Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR (net-6.14-rc6).

Conflicts:

tools/testing/selftests/drivers/net/ping.py
  75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py")
  de94e8697405 ("selftests: drv-net: store addresses in dict indexed by ipver")
https://lore.kernel.org/netdev/20250311115758.17a1d414@canb.auug.org.au/

net/core/devmem.c
  a70f891e0fa0 ("net: devmem: do not WARN conditionally after netdev_rx_queue_restart()")
  1d22d3060b9b ("net: drop rtnl_lock for queue_mgmt operations")
https://lore.kernel.org/netdev/20250313114929.43744df1@canb.auug.org.au/

Adjacent changes:

tools/testing/selftests/net/Makefile
  6f50175ccad4 ("selftests: Add IPv6 link-local address generation tests for GRE devices.")
  2e5584e0f913 ("selftests/net: expand cmsg_ipv6.sh with ipv4")

drivers/net/ethernet/broadcom/bnxt/bnxt.c
  661958552eda ("eth: bnxt: do not use BNXT_VNIC_NTUPLE unconditionally in queue restart logic")
  fe96d717d38e ("bnxt_en: Extend queue stop/start for TX rings")

Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 18 insertions, 23 deletions

diff --git a/drivers/spi/spi-microchip-core.c b/drivers/spi/spi-microchip-core.c
index 5b6af55855ef..62ba0bd9cbb7 100644
--- a/drivers/spi/spi-microchip-core.c
+++ b/drivers/spi/spi-microchip-core.c
@@ -70,8 +70,7 @@
 #define INT_RX_CHANNEL_OVERFLOW		BIT(2)
 #define INT_TX_CHANNEL_UNDERRUN		BIT(3)
 
-#define INT_ENABLE_MASK (CONTROL_RX_DATA_INT | CONTROL_TX_DATA_INT | \
-			 CONTROL_RX_OVER_INT | CONTROL_TX_UNDER_INT)
+#define INT_ENABLE_MASK (CONTROL_RX_OVER_INT | CONTROL_TX_UNDER_INT)
 
 #define REG_CONTROL		(0x00)
 #define REG_FRAME_SIZE		(0x04)
@@ -133,10 +132,15 @@ static inline void mchp_corespi_disable(struct mchp_corespi *spi)
 	mchp_corespi_write(spi, REG_CONTROL, control);
 }
 
-static inline void mchp_corespi_read_fifo(struct mchp_corespi *spi)
+static inline void mchp_corespi_read_fifo(struct mchp_corespi *spi, int fifo_max)
 {
-	while (spi->rx_len >= spi->n_bytes && !(mchp_corespi_read(spi, REG_STATUS) & STATUS_RXFIFO_EMPTY)) {
-		u32 data = mchp_corespi_read(spi, REG_RX_DATA);
+	for (int i = 0; i < fifo_max; i++) {
+		u32 data;
+
+		while (mchp_corespi_read(spi, REG_STATUS) & STATUS_RXFIFO_EMPTY)
+			;
+
+		data = mchp_corespi_read(spi, REG_RX_DATA);
 
 		spi->rx_len -= spi->n_bytes;
 
@@ -211,11 +215,10 @@ static inline void mchp_corespi_set_xfer_size(struct mchp_corespi *spi, int len)
 	mchp_corespi_write(spi, REG_FRAMESUP, len);
 }
 
-static inline void mchp_corespi_write_fifo(struct mchp_corespi *spi)
+static inline void mchp_corespi_write_fifo(struct mchp_corespi *spi, int fifo_max)
 {
-	int fifo_max, i = 0;
+	int i = 0;
 
-	fifo_max = DIV_ROUND_UP(min(spi->tx_len, FIFO_DEPTH), spi->n_bytes);
 	mchp_corespi_set_xfer_size(spi, fifo_max);
 
 	while ((i < fifo_max) && !(mchp_corespi_read(spi, REG_STATUS) & STATUS_TXFIFO_FULL)) {
@@ -413,19 +416,6 @@ static irqreturn_t mchp_corespi_interrupt(int irq, void *dev_id)
 	if (intfield == 0)
 		return IRQ_NONE;
 
-	if (intfield & INT_TXDONE)
-		mchp_corespi_write(spi, REG_INT_CLEAR, INT_TXDONE);
-
-	if (intfield & INT_RXRDY) {
-		mchp_corespi_write(spi, REG_INT_CLEAR, INT_RXRDY);
-
-		if (spi->rx_len)
-			mchp_corespi_read_fifo(spi);
-	}
-
-	if (!spi->rx_len && !spi->tx_len)
-		finalise = true;
-
 	if (intfield & INT_RX_CHANNEL_OVERFLOW) {
 		mchp_corespi_write(spi, REG_INT_CLEAR, INT_RX_CHANNEL_OVERFLOW);
 		finalise = true;
@@ -512,9 +502,14 @@ static int mchp_corespi_transfer_one(struct spi_controller *host,
 
 	mchp_corespi_write(spi, REG_SLAVE_SELECT, spi->pending_slave_select);
 
-	while (spi->tx_len)
-		mchp_corespi_write_fifo(spi);
+	while (spi->tx_len) {
+		int fifo_max = DIV_ROUND_UP(min(spi->tx_len, FIFO_DEPTH), spi->n_bytes);
+
+		mchp_corespi_write_fifo(spi, fifo_max);
+		mchp_corespi_read_fifo(spi, fifo_max);
+	}
 
+	spi_finalize_current_transfer(host);
 	return 1;
 }