diff options
| author | Patrick Rabau <pr2345@gmail.com> | 2010-02-15 19:42:11 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-16 15:19:04 -0800 |
| commit | c9885fe5a76dea798543f2938a872bc159e8e69a (patch) | |
| tree | 47d0d0f90753dc2179cd36e12825b0e608ed3c50 | |
| parent | beb499afe3c9c006bb2d66ceaff0f354d0405ff4 (diff) | |
| download | lwn-c9885fe5a76dea798543f2938a872bc159e8e69a.tar.gz lwn-c9885fe5a76dea798543f2938a872bc159e8e69a.zip | |
bnx2: Fix bug when saving statistics.
This fixes the problem of dropping the carry when adding 2 32-bit values.
Switch to use array indexing for better readability.
Reported by and fix provided by Patrick Rabau.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bnx2.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index d1e5e5d9e986..3fb110edad49 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -6555,16 +6555,16 @@ bnx2_save_stats(struct bnx2 *bp) u32 hi; u64 lo; - hi = *(temp_stats + i) + *(hw_stats + i); - lo = *(temp_stats + i + 1) + *(hw_stats + i + 1); + hi = temp_stats[i] + hw_stats[i]; + lo = (u64) temp_stats[i + 1] + (u64) hw_stats[i + 1]; if (lo > 0xffffffff) hi++; - *(temp_stats + i) = hi; - *(temp_stats + i + 1) = lo & 0xffffffff; + temp_stats[i] = hi; + temp_stats[i + 1] = lo & 0xffffffff; } for ( ; i < sizeof(struct statistics_block) / 4; i++) - *(temp_stats + i) = *(temp_stats + i) + *(hw_stats + i); + temp_stats[i] += hw_stats[i]; } #define GET_64BIT_NET_STATS64(ctr) \ |