From: Roy Marples <roy@marples.name>
Date: Wed, 26 Jun 2024 11:30:42 +0000 (+0100)
Subject: privsep: Sweep ELE_ERROR away for BPF
X-Git-Tag: v10.0.9~15
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=ea10a3d887ea7d3c631b45f708c030e7f92891fd;p=thirdparty%2Fdhcpcd.git

privsep: Sweep ELE_ERROR away for BPF

It's just noise and we'll handle NETDOWN in the loop.
We sometimes see it on Linux when a wireless interface "roams"
in fake testing.
---

diff --git a/src/privsep-bpf.c b/src/privsep-bpf.c
index 74286535..032e6d1a 100644
--- a/src/privsep-bpf.c
+++ b/src/privsep-bpf.c
@@ -67,7 +67,7 @@ ps_bpf_recvbpf(void *arg, unsigned short events)
 		.ps_cmd = psp->psp_id.psi_cmd,
 	};
 
-	if (events != ELE_READ)
+	if (!(events & (ELE_READ | ELE_ERROR)))
 		logerrx("%s: unexpected event 0x%04x", __func__, events);
 
 	bpf->bpf_flags &= ~BPF_EOF;