diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2022-05-18 12:04:19 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-05-18 16:13:09 +0300 |
| commit | a3641ca416a3da7cbeae5bcf1fc26ba9797a1438 (patch) | |
| tree | c8179354c870cb1c13917ee899d114cd2572e85a /drivers/net/ethernet/smsc | |
| parent | 223153ea6c79a0d78dc2a04e3300de1deb336f14 (diff) | |
| download | linux-a3641ca416a3da7cbeae5bcf1fc26ba9797a1438.tar.xz | |
net: smc911x: Fix min() use in debug code
If ENABLE_SMC_DEBUG_PKTS=1:
drivers/net/ethernet/smsc/smc911x.c: In function ‘smc911x_hardware_send_pkt’:
include/linux/minmax.h:20:28: error: comparison of distinct pointer types lacks a cast [-Werror]
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
drivers/net/ethernet/smsc/smc911x.c:483:17: note: in expansion of macro ‘min’
483 | PRINT_PKT(buf, min(len, 64));
Fix this by making the constant unsigned, to match the type of "len".
While at it, replace the other missed ternary operator by min(), too.
Convert the dummy PRINT_PKT() from a macro to a static inline function,
to catch mistakes like this without having to enable debug options
manually.
Fixes: 5ff0348b7f755aac ("net: smc911x: replace ternary operator with min()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/smsc')
| -rw-r--r-- | drivers/net/ethernet/smsc/smc911x.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 2694287770e6..24d66af797d4 100644 --- a/drivers/net/ethernet/smsc/smc911x.c +++ b/drivers/net/ethernet/smsc/smc911x.c @@ -140,7 +140,7 @@ static void PRINT_PKT(u_char *buf, int length) pr_cont("\n"); } #else -#define PRINT_PKT(x...) do { } while (0) +static inline void PRINT_PKT(u_char *buf, int length) { } #endif @@ -430,7 +430,7 @@ static inline void smc911x_rcv(struct net_device *dev) SMC_PULL_DATA(lp, data, pkt_len+2+3); DBG(SMC_DEBUG_PKTS, dev, "Received packet\n"); - PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64); + PRINT_PKT(data, min(pkt_len - 4, 64U)); skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); dev->stats.rx_packets++; @@ -480,7 +480,7 @@ static void smc911x_hardware_send_pkt(struct net_device *dev) SMC_SET_TX_FIFO(lp, cmdB); DBG(SMC_DEBUG_PKTS, dev, "Transmitted packet\n"); - PRINT_PKT(buf, min(len, 64)); + PRINT_PKT(buf, min(len, 64U)); /* Send pkt via PIO or DMA */ #ifdef SMC_USE_DMA |