Messages in this thread | | | Date | Thu, 23 Apr 2009 00:24:03 -0700 (PDT) | Subject | Re: linux-next: upstream tree build warnings | From | David Miller <> |
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From: Stephen Rothwell <sfr@canb.auug.org.au> Date: Thu, 23 Apr 2009 16:38:47 +1000
> Today's linux-next build (powerpc allyesconfig gcc4.4.0) produced these > warnings: > > drivers/net/virtio_net.c: In function 'virnet_vlan_rx_add_vid': > include/linux/scatterlist.h:57: warning: 'sg' is used uninitialized in this function > drivers/net/virtio_net.c:746: note: 'sg' was declared here > drivers/net/virtio_net.c: In function 'virnet_vlan_rx_kill_vid': > include/linux/scatterlist.h:57: warning: 'sg' is used uninitialized in this function > drivers/net/virtio_net.c:758: note: 'sg' was declared here > > in each case, sg is uninitialised when its address is passed to > sg_set_buf() which passes it to gs_set_page() which passes it to > sg_assign_page() which dereferences it (to use ->page_link).
I wonder if this is a side effect of changes that went in via Rusty's tree? I don't remember touching this driver in a while.
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