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| author |   mikeb <mikeb@openbsd.org> | 2016-08-05 18:05:44 +0000 |
|---|---|---|
| committer | mikeb <mikeb@openbsd.org> | 2016-08-05 18:05:44 +0000 |
| commit | 0cfd58174bdeb92e8bbb188693d7a4c569405c5d (patch) | |
| tree | e607d296ffa0f491179fa0ea12bce03d41d4ce2e | |
| parent | Do not *printf %s NULL (diff) | |
| download | wireguard-openbsd-0cfd58174bdeb92e8bbb188693d7a4c569405c5d.tar.xz wireguard-openbsd-0cfd58174bdeb92e8bbb188693d7a4c569405c5d.zip | |
Remove incorrect optimization: ring data portion size is not power of 2
| -rw-r--r-- | sys/dev/pv/hyperv.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/dev/pv/hyperv.c b/sys/dev/pv/hyperv.c index ddd21e3aceb..b7970a092f1 100644 --- a/sys/dev/pv/hyperv.c +++ b/sys/dev/pv/hyperv.c @@ -1226,7 +1226,7 @@ hv_ring_put(struct hv_ring_data *wrd, uint8_t *data, uint32_t datalen) memcpy(&wrd->rd_ring->buffer[wrd->rd_prod], data, left); memcpy(&wrd->rd_ring->buffer[0], data + left, datalen - left); wrd->rd_prod += datalen; - wrd->rd_prod &= wrd->rd_data_size - 1; + wrd->rd_prod %= wrd->rd_data_size; } static inline void @@ -1239,7 +1239,7 @@ hv_ring_get(struct hv_ring_data *rrd, uint8_t *data, uint32_t datalen, memcpy(data + left, &rrd->rd_ring->buffer[0], datalen - left); if (!peek) { rrd->rd_cons += datalen; - rrd->rd_cons &= rrd->rd_data_size - 1; + rrd->rd_cons %= rrd->rd_data_size; } } @@ -1418,7 +1418,7 @@ hv_ring_read(struct hv_ring_data *rrd, void *data, uint32_t datalen, if (offset) { rrd->rd_cons += offset; - rrd->rd_cons &= rrd->rd_data_size - 1; + rrd->rd_cons %= rrd->rd_data_size; } hv_ring_get(rrd, (uint8_t *)data, datalen, 0); |