net: macb: enforce reverse christmas tree (RCT) convention

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.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://patch.msgid.link/20260812-macb-context-v9-5-7ddbf5f715e0@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 30 insertions, 31 deletions

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 77053cb9d8f7..b138b94ea0d8 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, "%s: q = %u, t = %u, h = %u\n",
 		    __func__, 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;
@@ -1675,12 +1674,12 @@ 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;
@@ -1757,9 +1756,9 @@ 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;
@@ -1778,9 +1777,9 @@ 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);
@@ -1855,8 +1854,8 @@ 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);
@@ -2476,10 +2475,10 @@ 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);