diff mbox series

[net-next,06/27] net: xen: set zc flags only when there is ubuf

Message ID 3b75e002109483819858dd303ca91981b33ee0d9.1648981571.git.asml.silence@gmail.com (mailing list archive)
State Deferred
Delegated to: Netdev Maintainers
Headers show
Series net and/or udp optimisations | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 2 maintainers not CCed: xen-devel@lists.xenproject.org pabeni@redhat.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 9 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Pavel Begunkov April 3, 2022, 1:06 p.m. UTC 
In preparation to changing zc ubuf invariants, set SKBFL_ZEROCOPY_ENABLE
IFF there is a ubuf set.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 drivers/net/xen-netback/interface.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index fe8e21ad8ed9..0a0c36a38fd4 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -55,7 +55,8 @@ 
 void xenvif_skb_zerocopy_prepare(struct xenvif_queue *queue,
 				 struct sk_buff *skb)
 {
-	skb_shinfo(skb)->flags |= SKBFL_ZEROCOPY_ENABLE;
+	if (skb_uarg(skb))
+		skb_shinfo(skb)->flags |= SKBFL_ZEROCOPY_ENABLE;
 	atomic_inc(&queue->inflight_packets);
 }