netdev - [RESEND PATCH] dsa: dsa2: fix compile error for !CONFIG

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Date:   Thu, 23 Nov 2017 20:00:51 +0100
From:   Arend van Spriel <arend.vanspriel@...adcom.com>
To:     netdev <netdev@...r.kernel.org>
Cc:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: [RESEND PATCH] dsa: dsa2: fix compile error for !CONFIG_OF




-------- Forwarded Message --------
Subject: [PATCH] dsa: dsa2: fix compile error for !CONFIG_OF
Date: Thu, 23 Nov 2017 13:00:51 +0100
From: Arend van Spriel <arend.vanspriel@...adcom.com>
To: netdev@...r.kernel.org
CC: Vivien Didelot <vivien.didelot@...oirfairelinux.com>

Compilation fails building on x86_64 platform which does not
have CONFIG_OF enabled.

Signed-off-by: Arend van Spriel <arend.vanspriel@...adcom.com>
---
resending as my netdev subscription went wrong.

After rebasing my branch to v4.14 I attempted to build the kernel and 
hit the following compile issue:

net/dsa/dsa2.c: In function 'dsa_switch_parse_member_of':
net/dsa/dsa2.c:678:2: error: implicit declaration of function 
'of_property_read_variable_u32_array' 
[-Werror=implicit-function-declaration]
    sz = of_property_read_variable_u32_array(dn, "dsa,member", m, 2, 2);
    ^
cc1: some warnings being treated as errors
make[4]: *** [net/dsa/dsa2.o] Error 1

Basically I do not have CONFIG_OF set and the function above is not 
stubbed for !CONFIG_OF. Attached is my v4.14 config.

This patch fixes things, but maybe it is a bit too pragmatic.

Regards,
Arend
---
   net/dsa/dsa2.c | 7 +++++++
   1 file changed, 7 insertions(+)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 283104e..5e15fc2 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -612,6 +612,7 @@ static int dsa_dst_parse(struct dsa_switch_tree *dst)
   	return 0;
   }

+#ifdef CONFIG_OF
   static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
   {
   	struct device_node *ethernet = of_parse_phandle(dn, "ethernet", 0);
@@ -700,6 +701,12 @@ static int dsa_switch_parse_of(struct dsa_switch 
*ds, struct device_node *dn)

   	return dsa_switch_parse_ports_of(ds, dn);
   }
+#else
+static int dsa_switch_parse_of(struct dsa_switch *ds, struct 
device_node *dn)
+{
+	return 0;
+}
+#endif /* CONFIG_OF */

   static int dsa_port_parse(struct dsa_port *dp, const char *name,
   			  struct device *dev)


View attachment "config-4.14" of type "text/plain" (125818 bytes)