From b22da3d8526a935aa31e086e63f60ff3246cb61c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 07:24:11 +0000
Subject: [PATCH] add stmac read mac form eeprom
---
kernel/net/decnet/sysctl_net_decnet.c | 29 +++++++++--------------------
1 files changed, 9 insertions(+), 20 deletions(-)
diff --git a/kernel/net/decnet/sysctl_net_decnet.c b/kernel/net/decnet/sysctl_net_decnet.c
index 55bf64a..67b5ab2 100644
--- a/kernel/net/decnet/sysctl_net_decnet.c
+++ b/kernel/net/decnet/sysctl_net_decnet.c
@@ -75,7 +75,7 @@
case '\r':
case ':':
*str = 0;
- /* Fallthrough */
+ fallthrough;
case 0:
return;
}
@@ -134,8 +134,7 @@
}
static int dn_node_address_handler(struct ctl_table *table, int write,
- void __user *buffer,
- size_t *lenp, loff_t *ppos)
+ void *buffer, size_t *lenp, loff_t *ppos)
{
char addr[DN_ASCBUF_LEN];
size_t len;
@@ -148,10 +147,7 @@
if (write) {
len = (*lenp < DN_ASCBUF_LEN) ? *lenp : (DN_ASCBUF_LEN-1);
-
- if (copy_from_user(addr, buffer, len))
- return -EFAULT;
-
+ memcpy(addr, buffer, len);
addr[len] = 0;
strip_it(addr);
@@ -173,11 +169,9 @@
len = strlen(addr);
addr[len++] = '\n';
- if (len > *lenp) len = *lenp;
-
- if (copy_to_user(buffer, addr, len))
- return -EFAULT;
-
+ if (len > *lenp)
+ len = *lenp;
+ memcpy(buffer, addr, len);
*lenp = len;
*ppos += len;
@@ -185,8 +179,7 @@
}
static int dn_def_dev_handler(struct ctl_table *table, int write,
- void __user *buffer,
- size_t *lenp, loff_t *ppos)
+ void *buffer, size_t *lenp, loff_t *ppos)
{
size_t len;
struct net_device *dev;
@@ -201,9 +194,7 @@
if (*lenp > 16)
return -E2BIG;
- if (copy_from_user(devname, buffer, *lenp))
- return -EFAULT;
-
+ memcpy(devname, buffer, *lenp);
devname[*lenp] = 0;
strip_it(devname);
@@ -238,9 +229,7 @@
if (len > *lenp) len = *lenp;
- if (copy_to_user(buffer, devname, len))
- return -EFAULT;
-
+ memcpy(buffer, devname, len);
*lenp = len;
*ppos += len;
--
Gitblit v1.6.2