From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M
---
kernel/drivers/net/plip/plip.c | 44 ++++++++++++++++++++------------------------
1 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/kernel/drivers/net/plip/plip.c b/kernel/drivers/net/plip/plip.c
index feb92ec..22f7db8 100644
--- a/kernel/drivers/net/plip/plip.c
+++ b/kernel/drivers/net/plip/plip.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* $Id: plip.c,v 1.3.6.2 1997/04/16 15:07:56 phil Exp $ */
/* PLIP: A parallel port "network" driver for Linux. */
/* This driver is for parallel port with 5-bit cable (LapLink (R) cable). */
@@ -29,11 +30,6 @@
* Al Viro
* - Changed {enable,disable}_irq handling to make it work
* with new ("stack") semantics.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
/*
@@ -146,7 +142,7 @@
static void plip_interrupt(void *dev_id);
/* Functions for DEV methods */
-static int plip_tx_packet(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t plip_tx_packet(struct sk_buff *skb, struct net_device *dev);
static int plip_hard_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type, const void *daddr,
const void *saddr, unsigned len);
@@ -448,12 +444,12 @@
}
rcv->state = PLIP_PK_DONE;
if (rcv->skb) {
- kfree_skb(rcv->skb);
+ dev_kfree_skb_irq(rcv->skb);
rcv->skb = NULL;
}
snd->state = PLIP_PK_DONE;
if (snd->skb) {
- dev_kfree_skb(snd->skb);
+ dev_consume_skb_irq(snd->skb);
snd->skb = NULL;
}
spin_unlock_irq(&nl->lock);
@@ -502,7 +498,7 @@
*data_p = (c0 >> 3) & 0x0f;
write_data (dev, 0x10); /* send ACK */
*ns_p = PLIP_NB_1;
- /* fall through */
+ fallthrough;
case PLIP_NB_1:
cx = nibble_timeout;
@@ -598,7 +594,7 @@
printk(KERN_DEBUG "%s: receive start\n", dev->name);
rcv->state = PLIP_PK_LENGTH_LSB;
rcv->nibble = PLIP_NB_BEGIN;
- /* fall through */
+ fallthrough;
case PLIP_PK_LENGTH_LSB:
if (snd->state != PLIP_PK_DONE) {
@@ -619,7 +615,7 @@
return TIMEOUT;
}
rcv->state = PLIP_PK_LENGTH_MSB;
- /* fall through */
+ fallthrough;
case PLIP_PK_LENGTH_MSB:
if (plip_receive(nibble_timeout, dev,
@@ -642,7 +638,7 @@
rcv->state = PLIP_PK_DATA;
rcv->byte = 0;
rcv->checksum = 0;
- /* fall through */
+ fallthrough;
case PLIP_PK_DATA:
lbuf = rcv->skb->data;
@@ -655,7 +651,7 @@
rcv->checksum += lbuf[--rcv->byte];
} while (rcv->byte);
rcv->state = PLIP_PK_CHECKSUM;
- /* fall through */
+ fallthrough;
case PLIP_PK_CHECKSUM:
if (plip_receive(nibble_timeout, dev,
@@ -668,7 +664,7 @@
return ERROR;
}
rcv->state = PLIP_PK_DONE;
- /* fall through */
+ fallthrough;
case PLIP_PK_DONE:
/* Inform the upper layer for the arrival of a packet. */
@@ -714,7 +710,7 @@
case PLIP_NB_BEGIN:
write_data (dev, data & 0x0f);
*ns_p = PLIP_NB_1;
- /* fall through */
+ fallthrough;
case PLIP_NB_1:
write_data (dev, 0x10 | (data & 0x0f));
@@ -729,7 +725,7 @@
}
write_data (dev, 0x10 | (data >> 4));
*ns_p = PLIP_NB_2;
- /* fall through */
+ fallthrough;
case PLIP_NB_2:
write_data (dev, (data >> 4));
@@ -818,7 +814,7 @@
&snd->nibble, snd->length.b.lsb))
return TIMEOUT;
snd->state = PLIP_PK_LENGTH_MSB;
- /* fall through */
+ fallthrough;
case PLIP_PK_LENGTH_MSB:
if (plip_send(nibble_timeout, dev,
@@ -827,7 +823,7 @@
snd->state = PLIP_PK_DATA;
snd->byte = 0;
snd->checksum = 0;
- /* fall through */
+ fallthrough;
case PLIP_PK_DATA:
do {
@@ -839,7 +835,7 @@
snd->checksum += lbuf[--snd->byte];
} while (snd->byte);
snd->state = PLIP_PK_CHECKSUM;
- /* fall through */
+ fallthrough;
case PLIP_PK_CHECKSUM:
if (plip_send(nibble_timeout, dev,
@@ -850,7 +846,7 @@
dev_kfree_skb(snd->skb);
dev->stats.tx_packets++;
snd->state = PLIP_PK_DONE;
- /* fall through */
+ fallthrough;
case PLIP_PK_DONE:
/* Close the connection */
@@ -939,7 +935,7 @@
switch (nl->connection) {
case PLIP_CN_CLOSING:
netif_wake_queue (dev);
- /* fall through */
+ fallthrough;
case PLIP_CN_NONE:
case PLIP_CN_SEND:
rcv->state = PLIP_PK_TRIGGER;
@@ -962,7 +958,7 @@
spin_unlock_irqrestore(&nl->lock, flags);
}
-static int
+static netdev_tx_t
plip_tx_packet(struct sk_buff *skb, struct net_device *dev)
{
struct net_local *nl = netdev_priv(dev);
@@ -1012,7 +1008,7 @@
in_dev = __in_dev_get_rcu(dev);
if (in_dev) {
/* Any address will do - we take the first */
- const struct in_ifaddr *ifa = in_dev->ifa_list;
+ const struct in_ifaddr *ifa = rcu_dereference(in_dev->ifa_list);
if (ifa) {
memcpy(eth->h_source, dev->dev_addr, ETH_ALEN);
memset(eth->h_dest, 0xfc, 2);
@@ -1107,7 +1103,7 @@
/* Any address will do - we take the first. We already
have the first two bytes filled with 0xfc, from
plip_init_dev(). */
- struct in_ifaddr *ifa=in_dev->ifa_list;
+ const struct in_ifaddr *ifa = rtnl_dereference(in_dev->ifa_list);
if (ifa != NULL) {
memcpy(dev->dev_addr+2, &ifa->ifa_local, 4);
}
--
Gitblit v1.6.2