drivers/gpu/drm/drm_pci.c:82:19: note: in expansion of macro 'virt_to_page'

From: kbuild test robot
Date: Sat Feb 22 2020 - 16:47:37 EST

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Hi Christoph,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 54dedb5b571d2fb0d65c3957ecfa9b32ce28d7f0
commit: 6bd33e1ece528f67646db33bf97406b747dafda0 riscv: add nommu support
date: 3 months ago
config: riscv-randconfig-a001-20200223 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 6bd33e1ece528f67646db33bf97406b747dafda0
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=riscv

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

from include/linux/kobject.h:20,
from include/linux/device.h:16,
from include/linux/dma-mapping.h:7,
from drivers/gpu/drm/drm_pci.c:25:
include/linux/scatterlist.h: In function 'sg_set_buf':
include/asm-generic/memory_model.h:54:29: error: 'vmemmap' undeclared (first use in this function); did you mean 'vm_mmap'?
#define __pfn_to_page(pfn) (vmemmap + (pfn))
^
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
#define pfn_to_page __pfn_to_page
^~~~~~~~~~~~~
arch/riscv/include/asm/page.h:112:30: note: in expansion of macro 'pfn_to_page'
#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
^~~~~~~~~~~
include/linux/scatterlist.h:145:18: note: in expansion of macro 'virt_to_page'
sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
^~~~~~~~~~~~
In file included from arch/riscv/include/asm/page.h:12:0,
from arch/riscv/include/asm/thread_info.h:11,
from include/linux/thread_info.h:38,
from include/asm-generic/preempt.h:5,
from ./arch/riscv/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/radix-tree.h:14,
from include/linux/idr.h:15,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/device.h:16,
from include/linux/dma-mapping.h:7,
from drivers/gpu/drm/drm_pci.c:25:
include/linux/scatterlist.h: In function 'sg_phys':
include/asm-generic/memory_model.h:55:54: error: 'vmemmap' undeclared (first use in this function); did you mean 'vm_mmap'?
#define __page_to_pfn(page) (unsigned long)((page) - vmemmap)
^
include/linux/pfn.h:21:36: note: in definition of macro 'PFN_PHYS'
#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)
^
arch/riscv/include/asm/page.h:115:29: note: in expansion of macro 'pfn_to_phys'
#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page)))
^~~~~~~~~~~
include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn'
#define page_to_pfn __page_to_pfn
^~~~~~~~~~~~~
arch/riscv/include/asm/page.h:115:41: note: in expansion of macro 'page_to_pfn'
#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page)))
^~~~~~~~~~~
include/linux/scatterlist.h:224:9: note: in expansion of macro 'page_to_phys'
return page_to_phys(sg_page(sg)) + sg->offset;
^~~~~~~~~~~~
In file included from arch/riscv/include/asm/page.h:131:0,
from arch/riscv/include/asm/thread_info.h:11,
from include/linux/thread_info.h:38,
from include/asm-generic/preempt.h:5,
from ./arch/riscv/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/radix-tree.h:14,
from include/linux/idr.h:15,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/device.h:16,
from include/linux/dma-mapping.h:7,
from drivers/gpu/drm/drm_pci.c:25:
include/linux/scatterlist.h: In function 'sg_page_iter_page':
include/asm-generic/memory_model.h:54:29: error: 'vmemmap' undeclared (first use in this function); did you mean 'vm_mmap'?
#define __pfn_to_page(pfn) (vmemmap + (pfn))
^
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
#define pfn_to_page __pfn_to_page
^~~~~~~~~~~~~
include/linux/mm.h:213:26: note: in expansion of macro 'pfn_to_page'
#define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))
^~~~~~~~~~~
include/linux/scatterlist.h:384:9: note: in expansion of macro 'nth_page'
return nth_page(sg_page(piter->sg), piter->sg_pgoffset);
^~~~~~~~
include/linux/dma-mapping.h: In function 'dma_map_single_attrs':
include/asm-generic/memory_model.h:54:29: error: 'vmemmap' undeclared (first use in this function); did you mean 'vm_mmap'?
#define __pfn_to_page(pfn) (vmemmap + (pfn))
^
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
#define pfn_to_page __pfn_to_page
^~~~~~~~~~~~~
arch/riscv/include/asm/page.h:112:30: note: in expansion of macro 'pfn_to_page'
#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
^~~~~~~~~~~
include/linux/dma-mapping.h:587:33: note: in expansion of macro 'virt_to_page'
return dma_map_page_attrs(dev, virt_to_page(ptr), offset_in_page(ptr),
^~~~~~~~~~~~
drivers/gpu/drm/drm_pci.c: In function 'drm_pci_alloc':
include/asm-generic/memory_model.h:54:29: error: 'vmemmap' undeclared (first use in this function); did you mean 'vm_mmap'?
#define __pfn_to_page(pfn) (vmemmap + (pfn))
^
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
#define pfn_to_page __pfn_to_page
^~~~~~~~~~~~~
arch/riscv/include/asm/page.h:112:30: note: in expansion of macro 'pfn_to_page'
#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
^~~~~~~~~~~
>> drivers/gpu/drm/drm_pci.c:82:19: note: in expansion of macro 'virt_to_page'
SetPageReserved(virt_to_page((void *)addr));
^~~~~~~~~~~~
drivers/gpu/drm/drm_pci.c: In function '__drm_legacy_pci_free':
include/asm-generic/memory_model.h:54:29: error: 'vmemmap' undeclared (first use in this function); did you mean 'vm_mmap'?
#define __pfn_to_page(pfn) (vmemmap + (pfn))
^
include/asm-generic/memory_model.h:82:21: note: in expansion of macro '__pfn_to_page'
#define pfn_to_page __pfn_to_page
^~~~~~~~~~~~~
arch/riscv/include/asm/page.h:112:30: note: in expansion of macro 'pfn_to_page'
#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
^~~~~~~~~~~
drivers/gpu/drm/drm_pci.c:105:22: note: in expansion of macro 'virt_to_page'
ClearPageReserved(virt_to_page((void *)addr));
^~~~~~~~~~~~

vim +/virt_to_page +82 drivers/gpu/drm/drm_pci.c

^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 38
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 39 /**
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 40 * drm_pci_alloc - Allocate a PCI consistent memory block, for DMA.
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 41 * @dev: DRM device
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 42 * @size: size of block to allocate
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 43 * @align: alignment of block
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 44 *
23ef59ef6dcc9b6 drivers/gpu/drm/drm_pci.c Daniel Vetter 2017-03-08 45 * FIXME: This is a needless abstraction of the Linux dma-api and should be
23ef59ef6dcc9b6 drivers/gpu/drm/drm_pci.c Daniel Vetter 2017-03-08 46 * removed.
23ef59ef6dcc9b6 drivers/gpu/drm/drm_pci.c Daniel Vetter 2017-03-08 47 *
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 48 * Return: A handle to the allocated memory block on success or NULL on
c6a1af8a1621913 drivers/gpu/drm/drm_pci.c Thierry Reding 2014-05-19 49 * failure.
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 50 */
e6be8d9d17bd440 drivers/gpu/drm/drm_pci.c Zhenyu Wang 2010-01-05 51 drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align)
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 52 {
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 53 drm_dma_handle_t *dmah;
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 54 unsigned long addr;
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 55 size_t sz;
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 56
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 57 /* pci_alloc_consistent only guarantees alignment to the smallest
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 58 * PAGE_SIZE order which is greater than or equal to the requested size.
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 59 * Return NULL here for now to make sure nobody tries for larger alignment
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 60 */
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 61 if (align > size)
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 62 return NULL;
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 63
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 64 dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 65 if (!dmah)
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 66 return NULL;
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 67
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 68 dmah->size = size;
750afb08ca71310 drivers/gpu/drm/drm_pci.c Luis Chamberlain 2019-01-04 69 dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size,
750afb08ca71310 drivers/gpu/drm/drm_pci.c Luis Chamberlain 2019-01-04 70 &dmah->busaddr,
068f304781804e2 drivers/gpu/drm/drm_pci.c Souptick Joarder 2018-10-23 71 GFP_KERNEL | __GFP_COMP);
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 72
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 73 if (dmah->vaddr == NULL) {
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 74 kfree(dmah);
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 75 return NULL;
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 76 }
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 77
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 78 /* XXX - Is virt_to_page() legal for consistent mem? */
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 79 /* Reserve */
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 80 for (addr = (unsigned long)dmah->vaddr, sz = size;
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 81 sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
e1e78533f2ddeab drivers/gpu/drm/drm_pci.c Ben Hutchings 2013-10-27 @82 SetPageReserved(virt_to_page((void *)addr));
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 83 }
ddf19b973be5a96 drivers/char/drm/drm_pci.c Dave Airlie 2006-03-19 84
9c8da5ebbf6f872 drivers/char/drm/drm_pci.c Dave Airlie 2005-07-10 85 return dmah;
^1da177e4c3f415 drivers/char/drm/drm_pci.c Linus Torvalds 2005-04-16 86 }
b5e89ed53ed8d24 drivers/char/drm/drm_pci.c Dave Airlie 2005-09-25 87

:::::: The code at line 82 was first introduced by commit
:::::: e1e78533f2ddeabef5dc6545739211795ac4b822 drm: Pass pointers to virt_to_page()

:::::: TO: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
:::::: CC: Dave Airlie <airlied@xxxxxxxxxx>

---
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