[PATCH] [net-next] net: korina: fix compile-testing on x86

From: Arnd Bergmann
Date: Wed Apr 21 2021 - 10:01:30 EST


From: Arnd Bergmann <arnd@xxxxxxxx>

The 'desc_empty' enum in this driver conflicts with a function
of the same namem that is declared in an x86 header:

drivers/net/ethernet/korina.c:326:9: error: 'desc_empty' redeclared as different kind of symbol
326 | desc_empty
| ^~~~~~~~~~
In file included from arch/x86/include/asm/elf.h:93,
from include/linux/elf.h:6,
from include/linux/module.h:18,
from drivers/net/ethernet/korina.c:36:
arch/x86/include/asm/desc.h:99:19: note: previous definition of 'desc_empty' with type 'int(const void *)'
99 | static inline int desc_empty(const void *ptr)

As the header was there first, rename the enum value to use
a more specific namespace.

Fixes: 6ef92063bf94 ("net: korina: Make driver COMPILE_TESTable")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/net/ethernet/korina.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 4878e527e3c8..300b5e8aac3a 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -322,8 +322,8 @@ struct dma_reg {
#define TX_TIMEOUT (6000 * HZ / 1000)

enum chain_status {
- desc_filled,
- desc_empty
+ korina_desc_filled,
+ korina_desc_empty
};

#define DMA_COUNT(count) ((count) & DMA_DESC_COUNT_MSK)
@@ -459,7 +459,7 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev)
chain_next = (idx + 1) & KORINA_TDS_MASK;

if (readl(&(lp->tx_dma_regs->dmandptr)) == 0) {
- if (lp->tx_chain_status == desc_empty) {
+ if (lp->tx_chain_status == korina_desc_empty) {
/* Update tail */
td->control = DMA_COUNT(length) |
DMA_DESC_COF | DMA_DESC_IOF;
@@ -486,16 +486,16 @@ static int korina_send_packet(struct sk_buff *skb, struct net_device *dev)
&lp->tx_dma_regs->dmandptr);
/* Move head to tail */
lp->tx_chain_head = lp->tx_chain_tail;
- lp->tx_chain_status = desc_empty;
+ lp->tx_chain_status = korina_desc_empty;
}
} else {
- if (lp->tx_chain_status == desc_empty) {
+ if (lp->tx_chain_status == korina_desc_empty) {
/* Update tail */
td->control = DMA_COUNT(length) |
DMA_DESC_COF | DMA_DESC_IOF;
/* Move tail */
lp->tx_chain_tail = chain_next;
- lp->tx_chain_status = desc_filled;
+ lp->tx_chain_status = korina_desc_filled;
} else {
/* Update tail */
td->control = DMA_COUNT(length) |
@@ -864,11 +864,11 @@ korina_tx_dma_interrupt(int irq, void *dev_id)

korina_tx(dev);

- if (lp->tx_chain_status == desc_filled &&
+ if (lp->tx_chain_status == korina_desc_filled &&
(readl(&(lp->tx_dma_regs->dmandptr)) == 0)) {
writel(korina_tx_dma(lp, lp->tx_chain_head),
&lp->tx_dma_regs->dmandptr);
- lp->tx_chain_status = desc_empty;
+ lp->tx_chain_status = korina_desc_empty;
lp->tx_chain_head = lp->tx_chain_tail;
netif_trans_update(dev);
}
@@ -999,7 +999,7 @@ static int korina_alloc_ring(struct net_device *dev)
}
lp->tx_next_done = lp->tx_chain_head = lp->tx_chain_tail =
lp->tx_full = lp->tx_count = 0;
- lp->tx_chain_status = desc_empty;
+ lp->tx_chain_status = korina_desc_empty;

/* Initialize the receive descriptors */
for (i = 0; i < KORINA_NUM_RDS; i++) {
@@ -1027,7 +1027,7 @@ static int korina_alloc_ring(struct net_device *dev)
lp->rx_next_done = 0;
lp->rx_chain_head = 0;
lp->rx_chain_tail = 0;
- lp->rx_chain_status = desc_empty;
+ lp->rx_chain_status = korina_desc_empty;

return 0;
}
--
2.29.2