From bb1215a2d011db15e9a8d5d2469c0ad9651d7660 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 2 Jul 2018 10:47:05 +0100 Subject: [PATCH 1/3] ide: remove redundant variables queue_run_ms and left MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Variable queue_run_ms is not being used and is redundant and hence can be removed. Removing this also means that variable left can also be removed. Cleans up clang warning: warning: variable ‘queue_run_ms’ set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/ide/ide-io.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index a444bad7a2aa..0d93e0cfbeaf 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -460,7 +460,6 @@ void do_ide_request(struct request_queue *q) struct ide_host *host = hwif->host; struct request *rq = NULL; ide_startstop_t startstop; - unsigned long queue_run_ms = 3; /* old plug delay */ spin_unlock_irq(q->queue_lock); @@ -480,9 +479,6 @@ void do_ide_request(struct request_queue *q) prev_port = hwif->host->cur_port; if (drive->dev_flags & IDE_DFLAG_SLEEPING && time_after(drive->sleep, jiffies)) { - unsigned long left = jiffies - drive->sleep; - - queue_run_ms = jiffies_to_msecs(left + 1); ide_unlock_port(hwif); goto plug_device; } From 777a82f87a9af591c3b02e9983d6cd3109022ea9 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 2 Jul 2018 11:00:26 +0100 Subject: [PATCH 2/3] ide-tape: remove redundant variable buffer_size Variable buffer_size is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'buffer_size' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King Signed-off-by: David S. Miller --- drivers/ide/ide-tape.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index aee7b46d2330..34c1165226a4 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1746,7 +1746,6 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) { unsigned long t; int speed; - int buffer_size; u16 *ctl = (u16 *)&tape->caps[12]; ide_debug_log(IDE_DBG_FUNC, "minor: %d", minor); @@ -1781,7 +1780,6 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) *ctl /= 2; tape->buffer_size = *ctl * tape->blk_size; } - buffer_size = tape->buffer_size; /* select the "best" DSC read/write polling freq */ speed = max(*(u16 *)&tape->caps[14], *(u16 *)&tape->caps[8]); From a2eed33dcdb7663170b01f05dd8d0a3323ffe4b3 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Tue, 3 Jul 2018 14:23:05 -0500 Subject: [PATCH 3/3] ide: mark expected switch fall-throughs In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva Signed-off-by: David S. Miller --- drivers/ide/hpt366.c | 5 +++-- drivers/ide/ide-floppy.c | 1 + drivers/ide/ide-probe.c | 1 + drivers/ide/ide-taskfile.c | 3 ++- drivers/ide/sis5513.c | 1 + 5 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c index e52c58c29d9a..4d565b0c5a6e 100644 --- a/drivers/ide/hpt366.c +++ b/drivers/ide/hpt366.c @@ -574,13 +574,14 @@ static u8 hpt3xx_udma_filter(ide_drive_t *drive) if (!HPT370_ALLOW_ATA100_5 || check_in_drive_list(drive, bad_ata100_5)) return ATA_UDMA4; + /* else: fall through */ case HPT372 : case HPT372A: case HPT372N: case HPT374 : if (ata_id_is_sata(drive->id)) mask &= ~0x0e; - /* Fall thru */ + /* fall through */ default: return mask; } @@ -600,7 +601,7 @@ static u8 hpt3xx_mdma_filter(ide_drive_t *drive) case HPT374 : if (ata_id_is_sata(drive->id)) return 0x00; - /* Fall thru */ + /* else: fall through */ default: return 0x07; } diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 5bd2aafc3753..a8df300f949c 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -427,6 +427,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive) * (maintains previous driver behaviour) */ break; + /* else: fall through */ case CAPACITY_CURRENT: /* Normal Zip/LS-120 disks */ if (memcmp(cap_desc, &floppy->cap_desc, 8)) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 416a2f353071..3b75a7b7a284 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -142,6 +142,7 @@ static void ide_classify_atapi_dev(ide_drive_t *drive) } /* Early cdrom models used zero */ type = ide_cdrom; + /* fall through */ case ide_cdrom: drive->dev_flags |= IDE_DFLAG_REMOVABLE; #ifdef CONFIG_PPC diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 89b29028d315..c21d5c50ae3a 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -128,7 +128,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd) return pre_task_out_intr(drive, cmd); } handler = task_pio_intr; - /* fall-through */ + /* fall through */ case ATA_PROT_NODATA: if (handler == NULL) handler = task_no_data_intr; @@ -140,6 +140,7 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd) hwif->expiry = dma_ops->dma_timer_expiry; ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD); dma_ops->dma_start(drive); + /* fall through */ default: return ide_started; } diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c index c3062b53056f..024bc7ba49ee 100644 --- a/drivers/ide/sis5513.c +++ b/drivers/ide/sis5513.c @@ -494,6 +494,7 @@ static int init_chipset_sis5513(struct pci_dev *dev) pci_read_config_byte(dev, 0x09, ®); if ((reg & 0x0f) != 0x00) pci_write_config_byte(dev, 0x09, reg&0xf0); + /* fall through */ case ATA_16: /* force per drive recovery and active timings needed on ATA_33 and below chips */