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scsi: aic7xxx: Fix fall-through warnings for Clang 

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of just
letting the code fall through to the next case, and by adding fallthrough
statements in places where the code is intended to fall through, and
finally by replacing /* FALLTHROUGH */ comments with the new pseudo-keyword
macro fallthrough.

Link: https://github.com/KSPP/linux/issues/115
Link: https://lore.kernel.org/r/1a7cd2f77623e6ab46bbec0b6103b18491419206.1605896059.git.gustavoars@kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Gustavo A. R. Silva 2020-11-20 12:27:16 -06:00 committed by Martin K. Petersen
parent 9d8de441db
commit 995ae10f80
2 changed files with 5 additions and 3 deletions
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4
drivers/scsi/aic7xxx/aic79xx_core.c
View File

@ -6130,6 +6130,7 @@ ahd_free(struct ahd_softc *ahd)
fallthrough;
case 2:
ahd_dma_tag_destroy(ahd, ahd->shared_data_dmat);
break;
case 1:
break;
case 0:
@ -6542,8 +6543,8 @@ ahd_fini_scbdata(struct ahd_softc *ahd)
kfree(hscb_map);
}
ahd_dma_tag_destroy(ahd, scb_data->hscb_dmat);
/* FALLTHROUGH */
}
fallthrough;
case 4:
case 3:
case 2:
@ -8907,6 +8908,7 @@ ahd_handle_scsi_status(struct ahd_softc *ahd, struct scb *scb)
break;
case SIU_PFC_ILLEGAL_REQUEST:
printk("Illegal request\n");
break;
default:
break;
}

4
drivers/scsi/aic7xxx/aic7xxx_core.c
View File

@ -4478,6 +4478,7 @@ ahc_free(struct ahc_softc *ahc)
fallthrough;
case 2:
ahc_dma_tag_destroy(ahc, ahc->shared_data_dmat);
fallthrough;
case 1:
break;
case 0:
@ -5865,9 +5866,8 @@ ahc_search_qinfifo(struct ahc_softc *ahc, int target, char channel,
if ((scb->flags & SCB_ACTIVE) == 0)
printk("Inactive SCB in qinfifo\n");
ahc_done(ahc, scb);
/* FALLTHROUGH */
}
fallthrough;
case SEARCH_REMOVE:
break;
case SEARCH_COUNT: