diff options
| author | Mariusz Zaborski <oshogbo@FreeBSD.org> | 2023-04-21 07:50:16 +0000 |
|---|---|---|
| committer | Gordon Tetlow <gordon@FreeBSD.org> | 2023-06-21 05:08:39 +0000 |
| commit | c7b05da29795f263c0b511d8ef4755a784439dc4 (patch) | |
| tree | ba3a2a2c0f86069d76e04bcfa4c0191333c7a332 | |
| parent | 548ece23b51c10ec67b82cac3232eeaf6931b48d (diff) | |
mpr: fix copying of event_mask
Before the commit 6cc44223cb6717795afdac4348bbe7e2a968a07d the
field event_mask was fully copied to the EventMasks field.
After this commit the event_mask (uint8_t) is 4 times casted to
EventMask (uint32_t). Because of that 24 bits of each event_mask array
is lost.
This commits brings back simple copying of field, and after words
converting 32 bits field to the requested endian.
I don't think we need more sophisticated method,
as the array is of size 4 (for 32 bits version).
Reviewed by: imp
MFC after: 1 week
Sponsored by: Klara Inc.
Differential Revision: https://reviews.freebsd.org/D39562
(cherry picked from commit ea6597c38c77c7bfaae71259d8636cbb89add6a3)
(cherry picked from commit 2de69df6f398987cecbc5ac02b2183c561e0f220)
Approved by: so
Security: FreeBSD-EN-23:07.mpr
| -rw-r--r-- | sys/dev/mpr/mpr.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/dev/mpr/mpr.c b/sys/dev/mpr/mpr.c index 308c88112168..33afb7adf852 100644 --- a/sys/dev/mpr/mpr.c +++ b/sys/dev/mpr/mpr.c @@ -2795,8 +2795,9 @@ mpr_update_events(struct mpr_softc *sc, struct mpr_event_handle *handle, bcopy(fullmask, (uint8_t *)&evtreq->EventMasks, 16); } #else + bcopy(sc->event_mask, (uint8_t *)&evtreq->EventMasks, sizeof(sc->event_mask)); for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) - evtreq->EventMasks[i] = htole32(sc->event_mask[i]); + evtreq->EventMasks[i] = htole32(evtreq->EventMasks[i]); #endif cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; cm->cm_data = NULL; @@ -2850,8 +2851,9 @@ mpr_reregister_events(struct mpr_softc *sc) bcopy(fullmask, (uint8_t *)&evtreq->EventMasks, 16); } #else + bcopy(sc->event_mask, (uint8_t *)&evtreq->EventMasks, sizeof(sc->event_mask)); for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) - evtreq->EventMasks[i] = htole32(sc->event_mask[i]); + evtreq->EventMasks[i] = htole32(evtreq->EventMasks[i]); #endif cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE; cm->cm_data = NULL; |