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Commit ed02bfa4 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi 

Pull SCSI fixes from James Bottomley:
 "This is a set of ten fixes: 8 for UFS including four static checker
  warnings, a potential null deref in the voltage regulator code, a race
  on module unload, a ref counting fix on the well known LUNs which made
  it impossible to remove the ufs module and fix to correct the
  information in pwr_info.

  In addition to UFS, there's a blacklist for the Intel Multi-Flex array
  which chokes on report supported operation codes and a fix to an oops
  in bnx2fc caused by shared skbs"

[ For us non-SCSI people: "UFS" here is "Universal Flash Storage" not
  the filesystem.  - Linus ]

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  ufs: fix NULL dereference when no regulators are defined
  ufs: ensure clk gating work is finished before module unloading
  scsi: ufs: fix static checker warning in ufshcd_parse_clock_info
  scsi: ufs: fix static checker warning in __ufshcd_setup_clocks
  scsi: ufs: fix static checker warning in ufshcd_populate_vreg
  scsi: ufs: fix static checker errors in ufshcd_system_suspend
  ufs: fix power info after link start-up
  ufs: fix reference counting of W-LUs
  scsi: add Intel Multi-Flex to scsi scan blacklist
  bnx2fc: do not add shared skbs to the fcoe_rx_list
parents 88910638 3e660fbe

drivers/scsi/bnx2fc/bnx2fc_fcoe.c

+7 −0
Original line number Diff line number Diff line
@@ -412,6 +412,7 @@ static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev, 
	struct fc_frame_header *fh;

	struct fcoe_rcv_info *fr;

	struct fcoe_percpu_s *bg;

	struct sk_buff *tmp_skb;

	unsigned short oxid;



	interface = container_of(ptype, struct bnx2fc_interface,
@@ -424,6 +425,12 @@ static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev, 
		goto err;

	}



	tmp_skb = skb_share_check(skb, GFP_ATOMIC);

	if (!tmp_skb)

		goto err;



	skb = tmp_skb;



	if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {

		printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");

		goto err;

drivers/scsi/scsi_devinfo.c

+1 −0
Original line number Diff line number Diff line
@@ -202,6 +202,7 @@ static struct { 
	{"IOMEGA", "Io20S         *F", NULL, BLIST_KEY},

	{"INSITE", "Floptical   F*8I", NULL, BLIST_KEY},

	{"INSITE", "I325VM", NULL, BLIST_KEY},

	{"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},

	{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},

	{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},

	{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},

drivers/scsi/ufs/ufshcd-pltfrm.c

+5 −10
Original line number Diff line number Diff line
@@ -102,7 +102,6 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba) 
	clkfreq = devm_kzalloc(dev, sz * sizeof(*clkfreq),

			GFP_KERNEL);

	if (!clkfreq) {

		dev_err(dev, "%s: no memory\n", "freq-table-hz");

		ret = -ENOMEM;

		goto out;

	}
@@ -112,19 +111,19 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba) 
	if (ret && (ret != -EINVAL)) {

		dev_err(dev, "%s: error reading array %d\n",

				"freq-table-hz", ret);

		goto free_clkfreq;

		return ret;

	}



	for (i = 0; i < sz; i += 2) {

		ret = of_property_read_string_index(np,

				"clock-names", i/2, (const char **)&name);

		if (ret)

			goto free_clkfreq;

			goto out;



		clki = devm_kzalloc(dev, sizeof(*clki), GFP_KERNEL);

		if (!clki) {

			ret = -ENOMEM;

			goto free_clkfreq;

			goto out;

		}



		clki->min_freq = clkfreq[i];
@@ -134,8 +133,6 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba) 
				clki->min_freq, clki->max_freq, clki->name);

		list_add_tail(&clki->list, &hba->clk_list_head);

	}

free_clkfreq:

	kfree(clkfreq);

out:

	return ret;

}
@@ -162,10 +159,8 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name, 
	}



	vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL);

	if (!vreg) {

		dev_err(dev, "No memory for %s regulator\n", name);

		goto out;

	}

	if (!vreg)

		return -ENOMEM;



	vreg->name = kstrdup(name, GFP_KERNEL);

drivers/scsi/ufs/ufshcd.c

+64 −40
Original line number Diff line number Diff line
@@ -744,6 +744,8 @@ static void ufshcd_exit_clk_gating(struct ufs_hba *hba) 
	if (!ufshcd_is_clkgating_allowed(hba))

		return;

	device_remove_file(hba->dev, &hba->clk_gating.delay_attr);

	cancel_work_sync(&hba->clk_gating.ungate_work);

	cancel_delayed_work_sync(&hba->clk_gating.gate_work);

}



/* Must be called with host lock acquired */
@@ -2246,6 +2248,22 @@ static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) 
	return ret;

}



 /**

 * ufshcd_init_pwr_info - setting the POR (power on reset)

 * values in hba power info

 * @hba: per-adapter instance

 */

static void ufshcd_init_pwr_info(struct ufs_hba *hba)

{

	hba->pwr_info.gear_rx = UFS_PWM_G1;

	hba->pwr_info.gear_tx = UFS_PWM_G1;

	hba->pwr_info.lane_rx = 1;

	hba->pwr_info.lane_tx = 1;

	hba->pwr_info.pwr_rx = SLOWAUTO_MODE;

	hba->pwr_info.pwr_tx = SLOWAUTO_MODE;

	hba->pwr_info.hs_rate = 0;

}



/**

 * ufshcd_get_max_pwr_mode - reads the max power mode negotiated with device

 * @hba: per-adapter instance
@@ -2844,8 +2862,13 @@ static void ufshcd_slave_destroy(struct scsi_device *sdev) 
	hba = shost_priv(sdev->host);

	scsi_deactivate_tcq(sdev, hba->nutrs);

	/* Drop the reference as it won't be needed anymore */

	if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN)

	if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) {

		unsigned long flags;



		spin_lock_irqsave(hba->host->host_lock, flags);

		hba->sdev_ufs_device = NULL;

		spin_unlock_irqrestore(hba->host->host_lock, flags);

	}

}



/**
@@ -4062,6 +4085,8 @@ static void ufshcd_init_icc_levels(struct ufs_hba *hba) 
static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)

{

	int ret = 0;

	struct scsi_device *sdev_rpmb;

	struct scsi_device *sdev_boot;



	hba->sdev_ufs_device = __scsi_add_device(hba->host, 0, 0,

		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_UFS_DEVICE_WLUN), NULL);
@@ -4070,56 +4095,33 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba) 
		hba->sdev_ufs_device = NULL;

		goto out;

	}

	scsi_device_put(hba->sdev_ufs_device);



	hba->sdev_boot = __scsi_add_device(hba->host, 0, 0,

	sdev_boot = __scsi_add_device(hba->host, 0, 0,

		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_BOOT_WLUN), NULL);

	if (IS_ERR(hba->sdev_boot)) {

		ret = PTR_ERR(hba->sdev_boot);

		hba->sdev_boot = NULL;

	if (IS_ERR(sdev_boot)) {

		ret = PTR_ERR(sdev_boot);

		goto remove_sdev_ufs_device;

	}

	scsi_device_put(sdev_boot);



	hba->sdev_rpmb = __scsi_add_device(hba->host, 0, 0,

	sdev_rpmb = __scsi_add_device(hba->host, 0, 0,

		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_RPMB_WLUN), NULL);

	if (IS_ERR(hba->sdev_rpmb)) {

		ret = PTR_ERR(hba->sdev_rpmb);

		hba->sdev_rpmb = NULL;

	if (IS_ERR(sdev_rpmb)) {

		ret = PTR_ERR(sdev_rpmb);

		goto remove_sdev_boot;

	}

	scsi_device_put(sdev_rpmb);

	goto out;



remove_sdev_boot:

	scsi_remove_device(hba->sdev_boot);

	scsi_remove_device(sdev_boot);

remove_sdev_ufs_device:

	scsi_remove_device(hba->sdev_ufs_device);

out:

	return ret;

}



/**

 * ufshcd_scsi_remove_wlus - Removes the W-LUs which were added by

 *			     ufshcd_scsi_add_wlus()

 * @hba: per-adapter instance

 *

 */

static void ufshcd_scsi_remove_wlus(struct ufs_hba *hba)

{

	if (hba->sdev_ufs_device) {

		scsi_remove_device(hba->sdev_ufs_device);

		hba->sdev_ufs_device = NULL;

	}



	if (hba->sdev_boot) {

		scsi_remove_device(hba->sdev_boot);

		hba->sdev_boot = NULL;

	}



	if (hba->sdev_rpmb) {

		scsi_remove_device(hba->sdev_rpmb);

		hba->sdev_rpmb = NULL;

	}

}



/**

 * ufshcd_probe_hba - probe hba to detect device and initialize

 * @hba: per-adapter instance
@@ -4134,6 +4136,8 @@ static int ufshcd_probe_hba(struct ufs_hba *hba) 
	if (ret)

		goto out;



	ufshcd_init_pwr_info(hba);



	/* UniPro link is active now */

	ufshcd_set_link_active(hba);
@@ -4264,12 +4268,18 @@ static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, 
static inline int ufshcd_config_vreg_lpm(struct ufs_hba *hba,

					 struct ufs_vreg *vreg)

{

	if (!vreg)

		return 0;



	return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA);

}



static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,

					 struct ufs_vreg *vreg)

{

	if (!vreg)

		return 0;



	return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA);

}
@@ -4471,7 +4481,7 @@ static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on, 
			if (!IS_ERR_OR_NULL(clki->clk) && clki->enabled)

				clk_disable_unprepare(clki->clk);

		}

	} else if (!ret && on) {

	} else if (on) {

		spin_lock_irqsave(hba->host->host_lock, flags);

		hba->clk_gating.state = CLKS_ON;

		spin_unlock_irqrestore(hba->host->host_lock, flags);
@@ -4675,11 +4685,25 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, 
{

	unsigned char cmd[6] = { START_STOP };

	struct scsi_sense_hdr sshdr;

	struct scsi_device *sdp = hba->sdev_ufs_device;

	struct scsi_device *sdp;

	unsigned long flags;

	int ret;



	if (!sdp || !scsi_device_online(sdp))

		return -ENODEV;

	spin_lock_irqsave(hba->host->host_lock, flags);

	sdp = hba->sdev_ufs_device;

	if (sdp) {

		ret = scsi_device_get(sdp);

		if (!ret && !scsi_device_online(sdp)) {

			ret = -ENODEV;

			scsi_device_put(sdp);

		}

	} else {

		ret = -ENODEV;

	}

	spin_unlock_irqrestore(hba->host->host_lock, flags);



	if (ret)

		return ret;



	/*

	 * If scsi commands fail, the scsi mid-layer schedules scsi error-
@@ -4718,6 +4742,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, 
	if (!ret)

		hba->curr_dev_pwr_mode = pwr_mode;

out:

	scsi_device_put(sdp);

	hba->host->eh_noresume = 0;

	return ret;

}
@@ -5087,7 +5112,7 @@ int ufshcd_system_suspend(struct ufs_hba *hba) 
	int ret = 0;



	if (!hba || !hba->is_powered)

		goto out;

		return 0;



	if (pm_runtime_suspended(hba->dev)) {

		if (hba->rpm_lvl == hba->spm_lvl)
@@ -5231,7 +5256,6 @@ EXPORT_SYMBOL(ufshcd_shutdown); 
void ufshcd_remove(struct ufs_hba *hba)

{

	scsi_remove_host(hba->host);

	ufshcd_scsi_remove_wlus(hba);

	/* disable interrupts */

	ufshcd_disable_intr(hba, hba->intr_mask);

	ufshcd_hba_stop(hba);

drivers/scsi/ufs/ufshcd.h

+0 −2
Original line number Diff line number Diff line
@@ -392,8 +392,6 @@ struct ufs_hba { 
	 * "UFS device" W-LU.

	 */

	struct scsi_device *sdev_ufs_device;

	struct scsi_device *sdev_rpmb;

	struct scsi_device *sdev_boot;



	enum ufs_dev_pwr_mode curr_dev_pwr_mode;

	enum uic_link_state uic_link_state;