[PATCH] dmaengine: amd: Replace deprecated PCI functions

[PATCH] dmaengine: amd: Replace deprecated PCI functions

[Philipp Stanner]

ae4dma and ptdma make use of pcim_iomap_table(), a deprecated,
problematic PCI function.

Both drivers currently request all IORESOURCE_MEM BARs, and ioremap only
a single bar.

Replace the deprecated function while keeping the aforementioned
behavior identical.

Signed-off-by: Philipp Stanner <phasta@kernel.org>
---
If it's deemed unnecessary to do the region requests, we could further
simplify the code.

Compiled, not tested.

P.
---
 drivers/dma/amd/ae4dma/ae4dma-pci.c | 17 +++++++++++------
 drivers/dma/amd/ptdma/ptdma-pci.c   | 27 ++++++++++++---------------
 2 files changed, 23 insertions(+), 21 deletions(-)

diff --git a/drivers/dma/amd/ae4dma/ae4dma-pci.c b/drivers/dma/amd/ae4dma/ae4dma-pci.c
index 2c63907db228..872011d4dd37 100644
--- a/drivers/dma/amd/ae4dma/ae4dma-pci.c
+++ b/drivers/dma/amd/ae4dma/ae4dma-pci.c
@@ -10,6 +10,8 @@
 
 #include "ae4dma.h"
 
+#define DRIVER_NAME "ae4dma"
+
 static int ae4_get_irqs(struct ae4_device *ae4)
 {
 	struct ae4_msix *ae4_msix = ae4->ae4_msix;
@@ -75,9 +77,10 @@ static int ae4_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct device *dev = &pdev->dev;
 	struct ae4_device *ae4;
+	unsigned long bar_mask
 	struct pt_device *pt;
-	int bar_mask;
 	int ret = 0;
+	int bar;
 
 	ae4 = devm_kzalloc(dev, sizeof(*ae4), GFP_KERNEL);
 	if (!ae4)
@@ -92,15 +95,17 @@ static int ae4_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto ae4_error;
 
 	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
-	ret = pcim_iomap_regions(pdev, bar_mask, "ae4dma");
-	if (ret)
-		goto ae4_error;
+	for_each_set_bit(bar, &bar_mask, sizeof(bar_mask)) {
+		ret = pcim_request_region(pdev, bar, DRIVER_NAME);
+		if (ret)
+			goto ae4_error;
+	}
 
 	pt = &ae4->pt;
 	pt->dev = dev;
 	pt->ver = AE4_DMA_VERSION;
 
-	pt->io_regs = pcim_iomap_table(pdev)[0];
+	pt->io_regs = pcim_iomap(pdev, 0, 0);
 	if (!pt->io_regs) {
 		ret = -ENOMEM;
 		goto ae4_error;
@@ -144,7 +149,7 @@ static const struct pci_device_id ae4_pci_table[] = {
 MODULE_DEVICE_TABLE(pci, ae4_pci_table);
 
 static struct pci_driver ae4_pci_driver = {
-	.name = "ae4dma",
+	.name = DRIVER_NAME,
 	.id_table = ae4_pci_table,
 	.probe = ae4_pci_probe,
 	.remove = ae4_pci_remove,
diff --git a/drivers/dma/amd/ptdma/ptdma-pci.c b/drivers/dma/amd/ptdma/ptdma-pci.c
index 22739ff0c3c5..d1c1c14b9292 100644
--- a/drivers/dma/amd/ptdma/ptdma-pci.c
+++ b/drivers/dma/amd/ptdma/ptdma-pci.c
@@ -23,6 +23,8 @@
 
 #include "ptdma.h"
 
+#define DRIVER_NAME ptdma
+
 struct pt_msix {
 	int msix_count;
 	struct msix_entry msix_entry;
@@ -123,9 +125,9 @@ static int pt_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	struct pt_device *pt;
 	struct pt_msix *pt_msix;
 	struct device *dev = &pdev->dev;
-	void __iomem * const *iomap_table;
-	int bar_mask;
+	unsigned long bar_mask;
 	int ret = -ENOMEM;
+	int bar;
 
 	pt = pt_alloc_struct(dev);
 	if (!pt)
@@ -150,20 +152,15 @@ static int pt_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
-	ret = pcim_iomap_regions(pdev, bar_mask, "ptdma");
-	if (ret) {
-		dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
-		goto e_err;
+	for_each_set_bit(bar, &bar_mask, sizeof(bar_mask)) {
+		ret = pcim_request_region(pdev, bar, DRIVER_NAME);
+		if (ret) {
+			dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
+			goto e_err;
+		}
 	}
 
-	iomap_table = pcim_iomap_table(pdev);
-	if (!iomap_table) {
-		dev_err(dev, "pcim_iomap_table failed\n");
-		ret = -ENOMEM;
-		goto e_err;
-	}
-
-	pt->io_regs = iomap_table[pt->dev_vdata->bar];
+	pt->io_regs = pcim_iomap(pdev, pt->dev_vdata->bar, 0);
 	if (!pt->io_regs) {
 		dev_err(dev, "ioremap failed\n");
 		ret = -ENOMEM;
@@ -230,7 +227,7 @@ static const struct pci_device_id pt_pci_table[] = {
 MODULE_DEVICE_TABLE(pci, pt_pci_table);
 
 static struct pci_driver pt_pci_driver = {
-	.name = "ptdma",
+	.name = DRIVER_NAME,
 	.id_table = pt_pci_table,
 	.probe = pt_pci_probe,
 	.remove = pt_pci_remove,
-- 
2.49.0

Re: [PATCH] dmaengine: amd: Replace deprecated PCI functions

[Philipp Stanner]

On Tue, 2026-02-03 at 13:32 +0100, Philipp Stanner wrote:
> ae4dma and ptdma make use of pcim_iomap_table(), a deprecated,
> problematic PCI function.
> 
> Both drivers currently request all IORESOURCE_MEM BARs, and ioremap only
> a single bar.
> 
> Replace the deprecated function while keeping the aforementioned
> behavior identical.
> 
> Signed-off-by: Philipp Stanner <phasta@kernel.org>
> ---
> If it's deemed unnecessary to do the region requests, we could further
> simplify the code.
> 
> Compiled, not tested.
> 
> P.
> ---
>  drivers/dma/amd/ae4dma/ae4dma-pci.c | 17 +++++++++++------
>  drivers/dma/amd/ptdma/ptdma-pci.c   | 27 ++++++++++++---------------
>  2 files changed, 23 insertions(+), 21 deletions(-)
> 
> diff --git a/drivers/dma/amd/ae4dma/ae4dma-pci.c b/drivers/dma/amd/ae4dma/ae4dma-pci.c
> index 2c63907db228..872011d4dd37 100644
> --- a/drivers/dma/amd/ae4dma/ae4dma-pci.c
> +++ b/drivers/dma/amd/ae4dma/ae4dma-pci.c
> @@ -10,6 +10,8 @@
>  
>  #include "ae4dma.h"
>  
> +#define DRIVER_NAME "ae4dma"
> +
>  static int ae4_get_irqs(struct ae4_device *ae4)
>  {
>  	struct ae4_msix *ae4_msix = ae4->ae4_msix;
> @@ -75,9 +77,10 @@ static int ae4_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  {
>  	struct device *dev = &pdev->dev;
>  	struct ae4_device *ae4;
> +	unsigned long bar_mask
>  	struct pt_device *pt;
> -	int bar_mask;
>  	int ret = 0;
> +	int bar;
>  
>  	ae4 = devm_kzalloc(dev, sizeof(*ae4), GFP_KERNEL);
>  	if (!ae4)
> @@ -92,15 +95,17 @@ static int ae4_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  		goto ae4_error;
>  
>  	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
> -	ret = pcim_iomap_regions(pdev, bar_mask, "ae4dma");
> -	if (ret)
> -		goto ae4_error;
> +	for_each_set_bit(bar, &bar_mask, sizeof(bar_mask)) {
> +		ret = pcim_request_region(pdev, bar, DRIVER_NAME);
> +		if (ret)
> +			goto ae4_error;
> +	}
>  
>  	pt = &ae4->pt;
>  	pt->dev = dev;
>  	pt->ver = AE4_DMA_VERSION;
>  
> -	pt->io_regs = pcim_iomap_table(pdev)[0];
> +	pt->io_regs = pcim_iomap(pdev, 0, 0);
>  	if (!pt->io_regs) {
>  		ret = -ENOMEM;
>  		goto ae4_error;
> @@ -144,7 +149,7 @@ static const struct pci_device_id ae4_pci_table[] = {
>  MODULE_DEVICE_TABLE(pci, ae4_pci_table);
>  
>  static struct pci_driver ae4_pci_driver = {
> -	.name = "ae4dma",
> +	.name = DRIVER_NAME,
>  	.id_table = ae4_pci_table,
>  	.probe = ae4_pci_probe,
>  	.remove = ae4_pci_remove,
> diff --git a/drivers/dma/amd/ptdma/ptdma-pci.c b/drivers/dma/amd/ptdma/ptdma-pci.c
> index 22739ff0c3c5..d1c1c14b9292 100644
> --- a/drivers/dma/amd/ptdma/ptdma-pci.c
> +++ b/drivers/dma/amd/ptdma/ptdma-pci.c
> @@ -23,6 +23,8 @@
>  
>  #include "ptdma.h"
>  
> +#define DRIVER_NAME ptdma

Oh, please ignore that patch – I hadn't checked the fix for this in
accidentally. Will provide v2…


Sorry,
P.

> +
>  struct pt_msix {
>  	int msix_count;
>  	struct msix_entry msix_entry;
> @@ -123,9 +125,9 @@ static int pt_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  	struct pt_device *pt;
>  	struct pt_msix *pt_msix;
>  	struct device *dev = &pdev->dev;
> -	void __iomem * const *iomap_table;
> -	int bar_mask;
> +	unsigned long bar_mask;
>  	int ret = -ENOMEM;
> +	int bar;
>  
>  	pt = pt_alloc_struct(dev);
>  	if (!pt)
> @@ -150,20 +152,15 @@ static int pt_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>  	}
>  
>  	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
> -	ret = pcim_iomap_regions(pdev, bar_mask, "ptdma");
> -	if (ret) {
> -		dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
> -		goto e_err;
> +	for_each_set_bit(bar, &bar_mask, sizeof(bar_mask)) {
> +		ret = pcim_request_region(pdev, bar, DRIVER_NAME);
> +		if (ret) {
> +			dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
> +			goto e_err;
> +		}
>  	}
>  
> -	iomap_table = pcim_iomap_table(pdev);
> -	if (!iomap_table) {
> -		dev_err(dev, "pcim_iomap_table failed\n");
> -		ret = -ENOMEM;
> -		goto e_err;
> -	}
> -
> -	pt->io_regs = iomap_table[pt->dev_vdata->bar];
> +	pt->io_regs = pcim_iomap(pdev, pt->dev_vdata->bar, 0);
>  	if (!pt->io_regs) {
>  		dev_err(dev, "ioremap failed\n");
>  		ret = -ENOMEM;
> @@ -230,7 +227,7 @@ static const struct pci_device_id pt_pci_table[] = {
>  MODULE_DEVICE_TABLE(pci, pt_pci_table);
>  
>  static struct pci_driver pt_pci_driver = {
> -	.name = "ptdma",
> +	.name = DRIVER_NAME,
>  	.id_table = pt_pci_table,
>  	.probe = pt_pci_probe,
>  	.remove = pt_pci_remove,

Re: [PATCH] dmaengine: amd: Replace deprecated PCI functions

[kernel test robot]

Hi Philipp,

kernel test robot noticed the following build errors:

[auto build test ERROR on vkoul-dmaengine/next]
[also build test ERROR on linus/master v6.19-rc8 next-20260202]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Philipp-Stanner/dmaengine-amd-Replace-deprecated-PCI-functions/20260203-204040
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
patch link:    https://lore.kernel.org/r/20260203123238.88598-2-phasta%40kernel.org
patch subject: [PATCH] dmaengine: amd: Replace deprecated PCI functions
config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20260203/202602032034.I97ysnlu-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260203/202602032034.I97ysnlu-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602032034.I97ysnlu-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/dma/amd/ptdma/ptdma-pci.c: In function 'pt_pci_probe':
>> drivers/dma/amd/ptdma/ptdma-pci.c:26:21: error: 'ptdma' undeclared (first use in this function)
      26 | #define DRIVER_NAME ptdma
         |                     ^~~~~
   drivers/dma/amd/ptdma/ptdma-pci.c:156:54: note: in expansion of macro 'DRIVER_NAME'
     156 |                 ret = pcim_request_region(pdev, bar, DRIVER_NAME);
         |                                                      ^~~~~~~~~~~
   drivers/dma/amd/ptdma/ptdma-pci.c:26:21: note: each undeclared identifier is reported only once for each function it appears in
      26 | #define DRIVER_NAME ptdma
         |                     ^~~~~
   drivers/dma/amd/ptdma/ptdma-pci.c:156:54: note: in expansion of macro 'DRIVER_NAME'
     156 |                 ret = pcim_request_region(pdev, bar, DRIVER_NAME);
         |                                                      ^~~~~~~~~~~
   drivers/dma/amd/ptdma/ptdma-pci.c: At top level:
>> drivers/dma/amd/ptdma/ptdma-pci.c:26:21: error: 'ptdma' undeclared here (not in a function)
      26 | #define DRIVER_NAME ptdma
         |                     ^~~~~
   drivers/dma/amd/ptdma/ptdma-pci.c:230:17: note: in expansion of macro 'DRIVER_NAME'
     230 |         .name = DRIVER_NAME,
         |                 ^~~~~~~~~~~


vim +/ptdma +26 drivers/dma/amd/ptdma/ptdma-pci.c

    25	
  > 26	#define DRIVER_NAME ptdma
    27	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [PATCH] dmaengine: amd: Replace deprecated PCI functions

[kernel test robot]

Hi Philipp,

kernel test robot noticed the following build errors:

[auto build test ERROR on vkoul-dmaengine/next]
[also build test ERROR on linus/master v6.19-rc8 next-20260202]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Philipp-Stanner/dmaengine-amd-Replace-deprecated-PCI-functions/20260203-204040
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
patch link:    https://lore.kernel.org/r/20260203123238.88598-2-phasta%40kernel.org
patch subject: [PATCH] dmaengine: amd: Replace deprecated PCI functions
config: um-allmodconfig (https://download.01.org/0day-ci/archive/20260204/202602040405.NuKnq4rr-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260204/202602040405.NuKnq4rr-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602040405.NuKnq4rr-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/dma/amd/ae4dma/ae4dma-pci.c:11:
   In file included from drivers/dma/amd/ae4dma/ae4dma.h:14:
   In file included from include/linux/dmaengine.h:12:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/um/include/asm/io.h:24:
   include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
    1209 |         return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
         |                                                   ~~~~~~~~~~ ^
>> drivers/dma/amd/ae4dma/ae4dma-pci.c:80:24: error: expected ';' at end of declaration
      80 |         unsigned long bar_mask
         |                               ^
         |                               ;
   1 warning and 1 error generated.


vim +80 drivers/dma/amd/ae4dma/ae4dma-pci.c

    75	
    76	static int ae4_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
    77	{
    78		struct device *dev = &pdev->dev;
    79		struct ae4_device *ae4;
  > 80		unsigned long bar_mask
    81		struct pt_device *pt;
    82		int ret = 0;
    83		int bar;
    84	
    85		ae4 = devm_kzalloc(dev, sizeof(*ae4), GFP_KERNEL);
    86		if (!ae4)
    87			return -ENOMEM;
    88	
    89		ae4->ae4_msix = devm_kzalloc(dev, sizeof(struct ae4_msix), GFP_KERNEL);
    90		if (!ae4->ae4_msix)
    91			return -ENOMEM;
    92	
    93		ret = pcim_enable_device(pdev);
    94		if (ret)
    95			goto ae4_error;
    96	
    97		bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
    98		for_each_set_bit(bar, &bar_mask, sizeof(bar_mask)) {
    99			ret = pcim_request_region(pdev, bar, DRIVER_NAME);
   100			if (ret)
   101				goto ae4_error;
   102		}
   103	
   104		pt = &ae4->pt;
   105		pt->dev = dev;
   106		pt->ver = AE4_DMA_VERSION;
   107	
   108		pt->io_regs = pcim_iomap(pdev, 0, 0);
   109		if (!pt->io_regs) {
   110			ret = -ENOMEM;
   111			goto ae4_error;
   112		}
   113	
   114		ret = ae4_get_irqs(ae4);
   115		if (ret < 0)
   116			goto ae4_error;
   117	
   118		pci_set_master(pdev);
   119	
   120		dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
   121	
   122		dev_set_drvdata(dev, ae4);
   123	
   124		ret = ae4_core_init(ae4);
   125		if (ret)
   126			goto ae4_error;
   127	
   128		return 0;
   129	
   130	ae4_error:
   131		ae4_deinit(ae4);
   132	
   133		return ret;
   134	}
   135	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [PATCH] dmaengine: amd: Replace deprecated PCI functions

[kernel test robot]

Hi Philipp,

kernel test robot noticed the following build errors:

[auto build test ERROR on vkoul-dmaengine/next]
[also build test ERROR on linus/master v6.19-rc8 next-20260202]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Philipp-Stanner/dmaengine-amd-Replace-deprecated-PCI-functions/20260203-204040
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next
patch link:    https://lore.kernel.org/r/20260203123238.88598-2-phasta%40kernel.org
patch subject: [PATCH] dmaengine: amd: Replace deprecated PCI functions
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260204/202602040433.65nFJ1K1-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260204/202602040433.65nFJ1K1-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602040433.65nFJ1K1-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/dma/amd/ptdma/ptdma-pci.c:156:40: error: use of undeclared identifier 'ptdma'
     156 |                 ret = pcim_request_region(pdev, bar, DRIVER_NAME);
         |                                                      ^
   drivers/dma/amd/ptdma/ptdma-pci.c:26:21: note: expanded from macro 'DRIVER_NAME'
      26 | #define DRIVER_NAME ptdma
         |                     ^
   drivers/dma/amd/ptdma/ptdma-pci.c:230:10: error: use of undeclared identifier 'ptdma'
     230 |         .name = DRIVER_NAME,
         |                 ^
   drivers/dma/amd/ptdma/ptdma-pci.c:26:21: note: expanded from macro 'DRIVER_NAME'
      26 | #define DRIVER_NAME ptdma
         |                     ^
   2 errors generated.


vim +/ptdma +156 drivers/dma/amd/ptdma/ptdma-pci.c

   122	
   123	static int pt_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
   124	{
   125		struct pt_device *pt;
   126		struct pt_msix *pt_msix;
   127		struct device *dev = &pdev->dev;
   128		unsigned long bar_mask;
   129		int ret = -ENOMEM;
   130		int bar;
   131	
   132		pt = pt_alloc_struct(dev);
   133		if (!pt)
   134			goto e_err;
   135	
   136		pt_msix = devm_kzalloc(dev, sizeof(*pt_msix), GFP_KERNEL);
   137		if (!pt_msix)
   138			goto e_err;
   139	
   140		pt->pt_msix = pt_msix;
   141		pt->dev_vdata = (struct pt_dev_vdata *)id->driver_data;
   142		if (!pt->dev_vdata) {
   143			ret = -ENODEV;
   144			dev_err(dev, "missing driver data\n");
   145			goto e_err;
   146		}
   147	
   148		ret = pcim_enable_device(pdev);
   149		if (ret) {
   150			dev_err(dev, "pcim_enable_device failed (%d)\n", ret);
   151			goto e_err;
   152		}
   153	
   154		bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
   155		for_each_set_bit(bar, &bar_mask, sizeof(bar_mask)) {
 > 156			ret = pcim_request_region(pdev, bar, DRIVER_NAME);
   157			if (ret) {
   158				dev_err(dev, "pcim_iomap_regions failed (%d)\n", ret);
   159				goto e_err;
   160			}
   161		}
   162	
   163		pt->io_regs = pcim_iomap(pdev, pt->dev_vdata->bar, 0);
   164		if (!pt->io_regs) {
   165			dev_err(dev, "ioremap failed\n");
   166			ret = -ENOMEM;
   167			goto e_err;
   168		}
   169	
   170		ret = pt_get_irqs(pt);
   171		if (ret)
   172			goto e_err;
   173	
   174		pci_set_master(pdev);
   175	
   176		ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
   177		if (ret) {
   178			ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
   179			if (ret) {
   180				dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n",
   181					ret);
   182				goto e_err;
   183			}
   184		}
   185	
   186		dev_set_drvdata(dev, pt);
   187	
   188		if (pt->dev_vdata)
   189			ret = pt_core_init(pt);
   190	
   191		if (ret)
   192			goto e_err;
   193	
   194		return 0;
   195	
   196	e_err:
   197		dev_err(dev, "initialization failed ret = %d\n", ret);
   198	
   199		return ret;
   200	}
   201	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki