[PATCH v6 00/10] Remove pcim_iomap_regions_request_all()

[PATCH v6 00/10] Remove pcim_iomap_regions_request_all()

[Philipp Stanner]

Changes in v6:
  - Add Ilpo's RB to patch #1
  - Rephrase error log messages in patch #6. (Ilpo)

Changes in v5:
  - Add Acked-by's from Alexander and Bharat (the latter sent off-list,
    because of some issue with receiving the previous patch sets).

Changes in v4:
  - Add Acked-by's from Giovanni and Kalle.

Changes in v3:
  - Add missing full stops to commit messages (Andy).

Changes in v2:
  - Fix a bug in patch №4 ("crypto: marvell ...") where an error code
    was not set before printing it. (Me)
  - Apply Damien's Reviewed- / Acked-by to patches 1, 2 and 10. (Damien)
  - Apply Serge's Acked-by to patch №7. (Serge)
  - Apply Jiri's Reviewed-by to patch №8. (Jiri)
  - Apply Takashi Iwai's Reviewed-by to patch №9. (Takashi)


Hi all,

the PCI subsystem is currently working on cleaning up its devres API. To
do so, a few functions will be replaced with better alternatives.

This series removes pcim_iomap_regions_request_all(), which has been
deprecated already, and accordingly replaces the calls to
pcim_iomap_table() (which were only necessary because of
pcim_iomap_regions_request_all() in the first place) with calls to
pcim_iomap().

Would be great if you can take a look whether this behaves as you
intended for your respective component.

Cheers,
Philipp

Philipp Stanner (10):
  PCI: Make pcim_request_all_regions() a public function
  ata: ahci: Replace deprecated PCI functions
  crypto: qat - replace deprecated PCI functions
  crypto: marvell - replace deprecated PCI functions
  intel_th: pci: Replace deprecated PCI functions
  wifi: iwlwifi: replace deprecated PCI functions
  ntb: idt: Replace deprecated PCI functions
  serial: rp2: Replace deprecated PCI functions
  ALSA: korg1212: Replace deprecated PCI functions
  PCI: Remove pcim_iomap_regions_request_all()

 .../driver-api/driver-model/devres.rst        |  1 -
 drivers/ata/acard-ahci.c                      |  6 +-
 drivers/ata/ahci.c                            |  6 +-
 drivers/crypto/intel/qat/qat_420xx/adf_drv.c  | 11 +++-
 drivers/crypto/intel/qat/qat_4xxx/adf_drv.c   | 11 +++-
 .../marvell/octeontx2/otx2_cptpf_main.c       | 14 +++--
 .../marvell/octeontx2/otx2_cptvf_main.c       | 13 ++--
 drivers/hwtracing/intel_th/pci.c              |  9 ++-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   | 16 ++---
 drivers/ntb/hw/idt/ntb_hw_idt.c               | 13 ++--
 drivers/pci/devres.c                          | 59 +------------------
 drivers/tty/serial/rp2.c                      | 12 ++--
 include/linux/pci.h                           |  3 +-
 sound/pci/korg1212/korg1212.c                 |  6 +-
 14 files changed, 76 insertions(+), 104 deletions(-)

-- 
2.47.0

[PATCH v6 01/10] PCI: Make pcim_request_all_regions() a public function

[Philipp Stanner]

In order to remove the deprecated function
pcim_iomap_regions_request_all(), a few drivers need an interface to
request all BARs a PCI device offers.

Make pcim_request_all_regions() a public interface.

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/pci/devres.c | 3 ++-
 include/linux/pci.h  | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c
index b133967faef8..2a64da5c91fb 100644
--- a/drivers/pci/devres.c
+++ b/drivers/pci/devres.c
@@ -939,7 +939,7 @@ static void pcim_release_all_regions(struct pci_dev *pdev)
  * desired, release individual regions with pcim_release_region() or all of
  * them at once with pcim_release_all_regions().
  */
-static int pcim_request_all_regions(struct pci_dev *pdev, const char *name)
+int pcim_request_all_regions(struct pci_dev *pdev, const char *name)
 {
 	int ret;
 	int bar;
@@ -957,6 +957,7 @@ static int pcim_request_all_regions(struct pci_dev *pdev, const char *name)
 
 	return ret;
 }
+EXPORT_SYMBOL(pcim_request_all_regions);
 
 /**
  * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 573b4c4c2be6..3b151c8331e5 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2293,6 +2293,7 @@ static inline void pci_fixup_device(enum pci_fixup_pass pass,
 				    struct pci_dev *dev) { }
 #endif
 
+int pcim_request_all_regions(struct pci_dev *pdev, const char *name);
 void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
 void __iomem *pcim_iomap_region(struct pci_dev *pdev, int bar,
 				const char *name);
-- 
2.47.0

[PATCH v6 02/10] ata: ahci: Replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_regions_request_all() and pcim_iomap_table() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
---
 drivers/ata/acard-ahci.c | 6 ++++--
 drivers/ata/ahci.c       | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index 547f56341705..3999305b5356 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -370,7 +370,7 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
 	/* AHCI controllers often implement SFF compatible interface.
 	 * Grab all PCI BARs just in case.
 	 */
-	rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
+	rc = pcim_request_all_regions(pdev, DRV_NAME);
 	if (rc == -EBUSY)
 		pcim_pin_device(pdev);
 	if (rc)
@@ -386,7 +386,9 @@ static int acard_ahci_init_one(struct pci_dev *pdev, const struct pci_device_id
 	if (!(hpriv->flags & AHCI_HFLAG_NO_MSI))
 		pci_enable_msi(pdev);
 
-	hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
+	hpriv->mmio = pcim_iomap(pdev, AHCI_PCI_BAR, 0);
+	if (!hpriv->mmio)
+		return -ENOMEM;
 
 	/* save initial config */
 	ahci_save_initial_config(&pdev->dev, hpriv);
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 45f63b09828a..2043dfb52ae8 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1869,7 +1869,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* AHCI controllers often implement SFF compatible interface.
 	 * Grab all PCI BARs just in case.
 	 */
-	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
+	rc = pcim_request_all_regions(pdev, DRV_NAME);
 	if (rc == -EBUSY)
 		pcim_pin_device(pdev);
 	if (rc)
@@ -1893,7 +1893,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ahci_sb600_enable_64bit(pdev))
 		hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY;
 
-	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
+	hpriv->mmio = pcim_iomap(pdev, ahci_pci_bar, 0);
+	if (!hpriv->mmio)
+		return -ENOMEM;
 
 	/* detect remapped nvme devices */
 	ahci_remap_check(pdev, ahci_pci_bar, hpriv);
-- 
2.47.0

[PATCH v6 03/10] crypto: qat - replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
---
 drivers/crypto/intel/qat/qat_420xx/adf_drv.c | 11 ++++++++---
 drivers/crypto/intel/qat/qat_4xxx/adf_drv.c  | 11 ++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/intel/qat/qat_420xx/adf_drv.c b/drivers/crypto/intel/qat/qat_420xx/adf_drv.c
index f49818a13013..788a11cdb34b 100644
--- a/drivers/crypto/intel/qat/qat_420xx/adf_drv.c
+++ b/drivers/crypto/intel/qat/qat_420xx/adf_drv.c
@@ -129,16 +129,21 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Find and map all the device's BARS */
 	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM) & ADF_GEN4_BAR_MASK;
 
-	ret = pcim_iomap_regions_request_all(pdev, bar_mask, pci_name(pdev));
+	ret = pcim_request_all_regions(pdev, pci_name(pdev));
 	if (ret) {
-		dev_err(&pdev->dev, "Failed to map pci regions.\n");
+		dev_err(&pdev->dev, "Failed to request PCI regions.\n");
 		goto out_err;
 	}
 
 	i = 0;
 	for_each_set_bit(bar_nr, &bar_mask, PCI_STD_NUM_BARS) {
 		bar = &accel_pci_dev->pci_bars[i++];
-		bar->virt_addr = pcim_iomap_table(pdev)[bar_nr];
+		bar->virt_addr = pcim_iomap(pdev, bar_nr, 0);
+		if (!bar->virt_addr) {
+			dev_err(&pdev->dev, "Failed to ioremap PCI region.\n");
+			ret = -ENOMEM;
+			goto out_err;
+		}
 	}
 
 	pci_set_master(pdev);
diff --git a/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c b/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c
index 659905e45950..115eabfd1f6b 100644
--- a/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c
+++ b/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c
@@ -131,16 +131,21 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Find and map all the device's BARS */
 	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM) & ADF_GEN4_BAR_MASK;
 
-	ret = pcim_iomap_regions_request_all(pdev, bar_mask, pci_name(pdev));
+	ret = pcim_request_all_regions(pdev, pci_name(pdev));
 	if (ret) {
-		dev_err(&pdev->dev, "Failed to map pci regions.\n");
+		dev_err(&pdev->dev, "Failed to request PCI regions.\n");
 		goto out_err;
 	}
 
 	i = 0;
 	for_each_set_bit(bar_nr, &bar_mask, PCI_STD_NUM_BARS) {
 		bar = &accel_pci_dev->pci_bars[i++];
-		bar->virt_addr = pcim_iomap_table(pdev)[bar_nr];
+		bar->virt_addr = pcim_iomap(pdev, bar_nr, 0);
+		if (!bar->virt_addr) {
+			dev_err(&pdev->dev, "Failed to ioremap PCI region.\n");
+			ret = -ENOMEM;
+			goto out_err;
+		}
 	}
 
 	pci_set_master(pdev);
-- 
2.47.0

[PATCH v6 04/10] crypto: marvell - replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Acked-by: Bharat Bhushan <bbhushan2@marvell.com>
---
 drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c | 14 +++++++++-----
 drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c | 13 +++++++++----
 2 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
index 400e36d9908f..94d0e73e42de 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
@@ -739,18 +739,22 @@ static int otx2_cptpf_probe(struct pci_dev *pdev,
 		dev_err(dev, "Unable to get usable DMA configuration\n");
 		goto clear_drvdata;
 	}
-	/* Map PF's configuration registers */
-	err = pcim_iomap_regions_request_all(pdev, 1 << PCI_PF_REG_BAR_NUM,
-					     OTX2_CPT_DRV_NAME);
+	err = pcim_request_all_regions(pdev, OTX2_CPT_DRV_NAME);
 	if (err) {
-		dev_err(dev, "Couldn't get PCI resources 0x%x\n", err);
+		dev_err(dev, "Couldn't request PCI resources 0x%x\n", err);
 		goto clear_drvdata;
 	}
 	pci_set_master(pdev);
 	pci_set_drvdata(pdev, cptpf);
 	cptpf->pdev = pdev;
 
-	cptpf->reg_base = pcim_iomap_table(pdev)[PCI_PF_REG_BAR_NUM];
+	/* Map PF's configuration registers */
+	cptpf->reg_base = pcim_iomap(pdev, PCI_PF_REG_BAR_NUM, 0);
+	if (!cptpf->reg_base) {
+		err = -ENOMEM;
+		dev_err(dev, "Couldn't ioremap PCI resource 0x%x\n", err);
+		goto clear_drvdata;
+	}
 
 	/* Check if AF driver is up, otherwise defer probe */
 	err = cpt_is_pf_usable(cptpf);
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
index 527d34cc258b..d0b6ee901f62 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
@@ -358,9 +358,8 @@ static int otx2_cptvf_probe(struct pci_dev *pdev,
 		dev_err(dev, "Unable to get usable DMA configuration\n");
 		goto clear_drvdata;
 	}
-	/* Map VF's configuration registers */
-	ret = pcim_iomap_regions_request_all(pdev, 1 << PCI_PF_REG_BAR_NUM,
-					     OTX2_CPTVF_DRV_NAME);
+
+	ret = pcim_request_all_regions(pdev, OTX2_CPTVF_DRV_NAME);
 	if (ret) {
 		dev_err(dev, "Couldn't get PCI resources 0x%x\n", ret);
 		goto clear_drvdata;
@@ -369,7 +368,13 @@ static int otx2_cptvf_probe(struct pci_dev *pdev,
 	pci_set_drvdata(pdev, cptvf);
 	cptvf->pdev = pdev;
 
-	cptvf->reg_base = pcim_iomap_table(pdev)[PCI_PF_REG_BAR_NUM];
+	/* Map VF's configuration registers */
+	cptvf->reg_base = pcim_iomap(pdev, PCI_PF_REG_BAR_NUM, 0);
+	if (!cptvf->reg_base) {
+		ret = -ENOMEM;
+		dev_err(dev, "Couldn't ioremap PCI resource 0x%x\n", ret);
+		goto clear_drvdata;
+	}
 
 	otx2_cpt_set_hw_caps(pdev, &cptvf->cap_flag);
 
-- 
2.47.0

[PATCH v6 05/10] intel_th: pci: Replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
---
 drivers/hwtracing/intel_th/pci.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index 0d7b9839e5b6..e9d8d28e055f 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -23,7 +23,6 @@ enum {
 	TH_PCI_RTIT_BAR		= 4,
 };
 
-#define BAR_MASK (BIT(TH_PCI_CONFIG_BAR) | BIT(TH_PCI_STH_SW_BAR))
 
 #define PCI_REG_NPKDSC	0x80
 #define NPKDSC_TSACT	BIT(5)
@@ -83,10 +82,16 @@ static int intel_th_pci_probe(struct pci_dev *pdev,
 	if (err)
 		return err;
 
-	err = pcim_iomap_regions_request_all(pdev, BAR_MASK, DRIVER_NAME);
+	err = pcim_request_all_regions(pdev, DRIVER_NAME);
 	if (err)
 		return err;
 
+	if (!pcim_iomap(pdev, TH_PCI_CONFIG_BAR, 0))
+		return -ENOMEM;
+
+	if (!pcim_iomap(pdev, TH_PCI_STH_SW_BAR, 0))
+		return -ENOMEM;
+
 	if (pdev->resource[TH_PCI_RTIT_BAR].start) {
 		resource[TH_MMIO_RTIT] = pdev->resource[TH_PCI_RTIT_BAR];
 		r++;
-- 
2.47.0

[PATCH v6 06/10] wifi: iwlwifi: replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Acked-by: Kalle Valo <kvalo@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 3b9943eb6934..4839dcb199c4 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3533,7 +3533,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	struct iwl_trans_pcie *trans_pcie, **priv;
 	struct iwl_trans *trans;
 	int ret, addr_size;
-	void __iomem * const *table;
 	u32 bar0;
 
 	/* reassign our BAR 0 if invalid due to possible runtime PM races */
@@ -3659,22 +3658,15 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 		}
 	}
 
-	ret = pcim_iomap_regions_request_all(pdev, BIT(0), DRV_NAME);
+	ret = pcim_request_all_regions(pdev, DRV_NAME);
 	if (ret) {
-		dev_err(&pdev->dev, "pcim_iomap_regions_request_all failed\n");
+		dev_err(&pdev->dev, "Requesting all PCI BARs failed.\n");
 		goto out_no_pci;
 	}
 
-	table = pcim_iomap_table(pdev);
-	if (!table) {
-		dev_err(&pdev->dev, "pcim_iomap_table failed\n");
-		ret = -ENOMEM;
-		goto out_no_pci;
-	}
-
-	trans_pcie->hw_base = table[0];
+	trans_pcie->hw_base = pcim_iomap(pdev, 0, 0);
 	if (!trans_pcie->hw_base) {
-		dev_err(&pdev->dev, "couldn't find IO mem in first BAR\n");
+		dev_err(&pdev->dev, "Could not ioremap PCI BAR 0.\n");
 		ret = -ENODEV;
 		goto out_no_pci;
 	}
-- 
2.47.0

[PATCH v6 07/10] ntb: idt: Replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
---
 drivers/ntb/hw/idt/ntb_hw_idt.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c
index 6fc9dfe82474..544d8a4d2af5 100644
--- a/drivers/ntb/hw/idt/ntb_hw_idt.c
+++ b/drivers/ntb/hw/idt/ntb_hw_idt.c
@@ -2671,15 +2671,20 @@ static int idt_init_pci(struct idt_ntb_dev *ndev)
 	 */
 	pci_set_master(pdev);
 
-	/* Request all BARs resources and map BAR0 only */
-	ret = pcim_iomap_regions_request_all(pdev, 1, NTB_NAME);
+	/* Request all BARs resources */
+	ret = pcim_request_all_regions(pdev, NTB_NAME);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request resources\n");
 		goto err_clear_master;
 	}
 
-	/* Retrieve virtual address of BAR0 - PCI configuration space */
-	ndev->cfgspc = pcim_iomap_table(pdev)[0];
+	/* ioremap BAR0 - PCI configuration space */
+	ndev->cfgspc = pcim_iomap(pdev, 0, 0);
+	if (!ndev->cfgspc) {
+		dev_err(&pdev->dev, "Failed to ioremap BAR 0\n");
+		ret = -ENOMEM;
+		goto err_clear_master;
+	}
 
 	/* Put the IDT driver data pointer to the PCI-device private pointer */
 	pci_set_drvdata(pdev, ndev);
-- 
2.47.0

[PATCH v6 08/10] serial: rp2: Replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
---
 drivers/tty/serial/rp2.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/serial/rp2.c b/drivers/tty/serial/rp2.c
index 8bab2aedc499..6d99a02dd439 100644
--- a/drivers/tty/serial/rp2.c
+++ b/drivers/tty/serial/rp2.c
@@ -698,7 +698,6 @@ static int rp2_probe(struct pci_dev *pdev,
 	const struct firmware *fw;
 	struct rp2_card *card;
 	struct rp2_uart_port *ports;
-	void __iomem * const *bars;
 	int rc;
 
 	card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
@@ -711,13 +710,16 @@ static int rp2_probe(struct pci_dev *pdev,
 	if (rc)
 		return rc;
 
-	rc = pcim_iomap_regions_request_all(pdev, 0x03, DRV_NAME);
+	rc = pcim_request_all_regions(pdev, DRV_NAME);
 	if (rc)
 		return rc;
 
-	bars = pcim_iomap_table(pdev);
-	card->bar0 = bars[0];
-	card->bar1 = bars[1];
+	card->bar0 = pcim_iomap(pdev, 0, 0);
+	if (!card->bar0)
+		return -ENOMEM;
+	card->bar1 = pcim_iomap(pdev, 1, 0);
+	if (!card->bar1)
+		return -ENOMEM;
 	card->pdev = pdev;
 
 	rp2_decode_cap(id, &card->n_ports, &card->smpte);
-- 
2.47.0

[PATCH v6 09/10] ALSA: korg1212: Replace deprecated PCI functions

[Philipp Stanner]

pcim_iomap_table() and pcim_iomap_regions_request_all() have been
deprecated by the PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

Replace these functions with their successors, pcim_iomap() and
pcim_request_all_regions().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/korg1212/korg1212.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index e62fb1ad6d77..49b71082c485 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2108,7 +2108,7 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
         for (i=0; i<kAudioChannels; i++)
                 korg1212->volumePhase[i] = 0;
 
-	err = pcim_iomap_regions_request_all(pci, 1 << 0, "korg1212");
+	err = pcim_request_all_regions(pci, "korg1212");
 	if (err < 0)
 		return err;
 
@@ -2130,7 +2130,9 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
 		   korg1212->iomem2, iomem2_size,
 		   stateName[korg1212->cardState]);
 
-	korg1212->iobase = pcim_iomap_table(pci)[0];
+	korg1212->iobase = pcim_iomap(pci, 0, 0);
+	if (!korg1212->iobase)
+		return -ENOMEM;
 
 	err = devm_request_irq(&pci->dev, pci->irq, snd_korg1212_interrupt,
                           IRQF_SHARED,
-- 
2.47.0

[PATCH v6 10/10] PCI: Remove pcim_iomap_regions_request_all()

[Philipp Stanner]

pcim_iomap_regions_request_all() have been deprecated in
commit e354bb84a4c1 ("PCI: Deprecate pcim_iomap_table(),
pcim_iomap_regions_request_all()").

All users of this function have been ported to other interfaces by now.

Remove pcim_iomap_regions_request_all().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
---
 .../driver-api/driver-model/devres.rst        |  1 -
 drivers/pci/devres.c                          | 56 -------------------
 include/linux/pci.h                           |  2 -
 3 files changed, 59 deletions(-)

diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 5f2ee8d717b1..3a30cf4f6c0d 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -394,7 +394,6 @@ PCI
   pcim_enable_device()		: after success, some PCI ops become managed
   pcim_iomap()			: do iomap() on a single BAR
   pcim_iomap_regions()		: do request_region() and iomap() on multiple BARs
-  pcim_iomap_regions_request_all() : do request_region() on all and iomap() on multiple BARs
   pcim_iomap_table()		: array of mapped addresses indexed by BAR
   pcim_iounmap()		: do iounmap() on a single BAR
   pcim_iounmap_regions()	: do iounmap() and release_region() on multiple BARs
diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c
index 2a64da5c91fb..319a477a2135 100644
--- a/drivers/pci/devres.c
+++ b/drivers/pci/devres.c
@@ -959,62 +959,6 @@ int pcim_request_all_regions(struct pci_dev *pdev, const char *name)
 }
 EXPORT_SYMBOL(pcim_request_all_regions);
 
-/**
- * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
- *			(DEPRECATED)
- * @pdev: PCI device to map IO resources for
- * @mask: Mask of BARs to iomap
- * @name: Name associated with the requests
- *
- * Returns: 0 on success, negative error code on failure.
- *
- * Request all PCI BARs and iomap regions specified by @mask.
- *
- * To release these resources manually, call pcim_release_region() for the
- * regions and pcim_iounmap() for the mappings.
- *
- * This function is DEPRECATED. Don't use it in new code. Instead, use one
- * of the pcim_* region request functions in combination with a pcim_*
- * mapping function.
- */
-int pcim_iomap_regions_request_all(struct pci_dev *pdev, int mask,
-				   const char *name)
-{
-	int bar;
-	int ret;
-	void __iomem **legacy_iomap_table;
-
-	ret = pcim_request_all_regions(pdev, name);
-	if (ret != 0)
-		return ret;
-
-	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
-		if (!mask_contains_bar(mask, bar))
-			continue;
-		if (!pcim_iomap(pdev, bar, 0))
-			goto err;
-	}
-
-	return 0;
-
-err:
-	/*
-	 * If bar is larger than 0, then pcim_iomap() above has most likely
-	 * failed because of -EINVAL. If it is equal 0, most likely the table
-	 * couldn't be created, indicating -ENOMEM.
-	 */
-	ret = bar > 0 ? -EINVAL : -ENOMEM;
-	legacy_iomap_table = (void __iomem **)pcim_iomap_table(pdev);
-
-	while (--bar >= 0)
-		pcim_iounmap(pdev, legacy_iomap_table[bar]);
-
-	pcim_release_all_regions(pdev);
-
-	return ret;
-}
-EXPORT_SYMBOL(pcim_iomap_regions_request_all);
-
 /**
  * pcim_iounmap_regions - Unmap and release PCI BARs
  * @pdev: PCI device to map IO resources for
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 3b151c8331e5..b59197635c5c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2301,8 +2301,6 @@ void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
 void __iomem * const *pcim_iomap_table(struct pci_dev *pdev);
 int pcim_request_region(struct pci_dev *pdev, int bar, const char *name);
 int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name);
-int pcim_iomap_regions_request_all(struct pci_dev *pdev, int mask,
-				   const char *name);
 void pcim_iounmap_regions(struct pci_dev *pdev, int mask);
 void __iomem *pcim_iomap_range(struct pci_dev *pdev, int bar,
 				unsigned long offset, unsigned long len);
-- 
2.47.0

Re: [PATCH v6 00/10] Remove pcim_iomap_regions_request_all()

[Bjorn Helgaas]

On Wed, Oct 30, 2024 at 12:27:33PM +0100, Philipp Stanner wrote:
> Changes in v6:
>   - Add Ilpo's RB to patch #1
>   - Rephrase error log messages in patch #6. (Ilpo)
> 
> Changes in v5:
>   - Add Acked-by's from Alexander and Bharat (the latter sent off-list,
>     because of some issue with receiving the previous patch sets).
> 
> Changes in v4:
>   - Add Acked-by's from Giovanni and Kalle.
> 
> Changes in v3:
>   - Add missing full stops to commit messages (Andy).
> 
> Changes in v2:
>   - Fix a bug in patch №4 ("crypto: marvell ...") where an error code
>     was not set before printing it. (Me)
>   - Apply Damien's Reviewed- / Acked-by to patches 1, 2 and 10. (Damien)
>   - Apply Serge's Acked-by to patch №7. (Serge)
>   - Apply Jiri's Reviewed-by to patch №8. (Jiri)
>   - Apply Takashi Iwai's Reviewed-by to patch №9. (Takashi)
> 
> 
> Hi all,
> 
> the PCI subsystem is currently working on cleaning up its devres API. To
> do so, a few functions will be replaced with better alternatives.
> 
> This series removes pcim_iomap_regions_request_all(), which has been
> deprecated already, and accordingly replaces the calls to
> pcim_iomap_table() (which were only necessary because of
> pcim_iomap_regions_request_all() in the first place) with calls to
> pcim_iomap().
> 
> Would be great if you can take a look whether this behaves as you
> intended for your respective component.
> 
> Cheers,
> Philipp
> 
> Philipp Stanner (10):
>   PCI: Make pcim_request_all_regions() a public function
>   ata: ahci: Replace deprecated PCI functions
>   crypto: qat - replace deprecated PCI functions
>   crypto: marvell - replace deprecated PCI functions
>   intel_th: pci: Replace deprecated PCI functions
>   wifi: iwlwifi: replace deprecated PCI functions
>   ntb: idt: Replace deprecated PCI functions
>   serial: rp2: Replace deprecated PCI functions
>   ALSA: korg1212: Replace deprecated PCI functions
>   PCI: Remove pcim_iomap_regions_request_all()
> 
>  .../driver-api/driver-model/devres.rst        |  1 -
>  drivers/ata/acard-ahci.c                      |  6 +-
>  drivers/ata/ahci.c                            |  6 +-
>  drivers/crypto/intel/qat/qat_420xx/adf_drv.c  | 11 +++-
>  drivers/crypto/intel/qat/qat_4xxx/adf_drv.c   | 11 +++-
>  .../marvell/octeontx2/otx2_cptpf_main.c       | 14 +++--
>  .../marvell/octeontx2/otx2_cptvf_main.c       | 13 ++--
>  drivers/hwtracing/intel_th/pci.c              |  9 ++-
>  .../net/wireless/intel/iwlwifi/pcie/trans.c   | 16 ++---
>  drivers/ntb/hw/idt/ntb_hw_idt.c               | 13 ++--
>  drivers/pci/devres.c                          | 59 +------------------
>  drivers/tty/serial/rp2.c                      | 12 ++--
>  include/linux/pci.h                           |  3 +-
>  sound/pci/korg1212/korg1212.c                 |  6 +-
>  14 files changed, 76 insertions(+), 104 deletions(-)

Applied to pci/devm for v6.13, thanks!