commit 71e2443e4ca1540db63c0bbf58ae78944c97e993
author Josh Kunz <jkz@google.com> Mon Jul 06 17:10:36 2020 -0700
committer Laurent Vivier <laurent@vivier.eu> Mon Jul 13 20:47:57 2020 +0200
tree d9690be539ed71c20543b08fc9dae0b9c801c7dd
parent 5c65b1f135ff09d24827fa3a17e56a4f8a032cd5

linux-user: Use EPROTONOSUPPORT for unimplemented netlink protocols

Linux uses the EPROTONOSUPPORT error code[1] if the users requests a
netlink socket with an unsupported netlink protocol. This change
switches linux-user to use the same code as Linux, instead of
EPFNOSUPPORT (which AFAIK is just an anachronistic version of
EAFNOSUPPORT).

Tested by compiling all linux-user targets on x86.

[1]:
https://github.com/torvalds/linux/blob/bfe91da29bfad9941d5d703d45e29f0812a20724/net/netlink/af_netlink.c#L683

Signed-off-by: Josh Kunz <jkz@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200707001036.1671982-1-jkz@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/syscall.c

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 98ea86c..e9f5334 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2990,7 +2990,7 @@
 #endif
          protocol == NETLINK_KOBJECT_UEVENT ||
          protocol == NETLINK_AUDIT)) {
-        return -TARGET_EPFNOSUPPORT;
+        return -TARGET_EPROTONOSUPPORT;
     }
 
     if (domain == AF_PACKET ||