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treewide: Use fallthrough pseudo-keyword

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Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
This commit is contained in:
Gustavo A. R. Silva
2020-08-23 17:36:59 -05:00
parent d012a7190f
commit df561f6688
1148 changed files with 2667 additions and 2737 deletions
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4
drivers/block/drbd/drbd_req.c
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@@ -611,7 +611,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
drbd_set_out_of_sync(device, req->i.sector, req->i.size);
drbd_report_io_error(device, req);
__drbd_chk_io_error(device, DRBD_READ_ERROR);
/* fall through. */
fallthrough;
case READ_AHEAD_COMPLETED_WITH_ERROR:
/* it is legal to fail read-ahead, no __drbd_chk_io_error in that case. */
mod_rq_state(req, m, RQ_LOCAL_PENDING, RQ_LOCAL_COMPLETED);
@@ -836,7 +836,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
} /* else: FIXME can this happen? */
break;
}
/* else, fall through - to BARRIER_ACKED */
fallthrough; /* to BARRIER_ACKED */
case BARRIER_ACKED:
/* barrier ack for READ requests does not make sense */