From: Peter Michael Green <plugwash@raspbian.org>
Date: Thu, 7 Jan 2021 03:30:15 +0000 (+0000)
Subject: Disable use of dmb on arm, it's not approprpriate for raspbian.
X-Git-Tag: archive/raspbian/0.3-2+rpi1~2
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=7bc52ccaaee6be5a67f33f6cfadbafb3eafeec61;p=libbpf.git

Disable use of dmb on arm, it's not approprpriate for raspbian.


Gbp-Pq: Name dont-use-dmb.patch
---

diff --git a/src/libbpf_util.h b/src/libbpf_util.h
index 59c779c..b31e252 100644
--- a/src/libbpf_util.h
+++ b/src/libbpf_util.h
@@ -26,7 +26,7 @@ extern "C" {
 # define libbpf_smp_wmb() asm volatile("dmb ishst" : : : "memory")
 # define libbpf_smp_mb() asm volatile("dmb ish" : : : "memory")
 # define libbpf_smp_rwmb() libbpf_smp_mb()
-#elif defined(__arm__)
+#elif 0
 /* These are only valid for armv7 and above */
 # define libbpf_smp_rmb() asm volatile("dmb ish" : : : "memory")
 # define libbpf_smp_wmb() asm volatile("dmb ishst" : : : "memory")