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, 21 insertions, 15 deletions

diff --git a/sound/soc/sof/intel/byt.c b/sound/soc/sof/intel/byt.c
index 2abf80b3eb52..92ef6a796fd5 100644
--- a/sound/soc/sof/intel/byt.c
+++ b/sound/soc/sof/intel/byt.c
@@ -24,7 +24,8 @@
 #define DRAM_OFFSET		0x100000
 #define DRAM_SIZE		(160 * 1024)
 #define SHIM_OFFSET		0x140000
-#define SHIM_SIZE		0x100
+#define SHIM_SIZE_BYT		0x100
+#define SHIM_SIZE_CHT		0x118
 #define MBOX_OFFSET		0x144000
 #define MBOX_SIZE		0x1000
 #define EXCEPT_OFFSET		0x800
@@ -75,7 +76,7 @@ static const struct snd_sof_debugfs_map byt_debugfs[] = {
 	 SOF_DEBUGFS_ACCESS_D0_ONLY},
 	{"dram", BYT_DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
 	 SOF_DEBUGFS_ACCESS_D0_ONLY},
-	{"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE,
+	{"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE_BYT,
 	 SOF_DEBUGFS_ACCESS_ALWAYS},
 };
 
@@ -102,7 +103,7 @@ static const struct snd_sof_debugfs_map cht_debugfs[] = {
 	 SOF_DEBUGFS_ACCESS_D0_ONLY},
 	{"dram", BYT_DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
 	 SOF_DEBUGFS_ACCESS_D0_ONLY},
-	{"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE,
+	{"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE_CHT,
 	 SOF_DEBUGFS_ACCESS_ALWAYS},
 };
 
@@ -145,33 +146,33 @@ static void byt_dump(struct snd_sof_dev *sdev, u32 flags)
 	struct sof_ipc_dsp_oops_xtensa xoops;
 	struct sof_ipc_panic_info panic_info;
 	u32 stack[BYT_STACK_DUMP_SIZE];
-	u32 status, panic, imrd, imrx;
+	u64 status, panic, imrd, imrx;
 
 	/* now try generic SOF status messages */
-	status = snd_sof_dsp_read(sdev, BYT_DSP_BAR, SHIM_IPCD);
-	panic = snd_sof_dsp_read(sdev, BYT_DSP_BAR, SHIM_IPCX);
+	status = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCD);
+	panic = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCX);
 	byt_get_registers(sdev, &xoops, &panic_info, stack,
 			  BYT_STACK_DUMP_SIZE);
 	snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack,
 			   BYT_STACK_DUMP_SIZE);
 
 	/* provide some context for firmware debug */
-	imrx = snd_sof_dsp_read(sdev, BYT_DSP_BAR, SHIM_IMRX);
-	imrd = snd_sof_dsp_read(sdev, BYT_DSP_BAR, SHIM_IMRD);
+	imrx = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IMRX);
+	imrd = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IMRD);
 	dev_err(sdev->dev,
-		"error: ipc host -> DSP: pending %s complete %s raw 0x%8.8x\n",
+		"error: ipc host -> DSP: pending %s complete %s raw 0x%llx\n",
 		(panic & SHIM_IPCX_BUSY) ? "yes" : "no",
 		(panic & SHIM_IPCX_DONE) ? "yes" : "no", panic);
 	dev_err(sdev->dev,
-		"error: mask host: pending %s complete %s raw 0x%8.8x\n",
+		"error: mask host: pending %s complete %s raw 0x%llx\n",
 		(imrx & SHIM_IMRX_BUSY) ? "yes" : "no",
 		(imrx & SHIM_IMRX_DONE) ? "yes" : "no", imrx);
 	dev_err(sdev->dev,
-		"error: ipc DSP -> host: pending %s complete %s raw 0x%8.8x\n",
+		"error: ipc DSP -> host: pending %s complete %s raw 0x%llx\n",
 		(status & SHIM_IPCD_BUSY) ? "yes" : "no",
 		(status & SHIM_IPCD_DONE) ? "yes" : "no", status);
 	dev_err(sdev->dev,
-		"error: mask DSP: pending %s complete %s raw 0x%8.8x\n",
+		"error: mask DSP: pending %s complete %s raw 0x%llx\n",
 		(imrd & SHIM_IMRD_BUSY) ? "yes" : "no",
 		(imrd & SHIM_IMRD_DONE) ? "yes" : "no", imrd);
 
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index 9a9a381a908d..432d12bd4937 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -50,8 +50,7 @@ int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 bar, u32 offset)
 
 	while (ext_hdr->hdr.cmd == SOF_IPC_FW_READY) {
 		/* read in ext structure */
-		offset += sizeof(*ext_hdr);
-		snd_sof_dsp_block_read(sdev, bar, offset,
+		snd_sof_dsp_block_read(sdev, bar, offset + sizeof(*ext_hdr),
 				   (void *)((u8 *)ext_data + sizeof(*ext_hdr)),
 				   ext_hdr->hdr.size - sizeof(*ext_hdr));
 
@@ -61,11 +60,15 @@ int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 bar, u32 offset)
 		/* process structure data */
 		switch (ext_hdr->type) {
 		case SOF_IPC_EXT_DMA_BUFFER:
+			ret = 0;
 			break;
 		case SOF_IPC_EXT_WINDOW:
 			ret = get_ext_windows(sdev, ext_hdr);
 			break;
 		default:
+			dev_warn(sdev->dev, "warning: unknown ext header type %d size 0x%x\n",
+				 ext_hdr->type, ext_hdr->hdr.size);
+			ret = 0;
 			break;
 		}
 
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index d82ab981e840..e20b806ec80f 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -3132,7 +3132,9 @@ found:
 	case SOF_DAI_INTEL_SSP:
 	case SOF_DAI_INTEL_DMIC:
 	case SOF_DAI_INTEL_ALH:
-		/* no resource needs to be released for SSP, DMIC and ALH */
+	case SOF_DAI_IMX_SAI:
+	case SOF_DAI_IMX_ESAI:
+		/* no resource needs to be released for all cases above */
 		break;
 	case SOF_DAI_INTEL_HDA:
 		ret = sof_link_hda_unload(sdev, link);