[PATCH net-next v3 05/15] net: macb: enforce reverse christmas tree (RCT) convention
From: Théo Lebrun <theo.lebrun@bootlin.com>
Date: 2026-07-01 15:59:26
Also in:
lkml
Subsystem:
atmel macb ethernet driver, networking drivers, the rest · Maintainers:
Théo Lebrun, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Enforce the reverse christmas tree convention in those functions: macb_tx_error_task() gem_rx_refill() gem_rx() macb_rx_frame() macb_init_rx_ring() macb_rx() macb_rx_pending() macb_start_xmit() The goal is to minimise unrelated diff in future patches. In macb_tx_error_task(), we fold the assignment into the declaration statement. Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> --- drivers/net/ethernet/cadence/macb_main.c | 61 ++++++++++++++++---------------- 1 file changed, 30 insertions(+), 31 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 3b75797381b6..8b52122bc134 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c@@ -1254,20 +1254,19 @@ static dma_addr_t macb_get_addr(struct macb *bp, struct macb_dma_desc *desc) static void macb_tx_error_task(struct work_struct *work) { - struct macb_queue *queue = container_of(work, struct macb_queue, - tx_error_task); - bool halt_timeout = false; - struct macb *bp = queue->bp; - unsigned int q; - u32 packets = 0; - u32 bytes = 0; - struct macb_tx_skb *tx_skb; - struct macb_dma_desc *desc; - struct sk_buff *skb; - unsigned int tail; - unsigned long flags; + struct macb_queue *queue = container_of(work, struct macb_queue, + tx_error_task); + unsigned int q = queue - queue->bp->queues; + struct macb *bp = queue->bp; + struct macb_tx_skb *tx_skb; + struct macb_dma_desc *desc; + bool halt_timeout = false; + struct sk_buff *skb; + unsigned long flags; + unsigned int tail; + u32 packets = 0; + u32 bytes = 0; - q = queue - bp->queues; netdev_vdbg(bp->netdev, "macb_tx_error_task: q = %u, t = %u, h = %u\n", q, queue->tx_tail, queue->tx_head);
@@ -1487,11 +1486,11 @@ static int macb_tx_complete(struct macb_queue *queue, int budget) static void gem_rx_refill(struct macb_queue *queue) { - unsigned int entry; - struct sk_buff *skb; - dma_addr_t paddr; struct macb *bp = queue->bp; struct macb_dma_desc *desc; + struct sk_buff *skb; + unsigned int entry; + dma_addr_t paddr; while (CIRC_SPACE(queue->rx_prepared_head, queue->rx_tail, bp->rx_ring_size) > 0) {
@@ -1584,11 +1583,11 @@ static int gem_rx(struct macb_queue *queue, struct napi_struct *napi, int budget) { struct macb *bp = queue->bp; - unsigned int len; - unsigned int entry; - struct sk_buff *skb; - struct macb_dma_desc *desc; - int count = 0; + struct macb_dma_desc *desc; + struct sk_buff *skb; + unsigned int entry; + unsigned int len; + int count = 0; while (count < budget) { u32 ctrl;
@@ -1674,12 +1673,12 @@ static int gem_rx(struct macb_queue *queue, struct napi_struct *napi, static int macb_rx_frame(struct macb_queue *queue, struct napi_struct *napi, unsigned int first_frag, unsigned int last_frag) { - unsigned int len; - unsigned int frag; + struct macb *bp = queue->bp; + struct macb_dma_desc *desc; unsigned int offset; struct sk_buff *skb; - struct macb_dma_desc *desc; - struct macb *bp = queue->bp; + unsigned int frag; + unsigned int len; desc = macb_rx_desc(queue, last_frag); len = desc->ctrl & bp->rx_frm_len_mask;
@@ -1755,9 +1754,9 @@ static int macb_rx_frame(struct macb_queue *queue, struct napi_struct *napi, static inline void macb_init_rx_ring(struct macb_queue *queue) { + struct macb_dma_desc *desc = NULL; struct macb *bp = queue->bp; dma_addr_t addr; - struct macb_dma_desc *desc = NULL; int i; addr = queue->rx_buffers_dma;
@@ -1776,9 +1775,9 @@ static int macb_rx(struct macb_queue *queue, struct napi_struct *napi, { struct macb *bp = queue->bp; bool reset_rx_queue = false; - int received = 0; - unsigned int tail; int first_frag = -1; + unsigned int tail; + int received = 0; for (tail = queue->rx_tail; budget > 0; tail++) { struct macb_dma_desc *desc = macb_rx_desc(queue, tail);
@@ -1853,8 +1852,8 @@ static int macb_rx(struct macb_queue *queue, struct napi_struct *napi, static bool macb_rx_pending(struct macb_queue *queue) { struct macb *bp = queue->bp; - unsigned int entry; - struct macb_dma_desc *desc; + struct macb_dma_desc *desc; + unsigned int entry; entry = macb_rx_ring_wrap(bp, queue->rx_tail); desc = macb_rx_desc(queue, entry);
@@ -2474,10 +2473,10 @@ static netdev_tx_t macb_start_xmit(struct sk_buff *skb, unsigned int q = skb_get_queue_mapping(skb); unsigned int desc_cnt, nr_frags, frag_size, f; struct macb_queue *queue = &bp->queues[q]; + netdev_tx_t ret = NETDEV_TX_OK; unsigned int hdrlen; unsigned long flags; bool is_lso; - netdev_tx_t ret = NETDEV_TX_OK; if (macb_clear_csum(skb)) { dev_kfree_skb_any(skb);
--
2.55.0