add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/scsi/stex.c
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@@ -1,16 +1,11 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * SuperTrak EX Series Storage Controller driver for Linux
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  *
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  *	Copyright (C) 2005-2015 Promise Technology Inc.
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  *
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- *	This program is free software; you can redistribute it and/or
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- *	modify it under the terms of the GNU General Public License
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- *	as published by the Free Software Foundation; either version
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- *	2 of the License, or (at your option) any later version.
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- *
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  *	Written By:
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  *		Ed Lin <promise_linux@promise.com>
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- *
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  */
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 #include <linux/init.h>
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@@ -114,7 +109,9 @@
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 	TASK_ATTRIBUTE_HEADOFQUEUE		= 0x1,
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 	TASK_ATTRIBUTE_ORDERED			= 0x2,
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 	TASK_ATTRIBUTE_ACA			= 0x4,
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+};
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+enum {
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 	SS_STS_NORMAL				= 0x80000000,
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 	SS_STS_DONE				= 0x40000000,
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 	SS_STS_HANDSHAKE			= 0x20000000,
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@@ -126,7 +123,9 @@
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 	SS_I2H_REQUEST_RESET			= 0x2000,
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 	SS_MU_OPERATIONAL			= 0x80000000,
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+};
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+enum {
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 	STEX_CDB_LENGTH				= 16,
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 	STATUS_VAR_LEN				= 128,
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@@ -241,7 +240,7 @@
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 	u8 data_dir;
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 	u8 payload_sz;		/* payload size in 4-byte, not used */
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 	u8 cdb[STEX_CDB_LENGTH];
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-	u32 variable[0];
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+	u32 variable[];
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 };
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 struct status_msg {
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@@ -673,16 +672,17 @@
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 		return 0;
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 	case PASSTHRU_CMD:
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 		if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
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-			struct st_drvver ver;
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+			const struct st_drvver ver = {
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+				.major = ST_VER_MAJOR,
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+				.minor = ST_VER_MINOR,
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+				.oem = ST_OEM,
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+				.build = ST_BUILD_VER,
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+				.signature[0] = PASSTHRU_SIGNATURE,
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+				.console_id = host->max_id - 1,
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+				.host_no = hba->host->host_no,
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+			};
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 			size_t cp_len = sizeof(ver);
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-			ver.major = ST_VER_MAJOR;
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-			ver.minor = ST_VER_MINOR;
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-			ver.oem = ST_OEM;
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-			ver.build = ST_BUILD_VER;
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-			ver.signature[0] = PASSTHRU_SIGNATURE;
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-			ver.console_id = host->max_id - 1;
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-			ver.host_no = hba->host->host_no;
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 			cp_len = scsi_sg_copy_from_buffer(cmd, &ver, cp_len);
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 			cmd->result = sizeof(ver) == cp_len ?
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 				DID_OK << 16 | COMMAND_COMPLETE << 8 :
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@@ -1489,6 +1489,7 @@
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 	.eh_abort_handler		= stex_abort,
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 	.eh_host_reset_handler		= stex_reset,
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 	.this_id			= -1,
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+	.dma_boundary			= PAGE_SIZE - 1,
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 };
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 static struct pci_device_id stex_pci_tbl[] = {
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@@ -1617,19 +1618,6 @@
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 	},
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 };
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-static int stex_set_dma_mask(struct pci_dev * pdev)
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-{
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-	int ret;
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-
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-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
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-		&& !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
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-		return 0;
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-	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
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-	if (!ret)
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-		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
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-	return ret;
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-}
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-
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 static int stex_request_irq(struct st_hba *hba)
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 {
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 	struct pci_dev *pdev = hba->pdev;
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@@ -1710,7 +1698,9 @@
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 		goto out_release_regions;
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 	}
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-	err = stex_set_dma_mask(pdev);
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+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
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+	if (err)
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+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
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 	if (err) {
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 		printk(KERN_ERR DRV_NAME "(%s): set dma mask failed\n",
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 			pci_name(pdev));