tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.hotplug head: 355d9c03df2c702f4fc346b94b8d3dfa5992aa65 commit: 295afd420469ed67ea4c5c4b3fdf1bba5331f33e [30/32] PCI: Use cpu_hotplug_disable() instead of get_online_cpus() config: x86_64-randconfig-x007-201715 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 295afd420469ed67ea4c5c4b3fdf1bba5331f33e # save the attached .config to linux build tree make ARCH=x86_64
All warnings (new ones prefixed by >>):
In file included from include/uapi/linux/stddef.h:1:0,
from include/linux/stddef.h:4,
from include/uapi/linux/posix_types.h:4,
from include/uapi/linux/types.h:13,
from include/linux/types.h:5,
from include/linux/mod_devicetable.h:11,
from include/linux/pci.h:20,
from drivers/pci/pci-driver.c:11:
drivers/pci/pci-driver.c: In function 'pci_call_probe':
drivers/pci/pci-driver.c:342:27: error: 'struct pci_dev' has no member named
'physfn'; did you mean 'is_physfn'?
if (dev->is_virtfn && dev->physfn->is_probed)
^
include/linux/compiler.h:160:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/pci/pci-driver.c:342:2: note: in expansion of macro 'if'
if (dev->is_virtfn && dev->physfn->is_probed)
^~
drivers/pci/pci-driver.c:342:27: error: 'struct pci_dev' has no member named
'physfn'; did you mean 'is_physfn'?
if (dev->is_virtfn && dev->physfn->is_probed)
^
include/linux/compiler.h:160:42: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/pci/pci-driver.c:342:2: note: in expansion of macro 'if'
if (dev->is_virtfn && dev->physfn->is_probed)
^~
drivers/pci/pci-driver.c:342:27: error: 'struct pci_dev' has no member named
'physfn'; did you mean 'is_physfn'?
if (dev->is_virtfn && dev->physfn->is_probed)
^
include/linux/compiler.h:171:16: note: in definition of macro '__trace_if'
______r = !!(cond); \
^~~~
>> drivers/pci/pci-driver.c:342:2: note: in expansion of macro 'if'
if (dev->is_virtfn && dev->physfn->is_probed)
^~
vim +/if +342 drivers/pci/pci-driver.c
326 int error, node, cpu;
327 struct drv_dev_and_id ddi = { drv, dev, id };
328
329 /*
330 * Execute driver initialization on node where the device is
331 * attached. This way the driver likely allocates its local
memory
332 * on the right node.
333 */
334 node = dev_to_node(&dev->dev);
335 dev->is_probed = 1;
336
337 cpu_hotplug_disable();
338 /*
339 * Prevent nesting work_on_cpu() for the case where a Virtual
Function
340 * device is probed from work_on_cpu() of the Physical device.
341 */
> 342 if (dev->is_virtfn && dev->physfn->is_probed)
343 cpu = nr_cpu_ids;
344 else
345 cpu = cpumask_any_and(cpumask_of_node(node),
cpu_online_mask);
346
347 if (cpu < nr_cpu_ids)
348 error = work_on_cpu(cpu, local_pci_probe, &ddi);
349 else
350 error = local_pci_probe(&ddi);
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