -0700
+Subject: [PATCH] perf_examples: Remove unused 'sum' variable
+
+Fixes
+self_smpl_multi.c:144:19: error: variable 'sum' set but not used [-Werror,-Wunused-but-set-variable]
+        unsigned long x, sum;
+                         ^
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ perf_examples/self_smpl_multi.c | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+diff --git a/perf_examples/self_smpl_multi.c b/perf_examples/self_smpl_multi.c
+index 391fa61..75b45e0 100644
+--- a/perf_examples/self_smpl_multi.c
++++ b/perf_examples/self_smpl_multi.c
+@@ -141,7 +141,7 @@ void
+ do_cycles(void)
+ {
+ 	struct timeval start, last, now;
+-	unsigned long x, sum;
++	unsigned long x;
+ 
+ 	gettimeofday(&start, NULL);
+ 	last = start;
+@@ -150,15 +150,12 @@ do_cycles(void)
+ 	iter[myid] = 0;
+ 
+ 	do {
+-
+-		sum = 1;
+ 		for (x = 1; x < 250000; x++) {
+ 			/* signal pending to private queue because of
+ 			 * pthread_kill(), i.e., tkill()
+ 			 */
+ 			if ((x % 5000) == 0)
+ 				pthread_kill(pthread_self(), SIGUSR1);
+-			sum += x;
+ 		}
+ 		iter[myid]++;
+ 
diff --git a/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4_4.10.1.bb b/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4_4.11.0.bb
similarity index 81%
rename from meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4_4.10.1.bb
rename to meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4_4.11.0.bb
index ff56d48..8ffc99f 100644
--- a/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4_4.10.1.bb
+++ b/meta-openembedded/meta-oe/recipes-kernel/libpfm/libpfm4_4.11.0.bb
@@ -10,13 +10,13 @@
 
 SECTION = "devel"
 
-COMPATIBLE_HOST = "powerpc64"
+COMPATIBLE_HOST = "powerpc64|aarch64"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/perfmon2/${BPN}/libpfm-${PV}.tar.gz \
            file://0001-Include-poll.h-instead-of-sys-poll.h.patch \
-          "
-SRC_URI[md5sum] = "d8f66cb9bfa7e1434434e0de6409db5b"
-SRC_URI[sha256sum] = "c61c575378b5c17ccfc5806761e4038828610de76e2e34fac9f7fa73ba844b49"
+           file://0002-perf_examples-Remove-unused-sum-variable.patch \
+           "
+SRC_URI[sha256sum] = "5da5f8872bde14b3634c9688d980f68bda28b510268723cc12973eedbab9fecc"
 
 UPSTREAM_CHECK_URI = "http://sourceforge.net/projects/perfmon2/files/libpfm4/"
 
@@ -24,6 +24,7 @@
 EXTRA_OEMAKE_append_powerpc = " ARCH=\"powerpc\""
 EXTRA_OEMAKE_append_powerpc64 = " ARCH=\"powerpc\" BITMODE=\"64\""
 EXTRA_OEMAKE_append_powerpc64le = " ARCH=\"powerpc\" BITMODE=\"64\""
+EXTRA_OEMAKE_append_aarch64 = " ARCH=\"arm64\""
 
 S = "${WORKDIR}/libpfm-${PV}"
 
diff --git a/meta-openembedded/meta-oe/recipes-kernel/spidev-test/spidev-test.bb b/meta-openembedded/meta-oe/recipes-kernel/spidev-test/spidev-test.bb
index 6626302..974cb1e 100644
--- a/meta-openembedded/meta-oe/recipes-kernel/spidev-test/spidev-test.bb
+++ b/meta-openembedded/meta-oe/recipes-kernel/spidev-test/spidev-test.bb
@@ -1,7 +1,7 @@
 SUMMARY = "Test SPI devices"
 DESCRIPTION = "SPI testing utility using the spidev driver"
 LICENSE = "GPLv2"
-LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0-only;md5=801f80980d171dd6425610833a22dbe6"
 PROVIDES = "virtual/spidev-test"
 
 inherit bash-completion kernelsrc kernel-arch