Re: [PATCH] scsi: cxlflash: Mark expected switch fall-throughs

Matthew R. Ochs
2019-07-30T18:52:46Z

On Sun, Jul 28, 2019 at 07:21:19PM -0500, Gustavo A. R. Silva wrote:
> Mark switch cases where we are expecting to fall through.
>
> This patch fixes the following warnings:
>
> drivers/scsi/cxlflash/main.c: In function 'send_afu_cmd':
> drivers/scsi/cxlflash/main.c:2347:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (rc) {
> ^
> drivers/scsi/cxlflash/main.c:2357:2: note: here
> case -EAGAIN:
> ^~~~
> drivers/scsi/cxlflash/main.c: In function 'term_intr':
> drivers/scsi/cxlflash/main.c:754:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (index == PRIMARY_HWQ)
> ^
> drivers/scsi/cxlflash/main.c:756:2: note: here
> case UNMAP_TWO:
> ^~~~
> drivers/scsi/cxlflash/main.c:757:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 2, hwq);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:758:2: note: here
> case UNMAP_ONE:
> ^~~~
> drivers/scsi/cxlflash/main.c:759:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 1, hwq);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:760:2: note: here
> case FREE_IRQ:
> ^~~~
> drivers/scsi/cxlflash/main.c: In function 'cxlflash_remove':
> drivers/scsi/cxlflash/main.c:975:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> cxlflash_release_chrdev(cfg);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:976:2: note: here
> case INIT_STATE_SCSI:
> ^~~~
> drivers/scsi/cxlflash/main.c:978:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> scsi_remove_host(cfg->host);
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:979:2: note: here
> case INIT_STATE_AFU:
> ^~~~
> drivers/scsi/cxlflash/main.c:980:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> term_afu(cfg);
> ^~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:981:2: note: here
> case INIT_STATE_PCI:
> ^~~~
> drivers/scsi/cxlflash/main.c:983:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> pci_disable_device(pdev);
> ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:984:2: note: here
> case INIT_STATE_NONE:
> ^~~~
> drivers/scsi/cxlflash/main.c: In function 'num_hwqs_store':
> drivers/scsi/cxlflash/main.c:3018:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (cfg->state == STATE_NORMAL)
> ^
> drivers/scsi/cxlflash/main.c:3020:2: note: here
> default:
> ^~~~~~~
>
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Acked-by: Matthew R. Ochs <mrochs@linux.ibm.com>