The branch main has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=ff4633d9f897c2247bc67930740509a1ba315c81
commit ff4633d9f897c2247bc67930740509a1ba315c81 Author: Warner Losh <[email protected]> AuthorDate: 2023-07-21 16:11:37 +0000 Commit: Warner Losh <[email protected]> CommitDate: 2023-07-21 16:11:37 +0000 cam_periph: Comment about why we need to reset cbfcnp Just spent a few minutes puzzling out why we do this. Add a comment to remind my future self (and other intersted folk) why we do the reset here when we'd set it a few lines above. Sponsored by: Netflix --- sys/cam/cam_periph.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/cam/cam_periph.c b/sys/cam/cam_periph.c index 9ff3d156023d..0de73cffdc1f 100644 --- a/sys/cam/cam_periph.c +++ b/sys/cam/cam_periph.c @@ -1298,6 +1298,11 @@ cam_periph_runccb(union ccb *ccb, if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) error = 0; else if (error_routine != NULL) { + /* + * cbfcnp is modified by cam_periph_ccbwait so + * reset it before we call the error routine + * which may call xpt_done. + */ ccb->ccb_h.cbfcnp = cam_periph_done; error = (*error_routine)(ccb, camflags, sense_flags); } else
