From: Juergen Gross Date: Wed, 8 Jun 2022 04:37:26 +0000 (+0200) Subject: xen/netback: do some code cleanup X-Git-Tag: v5.15.92~1585 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4422241ceffcf7d092117ee17a6c562e6b2818b5;p=platform%2Fkernel%2Flinux-rpi.git xen/netback: do some code cleanup [ Upstream commit 5834e72eda0b7e5767eb107259d98eef19ebd11f ] Remove some unused macros and functions, make local functions static. Signed-off-by: Juergen Gross Acked-by: Wei Liu Link: https://lore.kernel.org/r/20220608043726.9380-1-jgross@suse.com Signed-off-by: Jakub Kicinski Stable-dep-of: 74e7e1efdad4 ("xen/netback: don't call kfree_skb() with interrupts disabled") Signed-off-by: Sasha Levin --- diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index d9dea48..8174d7b 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -48,7 +48,6 @@ #include typedef unsigned int pending_ring_idx_t; -#define INVALID_PENDING_RING_IDX (~0U) struct pending_tx_info { struct xen_netif_tx_request req; /* tx request */ @@ -82,8 +81,6 @@ struct xenvif_rx_meta { /* Discriminate from any valid pending_idx value. */ #define INVALID_PENDING_IDX 0xFFFF -#define MAX_BUFFER_OFFSET XEN_PAGE_SIZE - #define MAX_PENDING_REQS XEN_NETIF_TX_RING_SIZE /* The maximum number of frags is derived from the size of a grant (same @@ -367,11 +364,6 @@ void xenvif_free(struct xenvif *vif); int xenvif_xenbus_init(void); void xenvif_xenbus_fini(void); -int xenvif_schedulable(struct xenvif *vif); - -int xenvif_queue_stopped(struct xenvif_queue *queue); -void xenvif_wake_queue(struct xenvif_queue *queue); - /* (Un)Map communication rings. */ void xenvif_unmap_frontend_data_rings(struct xenvif_queue *queue); int xenvif_map_frontend_data_rings(struct xenvif_queue *queue, @@ -394,7 +386,6 @@ int xenvif_dealloc_kthread(void *data); irqreturn_t xenvif_ctrl_irq_fn(int irq, void *data); bool xenvif_have_rx_work(struct xenvif_queue *queue, bool test_kthread); -void xenvif_rx_action(struct xenvif_queue *queue); void xenvif_rx_queue_tail(struct xenvif_queue *queue, struct sk_buff *skb); void xenvif_carrier_on(struct xenvif *vif); @@ -403,9 +394,6 @@ void xenvif_carrier_on(struct xenvif *vif); void xenvif_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *ubuf, bool zerocopy_success); -/* Unmap a pending page and release it back to the guest */ -void xenvif_idx_unmap(struct xenvif_queue *queue, u16 pending_idx); - static inline pending_ring_idx_t nr_pending_reqs(struct xenvif_queue *queue) { return MAX_PENDING_REQS - diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index c58996c..e319368 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -70,7 +70,7 @@ void xenvif_skb_zerocopy_complete(struct xenvif_queue *queue) wake_up(&queue->dealloc_wq); } -int xenvif_schedulable(struct xenvif *vif) +static int xenvif_schedulable(struct xenvif *vif) { return netif_running(vif->dev) && test_bit(VIF_STATUS_CONNECTED, &vif->status) && @@ -178,20 +178,6 @@ irqreturn_t xenvif_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -int xenvif_queue_stopped(struct xenvif_queue *queue) -{ - struct net_device *dev = queue->vif->dev; - unsigned int id = queue->id; - return netif_tx_queue_stopped(netdev_get_tx_queue(dev, id)); -} - -void xenvif_wake_queue(struct xenvif_queue *queue) -{ - struct net_device *dev = queue->vif->dev; - unsigned int id = queue->id; - netif_tx_wake_queue(netdev_get_tx_queue(dev, id)); -} - static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb, struct net_device *sb_dev) { diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index a5c2677..6bd7b62 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -112,6 +112,8 @@ static void make_tx_response(struct xenvif_queue *queue, s8 st); static void push_tx_responses(struct xenvif_queue *queue); +static void xenvif_idx_unmap(struct xenvif_queue *queue, u16 pending_idx); + static inline int tx_work_todo(struct xenvif_queue *queue); static inline unsigned long idx_to_pfn(struct xenvif_queue *queue, @@ -1441,7 +1443,7 @@ static void push_tx_responses(struct xenvif_queue *queue) notify_remote_via_irq(queue->tx_irq); } -void xenvif_idx_unmap(struct xenvif_queue *queue, u16 pending_idx) +static void xenvif_idx_unmap(struct xenvif_queue *queue, u16 pending_idx) { int ret; struct gnttab_unmap_grant_ref tx_unmap_op; diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c index a033540..93276217 100644 --- a/drivers/net/xen-netback/rx.c +++ b/drivers/net/xen-netback/rx.c @@ -486,7 +486,7 @@ static void xenvif_rx_skb(struct xenvif_queue *queue) #define RX_BATCH_SIZE 64 -void xenvif_rx_action(struct xenvif_queue *queue) +static void xenvif_rx_action(struct xenvif_queue *queue) { struct sk_buff_head completed_skbs; unsigned int work_done = 0;