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authorChristoph Hellwig <hch@lst.de>2020-06-29 15:03:57 +0200
committerDaniel Borkmann <daniel@iogearbox.net>2020-06-30 15:44:03 +0200
commit91d5b70273267bbae6f5d1fb4cf3510bd31ef9ff (patch)
tree9996f407555352be8720dc5773552e813f509a19 /include
parentdma-mapping: Add a new dma_need_sync API (diff)
downloadwireguard-linux-91d5b70273267bbae6f5d1fb4cf3510bd31ef9ff.tar.xz
wireguard-linux-91d5b70273267bbae6f5d1fb4cf3510bd31ef9ff.zip
xsk: Replace the cheap_dma flag with a dma_need_sync flag
Invert the polarity and better name the flag so that the use case is properly documented. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200629130359.2690853-3-hch@lst.de
Diffstat (limited to 'include')
-rw-r--r--include/net/xsk_buff_pool.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
index a4ff226505c9..6842990e2712 100644
--- a/include/net/xsk_buff_pool.h
+++ b/include/net/xsk_buff_pool.h
@@ -40,7 +40,7 @@ struct xsk_buff_pool {
u32 headroom;
u32 chunk_size;
u32 frame_len;
- bool cheap_dma;
+ bool dma_need_sync;
bool unaligned;
void *addrs;
struct device *dev;
@@ -80,7 +80,7 @@ static inline dma_addr_t xp_get_frame_dma(struct xdp_buff_xsk *xskb)
void xp_dma_sync_for_cpu_slow(struct xdp_buff_xsk *xskb);
static inline void xp_dma_sync_for_cpu(struct xdp_buff_xsk *xskb)
{
- if (xskb->pool->cheap_dma)
+ if (!xskb->pool->dma_need_sync)
return;
xp_dma_sync_for_cpu_slow(xskb);
@@ -91,7 +91,7 @@ void xp_dma_sync_for_device_slow(struct xsk_buff_pool *pool, dma_addr_t dma,
static inline void xp_dma_sync_for_device(struct xsk_buff_pool *pool,
dma_addr_t dma, size_t size)
{
- if (pool->cheap_dma)
+ if (!pool->dma_need_sync)
return;
xp_dma_sync_for_device_slow(pool, dma, size);