diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/proc.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c index aba94316b773..7a00bedb6b93 100644 --- a/net/ipv6/proc.c +++ b/net/ipv6/proc.c @@ -23,6 +23,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/stddef.h> +#include <asm/unaligned.h> #include <net/sock.h> #include <net/tcp.h> #include <net/transp_v6.h> @@ -210,30 +211,23 @@ static const struct file_operations snmp6_seq_fops = { }; #endif /* CONFIG_PROC_FS */ -/* - * Stats may not be aligned for u64, so use memcpy to avoid - * unaligned accesses. - */ -static inline void __set_u64(void *p, u64 v) -{ - memcpy(p, &v, sizeof(u64)); -} - static inline void -__snmp6_fill_stats(void *stats, void **mib, int items, int bytes) +__snmp6_fill_stats(u64 *stats, void **mib, int items, int bytes) { int i; - u8 *p = stats; int pad = bytes - sizeof(u64) * items; BUG_ON(pad < 0); - __set_u64(p, items); - for (i = 1, p += sizeof(u64); i < items; i++, p += sizeof(u64)) - __set_u64(p, fold_field(mib, i)); - memset(p, 0, pad); + + /* Use put_unaligned() because stats may not be aligned for u64. */ + put_unaligned(items, &stats[0]); + for (i = 1; i < items; i++) + put_unaligned(fold_field(mib, i), &stats[i]); + + memset(&stats[items], 0, pad); } void -snmp6_fill_stats(void *stats, struct inet6_dev *idev, int attrtype, int bytes) +snmp6_fill_stats(u64 *stats, struct inet6_dev *idev, int attrtype, int bytes) { switch(attrtype) { case IFLA_INET6_STATS: |