lkml.org 
[lkml]   [2015]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] net: Initialize all members in skb_gro_remcsum_init()
Date
skb_gro_remcsum_init() initializes the gro_remcsum.delta member only,
leading to compiler warnings about a possibly uninitialized
gro_remcsum.offset member:

drivers/net/vxlan.c: In function ‘vxlan_gro_receive’:
drivers/net/vxlan.c:602: warning: ‘grc.offset’ may be used uninitialized in this function
net/ipv4/fou.c: In function ‘gue_gro_receive’:
net/ipv4/fou.c:262: warning: ‘grc.offset’ may be used uninitialized in this function

While these are harmless for now:
- skb_gro_remcsum_process() sets offset before changing delta,
- skb_gro_remcsum_cleanup() checks if delta is non-zero before
accessing offset,
it's safer to let the initialization function initialize all members.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
include/linux/netdevice.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 5897b4ea5a3f9e0f..429d1790a27e85f3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2342,6 +2342,7 @@ struct gro_remcsum {

static inline void skb_gro_remcsum_init(struct gro_remcsum *grc)
{
+ grc->offset = 0;
grc->delta = 0;
}

--
1.9.1


\
 
 \ /
  Last update: 2015-02-18 12:01    [W:0.043 / U:0.400 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site