Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue

Pull compat_ioctl cleanup from Arnd. Here's his description:

This series concludes the work I did for linux-5.5 on the compat_ioctl()
cleanup, killing off fs/compat_ioctl.c and block/compat_ioctl.c by moving
everything into drivers.

Overall this would be a reduction both in complexity and line count, but
as I'm also adding documentation the overall number of lines increases
in the end.

My plan was originally to keep the SCSI and block parts separate.
This did not work easily because of interdependencies: I cannot
do the final SCSI cleanup in a good way without first addressing the
CDROM ioctls, so this is one series that I hope could be merged through
either the block or the scsi git trees, or possibly both if you can
pull in the same branch.

The series comes in these steps:

1. clean up the sg v3 interface as suggested by Linus. I have
   talked about this with Doug Gilbert as well, and he would
   rebase his sg v4 patches on top of "compat: scsi: sg: fix v3
   compat read/write interface"

2. Actually moving handlers out of block/compat_ioctl.c and
   block/scsi_ioctl.c into drivers, mixed in with cleanup
   patches

3. Document how to do this right. I keep getting asked about this,
   and it helps to point to some documentation file.

The branch is based on another one that fixes a couple of bugs found
during the creation of this series.

Changes since v3:
  https://lore.kernel.org/lkml/20200102145552.1853992-1-arnd@arndb.de/

- Move sr_compat_ioctl fixup to correct patch (Ben Hutchings)
- Add Reviewed-by tags

Changes since v2:
  https://lore.kernel.org/lkml/20191217221708.3730997-1-arnd@arndb.de/

- Rebase to v5.5-rc4, which contains the earlier bugfixes
- Fix sr_block_compat_ioctl() error handling bug found by
  Ben Hutchings
- Fix idecd_locked_compat_ioctl() compat_ptr() bug
- Don't try to handle HDIO_DRIVE_TASKFILE in drivers/ide
- More documentation improvements

Changes since v1:
  https://lore.kernel.org/lkml/20191211204306.1207817-1-arnd@arndb.de/

- move out the bugfixes into a branch for itself
- clean up scsi sg driver further as suggested by Christoph Hellwig
- avoid some ifdefs by moving compat_ptr() out of asm/compat.h
- split out the blkdev_compat_ptr_ioctl function; bug spotted by
  Ben Hutchings
- Improve formatting of documentation

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

3 files changed, 7 insertions, 8 deletions

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index d7504b2990a3..819335b16c2e 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -5392,7 +5392,6 @@ static const struct file_operations lpfc_debugfs_ras_log = {
 	.read =         lpfc_debugfs_read,
 	.release =      lpfc_debugfs_ras_log_release,
 };
-#endif
 
 #undef lpfc_debugfs_op_dumpHBASlim
 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
@@ -5564,7 +5563,7 @@ static const struct file_operations lpfc_idiag_op_extAcc = {
 	.write =        lpfc_idiag_extacc_write,
 	.release =      lpfc_idiag_cmd_release,
 };
-
+#endif
 
 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
  * @phba: Pointer to HBA context object.
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4685745aa6ed..5a605773dd0a 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -5883,7 +5883,7 @@ void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
 			break;
 		default:
 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-					"1804 Invalid asynchrous event code: "
+					"1804 Invalid asynchronous event code: "
 					"x%x\n", bf_get(lpfc_trailer_code,
 					&cq_event->cqe.mcqe_cmpl));
 			break;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index e660ee98ad8b..64002b0cb02d 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -8564,7 +8564,7 @@ lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
 	psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
 	spin_unlock_irq(&phba->hbalock);
 
-	/* wake up worker thread to post asynchronlous mailbox command */
+	/* wake up worker thread to post asynchronous mailbox command */
 	lpfc_worker_wake_up(phba);
 }
 
@@ -8832,7 +8832,7 @@ lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
 		return rc;
 	}
 
-	/* Now, interrupt mode asynchrous mailbox command */
+	/* Now, interrupt mode asynchronous mailbox command */
 	rc = lpfc_mbox_cmd_check(phba, mboxq);
 	if (rc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
@@ -13121,11 +13121,11 @@ lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
 }
 
 /**
- * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
+ * lpfc_sli4_sp_handle_async_event - Handle an asynchronous event
  * @phba: Pointer to HBA context object.
  * @cqe: Pointer to mailbox completion queue entry.
  *
- * This routine process a mailbox completion queue entry with asynchrous
+ * This routine process a mailbox completion queue entry with asynchronous
  * event.
  *
  * Return: true if work posted to worker thread, otherwise false.
@@ -13279,7 +13279,7 @@ out_no_mqe_complete:
  * @cqe: Pointer to mailbox completion queue entry.
  *
  * This routine process a mailbox completion queue entry, it invokes the
- * proper mailbox complete handling or asynchrous event handling routine
+ * proper mailbox complete handling or asynchronous event handling routine
  * according to the MCQE's async bit.
  *
  * Return: true if work posted to worker thread, otherwise false.