From 59753ce8b196de60211a989c75ece8aeb0d9d57c Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Sun, 14 Mar 2021 11:11:41 +0000 Subject: [PATCH] ethernet: constify eth_get_headlen()'s data argument It's used only for flow dissection, which now takes constant data pointers. Signed-off-by: Alexander Lobakin Signed-off-by: David S. Miller --- include/linux/etherdevice.h | 2 +- net/ethernet/eth.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index bcb2f81baafb..330345b1be54 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -29,7 +29,7 @@ struct device; int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr); unsigned char *arch_get_platform_mac_address(void); int nvmem_get_mac_address(struct device *dev, void *addrbuf); -u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len); +u32 eth_get_headlen(const struct net_device *dev, const void *data, u32 len); __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev); extern const struct header_ops eth_header_ops; diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 4106373180c6..e01cf766d2c5 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -122,7 +122,7 @@ EXPORT_SYMBOL(eth_header); * Make a best effort attempt to pull the length for all of the headers for * a given frame in a linear buffer. */ -u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len) +u32 eth_get_headlen(const struct net_device *dev, const void *data, u32 len) { const unsigned int flags = FLOW_DISSECTOR_F_PARSE_1ST_FRAG; const struct ethhdr *eth = (const struct ethhdr *)data; -- 2.20.1