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SubjectRe: [PATCH v3 2/2] PCI: Add tango PCIe host bridge support
Hi Marc,

[auto build test ERROR on v4.9-rc8]
[also build test ERROR on next-20170330]
[cannot apply to pci/next]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Marc-Gonzalez/Tango-PCIe-controller-support/20170330-154028
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm

All error/warnings (new ones prefixed by >>):

In file included from drivers/pci/host/pcie-tango.c:4:0:
>> include/linux/pci-ecam.h:29:19: error: field 'pci_ops' has incomplete type
struct pci_ops pci_ops;
^~~~~~~
>> include/linux/pci-ecam.h:57:39: warning: 'struct pci_bus' declared inside parameter list will not be visible outside of this definition or declaration
void __iomem *pci_ecam_map_bus(struct pci_bus *bus, unsigned int devfn,
^~~~~~~
>> drivers/pci/host/pcie-tango.c:198:39: warning: 'struct pci_bus' declared inside parameter list will not be visible outside of this definition or declaration
static int smp8759_config_read(struct pci_bus *bus,
^~~~~~~
drivers/pci/host/pcie-tango.c: In function 'smp8759_config_read':
>> drivers/pci/host/pcie-tango.c:202:37: error: dereferencing pointer to incomplete type 'struct pci_bus'
struct pci_config_window *cfg = bus->sysdata;
^~
>> drivers/pci/host/pcie-tango.c:211:10: error: 'PCIBIOS_FUNC_NOT_SUPPORTED' undeclared (first use in this function)
return PCIBIOS_FUNC_NOT_SUPPORTED; /* Error seems appropriate */
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c:211:10: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/pci/host/pcie-tango.c:219:15: error: 'PCI_BASE_ADDRESS_0' undeclared (first use in this function)
if (where == PCI_BASE_ADDRESS_0 && bus->number == 0) {
^~~~~~~~~~~~~~~~~~
>> drivers/pci/host/pcie-tango.c:221:10: error: 'PCIBIOS_SUCCESSFUL' undeclared (first use in this function)
return PCIBIOS_SUCCESSFUL; /* Should we return error or success? */
^~~~~~~~~~~~~~~~~~
>> drivers/pci/host/pcie-tango.c:233:8: error: implicit declaration of function 'pci_generic_config_read' [-Werror=implicit-function-declaration]
ret = pci_generic_config_read(bus, devfn, where, size, val);
^~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c: At top level:
drivers/pci/host/pcie-tango.c:239:40: warning: 'struct pci_bus' declared inside parameter list will not be visible outside of this definition or declaration
static int smp8759_config_write(struct pci_bus *bus,
^~~~~~~
drivers/pci/host/pcie-tango.c: In function 'smp8759_config_write':
drivers/pci/host/pcie-tango.c:243:37: error: dereferencing pointer to incomplete type 'struct pci_bus'
struct pci_config_window *cfg = bus->sysdata;
^~
>> drivers/pci/host/pcie-tango.c:247:8: error: implicit declaration of function 'pci_generic_config_write' [-Werror=implicit-function-declaration]
ret = pci_generic_config_write(bus, devfn, where, size, val);
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c: At top level:
>> drivers/pci/host/pcie-tango.c:256:3: error: field name not in record or union initializer
.map_bus = pci_ecam_map_bus,
^
drivers/pci/host/pcie-tango.c:256:3: note: (near initialization for 'smp8759_ecam_ops.pci_ops')
drivers/pci/host/pcie-tango.c:257:3: error: field name not in record or union initializer
.read = smp8759_config_read,
^
drivers/pci/host/pcie-tango.c:257:3: note: (near initialization for 'smp8759_ecam_ops.pci_ops')
drivers/pci/host/pcie-tango.c:258:3: error: field name not in record or union initializer
.write = smp8759_config_write,
^
drivers/pci/host/pcie-tango.c:258:3: note: (near initialization for 'smp8759_ecam_ops.pci_ops')
drivers/pci/host/pcie-tango.c: In function 'tango_fixup_class':
>> drivers/pci/host/pcie-tango.c:329:5: error: dereferencing pointer to incomplete type 'struct pci_dev'
dev->class = PCI_CLASS_BRIDGE_PCI << 8;
^~
>> drivers/pci/host/pcie-tango.c:329:15: error: 'PCI_CLASS_BRIDGE_PCI' undeclared (first use in this function)
dev->class = PCI_CLASS_BRIDGE_PCI << 8;
^~~~~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c: At top level:
>> drivers/pci/host/pcie-tango.c:320:22: error: expected declaration specifiers or '...' before numeric constant
#define VENDOR_SIGMA 0x1105
^
>> drivers/pci/host/pcie-tango.c:331:25: note: in expansion of macro 'VENDOR_SIGMA'
DECLARE_PCI_FIXUP_EARLY(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_class);
^~~~~~~~~~~~
In file included from include/linux/of.h:22:0,
from include/linux/irqdomain.h:34,
from drivers/pci/host/pcie-tango.c:3:
>> include/linux/mod_devicetable.h:16:20: error: expected declaration specifiers or '...' before '(' token
#define PCI_ANY_ID (~0)
^
>> drivers/pci/host/pcie-tango.c:331:39: note: in expansion of macro 'PCI_ANY_ID'
DECLARE_PCI_FIXUP_EARLY(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_class);
^~~~~~~~~~
>> drivers/pci/host/pcie-tango.c:331:51: error: expected declaration specifiers or '...' before 'tango_fixup_class'
DECLARE_PCI_FIXUP_EARLY(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_class);
^~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c: In function 'tango_fixup_bar':
>> drivers/pci/host/pcie-tango.c:342:9: error: implicit declaration of function 'pci_write_config_dword' [-Werror=implicit-function-declaration]
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0x80000000);
^~~~~~~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c:342:37: error: 'PCI_BASE_ADDRESS_0' undeclared (first use in this function)
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0x80000000);
^~~~~~~~~~~~~~~~~~
drivers/pci/host/pcie-tango.c: At top level:
>> drivers/pci/host/pcie-tango.c:320:22: error: expected declaration specifiers or '...' before numeric constant
#define VENDOR_SIGMA 0x1105
^
drivers/pci/host/pcie-tango.c:344:25: note: in expansion of macro 'VENDOR_SIGMA'
DECLARE_PCI_FIXUP_FINAL(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_bar);
^~~~~~~~~~~~
In file included from include/linux/of.h:22:0,
from include/linux/irqdomain.h:34,
from drivers/pci/host/pcie-tango.c:3:
>> include/linux/mod_devicetable.h:16:20: error: expected declaration specifiers or '...' before '(' token
#define PCI_ANY_ID (~0)
^
drivers/pci/host/pcie-tango.c:344:39: note: in expansion of macro 'PCI_ANY_ID'
DECLARE_PCI_FIXUP_FINAL(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_bar);
^~~~~~~~~~
--
In file included from drivers/pci//host/pcie-tango.c:4:0:
>> include/linux/pci-ecam.h:29:19: error: field 'pci_ops' has incomplete type
struct pci_ops pci_ops;
^~~~~~~
>> include/linux/pci-ecam.h:57:39: warning: 'struct pci_bus' declared inside parameter list will not be visible outside of this definition or declaration
void __iomem *pci_ecam_map_bus(struct pci_bus *bus, unsigned int devfn,
^~~~~~~
drivers/pci//host/pcie-tango.c:198:39: warning: 'struct pci_bus' declared inside parameter list will not be visible outside of this definition or declaration
static int smp8759_config_read(struct pci_bus *bus,
^~~~~~~
drivers/pci//host/pcie-tango.c: In function 'smp8759_config_read':
drivers/pci//host/pcie-tango.c:202:37: error: dereferencing pointer to incomplete type 'struct pci_bus'
struct pci_config_window *cfg = bus->sysdata;
^~
drivers/pci//host/pcie-tango.c:211:10: error: 'PCIBIOS_FUNC_NOT_SUPPORTED' undeclared (first use in this function)
return PCIBIOS_FUNC_NOT_SUPPORTED; /* Error seems appropriate */
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c:211:10: note: each undeclared identifier is reported only once for each function it appears in
drivers/pci//host/pcie-tango.c:219:15: error: 'PCI_BASE_ADDRESS_0' undeclared (first use in this function)
if (where == PCI_BASE_ADDRESS_0 && bus->number == 0) {
^~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c:221:10: error: 'PCIBIOS_SUCCESSFUL' undeclared (first use in this function)
return PCIBIOS_SUCCESSFUL; /* Should we return error or success? */
^~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c:233:8: error: implicit declaration of function 'pci_generic_config_read' [-Werror=implicit-function-declaration]
ret = pci_generic_config_read(bus, devfn, where, size, val);
^~~~~~~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c: At top level:
drivers/pci//host/pcie-tango.c:239:40: warning: 'struct pci_bus' declared inside parameter list will not be visible outside of this definition or declaration
static int smp8759_config_write(struct pci_bus *bus,
^~~~~~~
drivers/pci//host/pcie-tango.c: In function 'smp8759_config_write':
drivers/pci//host/pcie-tango.c:243:37: error: dereferencing pointer to incomplete type 'struct pci_bus'
struct pci_config_window *cfg = bus->sysdata;
^~
drivers/pci//host/pcie-tango.c:247:8: error: implicit declaration of function 'pci_generic_config_write' [-Werror=implicit-function-declaration]
ret = pci_generic_config_write(bus, devfn, where, size, val);
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c: At top level:
drivers/pci//host/pcie-tango.c:256:3: error: field name not in record or union initializer
.map_bus = pci_ecam_map_bus,
^
drivers/pci//host/pcie-tango.c:256:3: note: (near initialization for 'smp8759_ecam_ops.pci_ops')
drivers/pci//host/pcie-tango.c:257:3: error: field name not in record or union initializer
.read = smp8759_config_read,
^
drivers/pci//host/pcie-tango.c:257:3: note: (near initialization for 'smp8759_ecam_ops.pci_ops')
drivers/pci//host/pcie-tango.c:258:3: error: field name not in record or union initializer
.write = smp8759_config_write,
^
drivers/pci//host/pcie-tango.c:258:3: note: (near initialization for 'smp8759_ecam_ops.pci_ops')
drivers/pci//host/pcie-tango.c: In function 'tango_fixup_class':
drivers/pci//host/pcie-tango.c:329:5: error: dereferencing pointer to incomplete type 'struct pci_dev'
dev->class = PCI_CLASS_BRIDGE_PCI << 8;
^~
drivers/pci//host/pcie-tango.c:329:15: error: 'PCI_CLASS_BRIDGE_PCI' undeclared (first use in this function)
dev->class = PCI_CLASS_BRIDGE_PCI << 8;
^~~~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c: At top level:
drivers/pci//host/pcie-tango.c:320:22: error: expected declaration specifiers or '...' before numeric constant
#define VENDOR_SIGMA 0x1105
^
drivers/pci//host/pcie-tango.c:331:25: note: in expansion of macro 'VENDOR_SIGMA'
DECLARE_PCI_FIXUP_EARLY(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_class);
^~~~~~~~~~~~
In file included from include/linux/of.h:22:0,
from include/linux/irqdomain.h:34,
from drivers/pci//host/pcie-tango.c:3:
>> include/linux/mod_devicetable.h:16:20: error: expected declaration specifiers or '...' before '(' token
#define PCI_ANY_ID (~0)
^
drivers/pci//host/pcie-tango.c:331:39: note: in expansion of macro 'PCI_ANY_ID'
DECLARE_PCI_FIXUP_EARLY(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_class);
^~~~~~~~~~
drivers/pci//host/pcie-tango.c:331:51: error: expected declaration specifiers or '...' before 'tango_fixup_class'
DECLARE_PCI_FIXUP_EARLY(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_class);
^~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c: In function 'tango_fixup_bar':
drivers/pci//host/pcie-tango.c:342:9: error: implicit declaration of function 'pci_write_config_dword' [-Werror=implicit-function-declaration]
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0x80000000);
^~~~~~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c:342:37: error: 'PCI_BASE_ADDRESS_0' undeclared (first use in this function)
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0x80000000);
^~~~~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c: At top level:
drivers/pci//host/pcie-tango.c:320:22: error: expected declaration specifiers or '...' before numeric constant
#define VENDOR_SIGMA 0x1105
^
drivers/pci//host/pcie-tango.c:344:25: note: in expansion of macro 'VENDOR_SIGMA'
DECLARE_PCI_FIXUP_FINAL(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_bar);
^~~~~~~~~~~~
In file included from include/linux/of.h:22:0,
from include/linux/irqdomain.h:34,
from drivers/pci//host/pcie-tango.c:3:
>> include/linux/mod_devicetable.h:16:20: error: expected declaration specifiers or '...' before '(' token
#define PCI_ANY_ID (~0)
^
drivers/pci//host/pcie-tango.c:344:39: note: in expansion of macro 'PCI_ANY_ID'
DECLARE_PCI_FIXUP_FINAL(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_bar);
^~~~~~~~~~
drivers/pci//host/pcie-tango.c:344:51: error: expected declaration specifiers or '...' before 'tango_fixup_bar'
DECLARE_PCI_FIXUP_FINAL(VENDOR_SIGMA, PCI_ANY_ID, tango_fixup_bar);
^~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c:340:13: warning: 'tango_fixup_bar' defined but not used [-Wunused-function]
static void tango_fixup_bar(struct pci_dev *dev)
^~~~~~~~~~~~~~~
drivers/pci//host/pcie-tango.c:327:13: warning: 'tango_fixup_class' defined but not used [-Wunused-function]
static void tango_fixup_class(struct pci_dev *dev)
^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/pci_ops +29 include/linux/pci-ecam.h

35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 23 * struct to hold pci ops and bus shift of the config window
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 24 * for a PCI controller.
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 25 */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 26 struct pci_config_window;
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 27 struct pci_ecam_ops {
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 28 unsigned int bus_shift;
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 @29 struct pci_ops pci_ops;
5c3d14f7 include/linux/pci-ecam.h Jayachandran C 2016-06-10 30 int (*init)(struct pci_config_window *);
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 31 };
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 32
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 33 /*
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 34 * struct to hold the mappings of a config space window. This
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 35 * is expected to be used as sysdata for PCI controllers that
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 36 * use ECAM.
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 37 */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 38 struct pci_config_window {
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 39 struct resource res;
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 40 struct resource busr;
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 41 void *priv;
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 42 struct pci_ecam_ops *ops;
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 43 union {
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 44 void __iomem *win; /* 64-bit single mapping */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 45 void __iomem **winp; /* 32-bit per-bus mapping */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 46 };
5c3d14f7 include/linux/pci-ecam.h Jayachandran C 2016-06-10 47 struct device *parent;/* ECAM res was from this dev */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 48 };
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 49
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 50 /* create and free pci_config_window */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 51 struct pci_config_window *pci_ecam_create(struct device *dev,
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 52 struct resource *cfgres, struct resource *busr,
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 53 struct pci_ecam_ops *ops);
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 54 void pci_ecam_free(struct pci_config_window *cfg);
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 55
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 56 /* map_bus when ->sysdata is an instance of pci_config_window */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 @57 void __iomem *pci_ecam_map_bus(struct pci_bus *bus, unsigned int devfn,
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 58 int where);
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 59 /* default ECAM ops */
35ff9477 drivers/pci/ecam.h Jayachandran C 2016-05-10 60 extern struct pci_ecam_ops pci_generic_ecam_ops;

:::::: The code at line 29 was first introduced by commit
:::::: 35ff9477d880986441981010585399c1d7201fee PCI: Provide common functions for ECAM mapping

:::::: TO: Jayachandran C <jchandra@broadcom.com>
:::::: CC: Bjorn Helgaas <bhelgaas@google.com>

---
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