| Age | Commit message (Collapse) | Author | Files | Lines |
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- Use devm_add_action_or_reset() helper (Fuqian Huang)
- Mark expected switch fall-through (Gustavo A. R. Silva)
- Convert sysfs device attributes from __ATTR() to DEVICE_ATTR() (Kelsey
Skunberg)
- Convert sysfs file permissions from S_IRUSR etc to octal (Kelsey
Skunberg)
- Move SR-IOV sysfs functions to iov.c (Kelsey Skunberg)
- Add pci_info_ratelimited() to ratelimit PCI messages separately
(Krzysztof Wilczynski)
- Fix "'static' not at beginning of declaration" warnings (Krzysztof
Wilczynski)
- Clean up resource_alignment parameter to not require static buffer
(Logan Gunthorpe)
- Add ACS quirk for iProc PAXB (Abhinav Ratna)
- Add pci_irq_vector() and other stubs for !CONFIG_PCI (Herbert Xu)
* pci/misc:
PCI: Add pci_irq_vector() and other stubs when !CONFIG_PCI
PCI: Add ACS quirk for iProc PAXB
PCI: Force trailing new line to resource_alignment_param in sysfs
PCI: Move pci_[get|set]_resource_alignment_param() into their callers
PCI: Clean up resource_alignment parameter to not require static buffer
PCI: Use static const struct, not const static struct
PCI: Add pci_info_ratelimited() to ratelimit PCI separately
PCI/IOV: Remove group write permission from sriov_numvfs, sriov_drivers_autoprobe
PCI/IOV: Move sysfs SR-IOV functions to iov.c
PCI: sysfs: Change permissions from symbolic to octal
PCI: sysfs: Change DEVICE_ATTR() to DEVICE_ATTR_WO()
PCI: sysfs: Define device attributes with DEVICE_ATTR*()
PCI: Mark expected switch fall-through
PCI: Use devm_add_action_or_reset()
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- Consolidate _HPP & _HPX code in pci-acpi.h and remove unnecessary
struct hotplug_program_ops (Krzysztof Wilczynski)
- Fixup PCIe device types to remove the need for dev->has_secondary_link
(Mika Westerberg)
* pci/enumeration:
PCI: Get rid of dev->has_secondary_link flag
PCI: Make pcie_downstream_port() available outside of access.c
PCI/ACPI: Remove unnecessary struct hotplug_program_ops
PCI/ACPI: Move _HPP & _HPX functions to pci-acpi.c
PCI/ACPI: Rename _HPX structs from hpp_* to hpx_*
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- Move many symbols from public linux/pci.h to subsystem-private
drivers/pci/pci.h (Kelsey Skunberg)
- Unexport pci_bus_get() and pci_bus_sem since they're not needed by
modules (Kelsey Skunberg)
- Remove unused pci_block_cfg_access() et al (Kelsey Skunberg)
* pci/encapsulate:
PCI: Make pci_set_of_node(), etc private
PCI: Make pci_enable_ptm() private
PCI: Make pcie_set_ecrc_checking(), pcie_ecrc_get_policy() private
PCI: Make pci_ats_init() private
PCI: Make pcie_update_link_speed() private
PCI: Make pci_bus_get(), pci_bus_put() private
PCI: Make pci_hotplug_io_size, mem_size, and bus_size private
PCI: Make pci_save_vc_state(), pci_restore_vc_state(), etc private
PCI: Make pci_get_host_bridge_device(), pci_put_host_bridge_device() private
PCI: Make pci_check_pme_status(), pci_pme_wakeup_bus() private
PCI: Make PCI_PM_* delay times private
PCI: Unexport pci_bus_sem
PCI: Unexport pci_bus_get() and pci_bus_put()
PCI: Remove pci_block_cfg_access() et al (unused)
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In some systems, the Device/Port Type in the PCI Express Capabilities
register incorrectly identifies upstream ports as downstream ports.
d0751b98dfa3 ("PCI: Add dev->has_secondary_link to track downstream PCIe
links") addressed this by adding pci_dev.has_secondary_link, which is set
for downstream ports. But this is confusing because pci_pcie_type()
sometimes gives the wrong answer, and it's not obvious that we should use
pci_dev.has_secondary_link instead.
Reduce the confusion by correcting the type of the port itself so that
pci_pcie_type() returns the actual type regardless of what the Device/Port
Type register claims it is. Update the users to call pci_pcie_type() and
pcie_downstream_port() accordingly, and remove pci_dev.has_secondary_link
completely.
Link: https://lore.kernel.org/linux-pci/20190703133953.GK128603@google.com/
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20190822085553.62697-2-mika.westerberg@linux.intel.com
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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pcie_downstream_port() is useful in other places where code needs to
determine whether the PCIe port is downstream so make it available outside
of access.c.
Link: https://lore.kernel.org/r/20190822085553.62697-1-mika.westerberg@linux.intel.com
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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iProc PAXB Root Ports don't advertise an ACS capability, but they do not
allow peer-to-peer transactions between Root Ports. Add an ACS quirk so
each Root Port can be in a separate IOMMU group.
[bhelgaas: commit log, comment, use common implementation style]
Link: https://lore.kernel.org/r/1566275985-25670-1-git-send-email-srinath.mannam@broadcom.com
Signed-off-by: Abhinav Ratna <abhinav.ratna@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Scott Branden <scott.branden@broadcom.com>
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When 'pci=resource_alignment=' is specified on the command line, there is
no trailing new line. Then, when it's read through the corresponding sysfs
attribute, there will be no newline and a cat command will not show
correctly in a shell. If the parameter is set through sysfs a new line will
be stored and it will 'cat' correctly.
To solve this, append a new line character in the show function if one does
not already exist.
Link: https://lore.kernel.org/r/20190822161013.5481-4-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Both the functions pci_get_resource_alignment_param() and
pci_set_resource_alignment_param() are now only called in one place:
resource_alignment_show() and resource_alignment_store() respectively.
There is no value in this extra set of functions so move both into their
callers respectively.
[bhelgaas: fold in "GFP_KERNEL while atomic" fix from Christoph Hellwig
<hch@infradead.org>
https://lore.kernel.org/r/20190902075006.GB754@infradead.org]
Link: https://lore.kernel.org/r/20190822161013.5481-3-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Clean up the 'resource_alignment' parameter code to use kstrdup() in the
initcall routine instead of a static buffer that wastes memory regardless
of whether the feature is used. This allows us to drop 'COMMAND_LINE_SIZE'
bytes (typically 256-4096 depending on architecture) of static data.
This is similar to what has been done for the 'disable_acs_redir'
parameter.
Link: https://lore.kernel.org/r/20190822161013.5481-2-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Move the static keyword to the front of declarations of pci_regs_behavior[]
and pcie_cap_regs_behavior[], which resolves compiler warnings when
building with "W=1":
drivers/pci/pci-bridge-emul.c:41:1: warning: ‘static’ is not at beginning of
declaration [-Wold-style-declaration]
const static struct pci_bridge_reg_behavior pci_regs_behavior[] = {
^
drivers/pci/pci-bridge-emul.c:176:1: warning: ‘static’ is not at beginning of
declaration [-Wold-style-declaration]
const static struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = {
^
Link: https://lore.kernel.org/r/20190826151436.4672-1-kw@linux.com
Link: https://lore.kernel.org/r/20190828131733.5817-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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Do not use printk_ratelimit() in drivers/pci/pci.c as it shares the rate
limiting state with all other callers to the printk_ratelimit().
Add pci_info_ratelimited() (similar to pci_notice_ratelimited() added in
the commit a88a7b3eb076 ("vfio: Use dev_printk() when possible")) and use
it instead of printk_ratelimit() + pci_info().
Link: https://lore.kernel.org/r/20190825224616.8021-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Previously the sriov_numvfs and sriov_drivers_autoprobe sysfs files had
0664 permissions, which allowed group write. libvirt runs as root when
dealing with PCI, and it chowns files needed by qemu, so group write
permission should not be needed.
Change these permissions from 0664 to 0644, which is what DEVICE_ATTR_RW()
does by default.
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20190905063226.43269-1-skunberg.kelsey@gmail.com
Link: https://lore.kernel.org/r/850cf536-0b72-d78c-efaf-855dcb391087@redhat.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Donald Dutile <ddutile@redhat.com>
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Move the ACPI-specific structs hpx_type0, hpx_type1, hpx_type2 and
hpx_type3 to drivers/pci/pci-acpi.c as they are not used anywhere else.
Then remove the struct hotplug_program_ops that has been shared between
drivers/pci/probe.c and drivers/pci/pci-acpi.c from drivers/pci/pci.h as it
is no longer needed.
The struct hotplug_program_ops was added by 87fcf12e846a ("PCI/ACPI: Remove
the need for 'struct hotplug_params'") and replaced previously used struct
hotplug_params enabling the support for the _HPX Type 3 Setting Record that
was added by f873c51a155a ("PCI/ACPI: Implement _HPX Type 3 Setting
Record").
The new struct allowed for the static functions such program_hpx_type0(),
program_hpx_type1(), etc., from the drivers/pci/probe.c to be called from
the function pci_acpi_program_hp_params() in the drivers/pci/pci-acpi.c.
Previously a programming of _HPX Type 0 was as follows:
drivers/pci/probe.c:
program_hpx_type0()
...
pci_configure_device()
hp_ops = {
.program_type0 = program_hpx_type0,
...
}
pci_acpi_program_hp_params(&hp_ops)
drivers/pci/pci-acpi.c:
pci_acpi_program_hp_params(&hp_ops)
acpi_run_hpx(hp_ops)
decode_type0_hpx_record()
hp_ops->program_type0 # program_hpx_type0() called via hp_ops
After the ACPI-specific functions, structs, enums, etc., have been moved to
drivers/pci/pci-acpi.c there is no need for the hotplug_program_ops as all
of the _HPX Type 0, 1, 2 and 3 are directly accessible.
Link: https://lore.kernel.org/r/20190827094951.10613-4-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Move program_hpx_type0(), program_hpx_type1(), etc., and enums
hpx_type3_dev_type, hpx_type3_fn_type and hpx_type3_cfg_loc to
drivers/pci/pci-acpi.c as these functions and enums are ACPI-specific.
Move structs hpx_type0, hpx_type1, hpx_type2 and hpx_type3 to
drivers/pci/pci.h as these are shared between drivers/pci/pci-acpi.c and
drivers/pci/probe.c.
Link: https://lore.kernel.org/r/20190827094951.10613-3-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The names of the hpp_type0, hpp_type1 and hpp_type2 structs suggest that
they're related to _HPP, when in fact they're related to _HPX.
The struct hpp_type0 denotes an _HPX Type 0 setting record that supersedes
the _HPP setting record, and it has been used interchangeably for _HPP as
per the ACPI specification (see version 6.3, section 6.2.9.1) which states
that it should be applied to PCI, PCI-X and PCI Express devices, with
settings being ignored if they are not applicable.
Rename them to hpx_type0, hpx_type1 and hpx_type2 to reflect their relation
to _HPX rather than _HPP.
Link: https://lore.kernel.org/r/20190827094951.10613-2-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Move ASPM definitions and function prototypes from include/linux/pci-aspm.h
to include/linux/pci.h so users only need to include <linux/pci.h>:
PCIE_LINK_STATE_L0S
PCIE_LINK_STATE_L1
PCIE_LINK_STATE_CLKPM
pci_disable_link_state()
pci_disable_link_state_locked()
pcie_no_aspm()
No functional changes intended.
Link: https://lore.kernel.org/r/20190827095620.11213-1-kw@linux.com
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The sysfs SR-IOV functions are only needed when the kernel is built with
SR-IOV support. Rather than put them in pci-sysfs.c under #ifdef
CONFIG_PCI_IOV, move them to iov.c, which is only compiled when
CONFIG_PCI_IOV=y.
Link: https://lore.kernel.org/r/20190813204513.4790-4-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Donald Dutile <ddutile@redhat.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
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We prefer octal permissions over symbolic permissions such as "(S_IWUSR |
S_IWGRP)". Change all symbolic permissions to octal permissions, e.g.,
- (S_IWUSR | S_IWGRP)
+ 0220
Link: https://lore.kernel.org/r/20190813204513.4790-3-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Donald Dutile <ddutile@redhat.com>
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DEVICE_ATTR() should only be used when files have unusual permissions.
Change DEVICE_ATTR() with '0220' write-only permissions to
DEVICE_ATTR_WO(), e.g.,
- static DEVICE_ATTR(_name, (S_IWUSR | S_IWGRP), NULL, _store);
+ static DEVICE_ATTR_WO(_name);
Since _store is no longer passed, make the _name passed by DEVICE_ATTR_WO()
and the related _name##_store() name match with each other, e.g.,
DEVICE_ATTR_WO(bus_rescan) must be able to call bus_rescan_store()
Link: https://lore.kernel.org/r/20190815153352.86143-4-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Donald Dutile <ddutile@redhat.com>
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Device attributes should be defined using DEVICE_ATTR*(_name, _mode, _show,
_store). Convert them all from __ATTR*() to DEVICE_ATTR*(), e.g.,
- struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show,
_store)
+ static DEVICE_ATTR(foo, S_IWUSR | S_IRUGO, show_foo, store_foo)
Link: https://lore.kernel.org/r/20190813204513.4790-2-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Donald Dutile <ddutile@redhat.com>
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Mark switch cases where we are expecting to fall through.
This fixes the following warning (Building: allmodconfig i386):
drivers/pci/hotplug/ibmphp_res.c: In function ‘update_bridge_ranges’:
drivers/pci/hotplug/ibmphp_res.c:1943:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
function = 0x8;
~~~~~~~~~^~~~~
drivers/pci/hotplug/ibmphp_res.c:1944:6: note: here
case PCI_HEADER_TYPE_MULTIBRIDGE:
^~~~
Link: https://lore.kernel.org/r/20190802012248.GA22622@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
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These interfaces:
void pci_set_of_node(struct pci_dev *dev);
void pci_release_of_node(struct pci_dev *dev);
void pci_set_bus_of_node(struct pci_bus *bus);
void pci_release_bus_of_node(struct pci_bus *bus);
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-12-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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This interface:
int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
is only used in drivers/pci/ and does not need to be seen by the rest of
the kernel. Move it to drivers/pci/pci.h so it's private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-11-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These interfaces:
void pcie_set_ecrc_checking(struct pci_dev *dev);
void pcie_ecrc_get_policy(char *str);
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-10-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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This interface:
void pci_ats_init(struct pci_dev *dev);
is only used in drivers/pci/ and does not need to be seen by the rest of
the kernel. Move it to drivers/pci/pci.h so it's private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-9-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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This interface:
void pcie_update_link_speed(struct pci_bus *bus, u16 link_status);
is only used in drivers/pci/ and does not need to be seen by the rest of
the kernel. Move it to drivers/pci/pci.h so it's private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-8-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These interfaces:
struct pci_bus *pci_bus_get(struct pci_bus *bus);
void pci_bus_put(struct pci_bus *bus);
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-7-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These symbols:
extern unsigned long pci_hotplug_io_size;
extern unsigned long pci_hotplug_mem_size;
extern unsigned long pci_hotplug_bus_size;
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-6-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These Virtual Channel interfaces:
int pci_save_vc_state(struct pci_dev *dev);
void pci_restore_vc_state(struct pci_dev *dev);
void pci_allocate_vc_save_buffers(struct pci_dev *dev);
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-5-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These interfaces:
struct device *pci_get_host_bridge_device(struct pci_dev *dev);
void pci_put_host_bridge_device(struct device *dev);
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-4-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These interfaces:
bool pci_check_pme_status(struct pci_dev *dev);
void pci_pme_wakeup_bus(struct pci_bus *bus);
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-3-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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These delay time definitions:
#define PCI_PM_D2_DELAY 200
#define PCI_PM_D3_WAIT 10
#define PCI_PM_D3COLD_WAIT 100
#define PCI_PM_BUS_WAIT 50
are only used in drivers/pci/ and do not need to be seen by the rest of the
kernel. Move them to drivers/pci/pci.h so they're private to the PCI
subsystem.
Link: https://lore.kernel.org/r/20190724233848.73327-2-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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devm_add_action_or_reset() is a helper function which internally calls
devm_add_action(). If the devm_add_action() fails, it will execute the
action mentioned and return the error code.
Use devm_add_action_or_reset() to reduce source code size (avoid writing
the action twice) and reduce the likelihood of bugs.
Link: https://lore.kernel.org/r/20190708123354.12127-1-huangfq.daxian@gmail.com
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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pci_bus_sem is not used by a loadable kernel module and does not need to be
exported.
It was exported by ce29ca3ea407 ("PCI: acpiphp: remove all functions in
slot, even without ACPI _EJx"), which added a use of pci_bus_sem in
acpiphp, which could be built as a module at that time. But since
6037a803b05e ("PCI: acpiphp: Convert acpiphp to be builtin only, not
modular"), it can no longer be built as a module.
Link: https://lore.kernel.org/r/20190718032951.40188-1-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
|
pci_bus_get() and pci_bus_put() are not used by a loadable kernel module
and do not need to be exported.
These were exported by fe830ef62ac6 ("PCI: Introduce pci_bus_{get|put}() to
manage PCI bus reference count"), but there are no loadable modules in the
tree that use them.
Link: https://lore.kernel.org/r/20190717182353.45557-1-skunberg.kelsey@gmail.com
Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The commit b3aa14f02254 ("iommu: remove the mapping_error dma_map_ops
method") incorrectly changed the checking from dma_ops_alloc_iova() in
map_sg() causes a crash under memory pressure as dma_ops_alloc_iova()
never return DMA_MAPPING_ERROR on failure but 0, so the error handling
is all wrong.
kernel BUG at drivers/iommu/iova.c:801!
Workqueue: kblockd blk_mq_run_work_fn
RIP: 0010:iova_magazine_free_pfns+0x7d/0xc0
Call Trace:
free_cpu_cached_iovas+0xbd/0x150
alloc_iova_fast+0x8c/0xba
dma_ops_alloc_iova.isra.6+0x65/0xa0
map_sg+0x8c/0x2a0
scsi_dma_map+0xc6/0x160
pqi_aio_submit_io+0x1f6/0x440 [smartpqi]
pqi_scsi_queue_command+0x90c/0xdd0 [smartpqi]
scsi_queue_rq+0x79c/0x1200
blk_mq_dispatch_rq_list+0x4dc/0xb70
blk_mq_sched_dispatch_requests+0x249/0x310
__blk_mq_run_hw_queue+0x128/0x200
blk_mq_run_work_fn+0x27/0x30
process_one_work+0x522/0xa10
worker_thread+0x63/0x5b0
kthread+0x1d2/0x1f0
ret_from_fork+0x22/0x40
Fixes: b3aa14f02254 ("iommu: remove the mapping_error dma_map_ops method")
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull NTB updates from Jon Mason:
"New feature to add support for NTB virtual MSI interrupts, the ability
to test and use this feature in the NTB transport layer.
Also, bug fixes for the AMD and Switchtec drivers, as well as some
general patches"
* tag 'ntb-5.3' of git://github.com/jonmason/ntb: (22 commits)
NTB: Describe the ntb_msi_test client in the documentation.
NTB: Add MSI interrupt support to ntb_transport
NTB: Add ntb_msi_test support to ntb_test
NTB: Introduce NTB MSI Test Client
NTB: Introduce MSI library
NTB: Rename ntb.c to support multiple source files in the module
NTB: Introduce functions to calculate multi-port resource index
NTB: Introduce helper functions to calculate logical port number
PCI/switchtec: Add module parameter to request more interrupts
PCI/MSI: Support allocating virtual MSI interrupts
ntb_hw_switchtec: Fix setup MW with failure bug
ntb_hw_switchtec: Skip unnecessary re-setup of shared memory window for crosslink case
ntb_hw_switchtec: Remove redundant steps of switchtec_ntb_reinit_peer() function
NTB: correct ntb_dev_ops and ntb_dev comment typos
NTB: amd: Silence shift wrapping warning in amd_ntb_db_vector_mask()
ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()
NTB: ntb_transport: Ensure qp->tx_mw_dma_addr is initaliazed
NTB: ntb_hw_amd: set peer limit register
NTB: ntb_perf: Clear stale values in doorbell and command SPAD register
NTB: ntb_perf: Disable NTB link after clearing peer XLAT registers
...
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Pull more input updates from Dmitry Torokhov:
- Apple SPI keyboard and trackpad driver for newer Macs
- ALPS driver will ignore trackpoint-only devices to give the
trackpoint driver a chance to handle them properly
- another Lenovo is switched over to SMbus from PS/2
- assorted driver fixups.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: alps - fix a mismatch between a condition check and its comment
Input: psmouse - fix build error of multiple definition
Input: applespi - remove set but not used variables 'sts'
Input: add Apple SPI keyboard and trackpad driver
Input: alps - don't handle ALPS cs19 trackpoint-only device
Input: hyperv-keyboard - remove dependencies on PAGE_SIZE for ring buffer
Input: adp5589 - initialize GPIO controller parent device
Input: iforce - remove empty multiline comments
Input: synaptics - fix misuse of strlcpy
Input: auo-pixcir-ts - switch to using devm_add_action_or_reset()
Input: gtco - bounds check collection indent level
Input: mtk-pmic-keys - add of_node_put() before return
Input: sun4i-lradc-keys - add of_node_put() before return
Input: synaptics - whitelist Lenovo T580 SMBus intertouch
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Pull SCSI fixes from James Bottomley:
"This is the final round of mostly small fixes in our initial submit.
It's mostly minor fixes and driver updates. The only change of note is
adding a virt_boundary_mask to the SCSI host and host template to
parametrise this for NVMe devices instead of having them do a call in
slave_alloc. It's a fairly straightforward conversion except in the
two NVMe handling drivers that didn't set it who now have a virtual
infinity parameter added"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
scsi: megaraid_sas: set an unlimited max_segment_size
scsi: mpt3sas: set an unlimited max_segment_size for SAS 3.0 HBAs
scsi: IB/srp: set virt_boundary_mask in the scsi host
scsi: IB/iser: set virt_boundary_mask in the scsi host
scsi: storvsc: set virt_boundary_mask in the scsi host template
scsi: ufshcd: set max_segment_size in the scsi host template
scsi: core: take the DMA max mapping size into account
scsi: core: add a host / host template field for the virt boundary
scsi: core: Fix race on creating sense cache
scsi: sd_zbc: Fix compilation warning
scsi: libfc: fix null pointer dereference on a null lport
scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized
scsi: zfcp: fix request object use-after-free in send path causing wrong traces
scsi: zfcp: fix request object use-after-free in send path causing seqno errors
scsi: megaraid_sas: Update driver version to 07.710.50.00
scsi: megaraid_sas: Add module parameter for FW Async event logging
scsi: megaraid_sas: Enable msix_load_balance for Invader and later controllers
scsi: megaraid_sas: Fix calculation of target ID
scsi: lpfc: reduce stack size with CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE
scsi: devinfo: BLIST_TRY_VPD_PAGES for SanDisk Cruzer Blade
...
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Pull more Kbuild updates from Masahiro Yamada:
- match the directory structure of the linux-libc-dev package to that
of Debian-based distributions
- fix incorrect include/config/auto.conf generation when Kconfig
creates it along with the .config file
- remove misleading $(AS) from documents
- clean up precious tag files by distclean instead of mrproper
- add a new coccinelle patch for devm_platform_ioremap_resource
migration
- refactor module-related scripts to read modules.order instead of
$(MODVERDIR)/*.mod files to get the list of created modules
- remove MODVERDIR
- update list of header compile-test
- add -fcf-protection=none flag to avoid conflict with the retpoline
flags when CONFIG_RETPOLINE=y
- misc cleanups
* tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
kbuild: add -fcf-protection=none when using retpoline flags
kbuild: update compile-test header list for v5.3-rc1
kbuild: split out *.mod out of {single,multi}-used-m rules
kbuild: remove 'prepare1' target
kbuild: remove the first line of *.mod files
kbuild: create *.mod with full directory path and remove MODVERDIR
kbuild: export_report: read modules.order instead of .tmp_versions/*.mod
kbuild: modpost: read modules.order instead of $(MODVERDIR)/*.mod
kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod
kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod
scsi: remove pointless $(MODVERDIR)/$(obj)/53c700.ver
kbuild: remove duplication from modules.order in sub-directories
kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
kbuild: do not create empty modules.order in the prepare stage
coccinelle: api: add devm_platform_ioremap_resource script
kbuild: compile-test headers listed in header-test-m as well
kbuild: remove unused hostcc-option
kbuild: remove tag files by distclean instead of mrproper
kbuild: add --hash-style= and --build-id unconditionally
kbuild: get rid of misleading $(AS) from documents
...
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Prepare second round of input updates for 5.3 merge window.
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Pull ARM Devicetree updates from Olof Johansson:
"We continue to see a lot of new material. I've highlighted some of it
below, but there's been more beyond that as well.
One of the sweeping changes is that many boards have seen their ARM
Mali GPU devices added to device trees, since the DRM drivers have now
been merged.
So, with the caveat that I have surely missed several great
contributions, here's a collection of the material this time around:
New SoCs:
- Mediatek mt8183 (4x Cortex-A73 + 4x Cortex-A53)
- TI J721E (2x Cortex-A72 + 3x Cortex-R5F + 3 DSPs + MMA)
- Amlogic G12B (4x Cortex-A73 + 2x Cortex-A53)
New Boards / platforms:
- Aspeed BMC support for a number of new server platforms
- Kontron SMARC SoM (several i.MX6 versions)
- Novtech's Meerkat96 (i.MX7)
- ST Micro Avenger96 board
- Hardkernel ODROID-N2 (Amlogic G12B)
- Purism Librem5 devkit (i.MX8MQ)
- Google Cheza (Qualcomm SDM845)
- Qualcomm Dragonboard 845c (Qualcomm SDM845)
- Hugsun X99 TV Box (Rockchip RK3399)
- Khadas Edge/Edge-V/Captain (Rockchip RK3399)
Updated / expanded boards and platforms:
- Renesas r7s9210 has a lot of new peripherals added
- Fixes and polish for Rockchip-based Chromebooks
- Amlogic G12A has a lot of peripherals added
- Nvidia Jetson Nano sees various fixes and improvements, and is now
at feature parity with TX1"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (586 commits)
ARM: dts: gemini: Set DIR-685 SPI CS as active low
ARM: dts: exynos: Adjust buck[78] regulators to supported values on Arndale Octa
ARM: dts: exynos: Adjust buck[78] regulators to supported values on Odroid XU3 family
ARM: dts: exynos: Move Mali400 GPU node to "/soc"
ARM: dts: exynos: Fix imprecise abort on Mali GPU probe on Exynos4210
arm64: dts: qcom: qcs404: Add missing space for cooling-cells property
arm64: dts: rockchip: Fix USB3 Type-C on rk3399-sapphire
arm64: dts: rockchip: Update DWC3 modules on RK3399 SoCs
arm64: dts: rockchip: enable rk3328 watchdog clock
ARM: dts: rockchip: add display nodes for rk322x
ARM: dts: rockchip: fix vop iommu-cells on rk322x
arm64: dts: rockchip: Add support for Hugsun X99 TV Box
arm64: dts: rockchip: Define values for the IPA governor for rock960
arm64: dts: rockchip: Fix multiple thermal zones conflict in rk3399.dtsi
arm64: dts: rockchip: add core dtsi file for RK3399Pro SoCs
arm64: dts: rockchip: improve rk3328-roc-cc rgmii performance.
Revert "ARM: dts: rockchip: set PWM delay backlight settings for Minnie"
ARM: dts: rockchip: Configure BT_DEV_WAKE in on rk3288-veyron
arm64: dts: qcom: sdm845-cheza: add initial cheza dt
ARM: dts: msm8974-FP2: Add vibration motor
...
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Pull ARM SoC-related driver updates from Olof Johansson:
"Various driver updates for platforms and a couple of the small driver
subsystems we merge through our tree:
- A driver for SCU (system control) on NXP i.MX8QXP
- Qualcomm Always-on Subsystem messaging driver (AOSS QMP)
- Qualcomm PM support for MSM8998
- Support for a newer version of DRAM PHY driver for Broadcom (DPFE)
- Reset controller support for Bitmain BM1880
- TI SCI (System Control Interface) support for CPU control on AM654
processors
- More TI sysc refactoring and rework"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (84 commits)
reset: remove redundant null check on pointer dev
soc: rockchip: work around clang warning
dt-bindings: reset: imx7: Fix the spelling of 'indices'
soc: imx: Add i.MX8MN SoC driver support
soc: aspeed: lpc-ctrl: Fix probe error handling
soc: qcom: geni: Add support for ACPI
firmware: ti_sci: Fix gcc unused-but-set-variable warning
firmware: ti_sci: Use the correct style for SPDX License Identifier
soc: imx8: Use existing of_root directly
soc: imx8: Fix potential kernel dump in error path
firmware/psci: psci_checker: Park kthreads before stopping them
memory: move jedec_ddr.h from include/memory to drivers/memory/
memory: move jedec_ddr_data.c from lib/ to drivers/memory/
MAINTAINERS: Remove myself as qcom maintainer
soc: aspeed: lpc-ctrl: make parameter optional
soc: qcom: apr: Don't use reg for domain id
soc: qcom: fix QCOM_AOSS_QMP dependency and build errors
memory: tegra: Fix -Wunused-const-variable
firmware: tegra: Early resume BPMP
soc/tegra: Select pinctrl for Tegra194
...
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Pull ARM SoC platform updates from Olof Johansson:
"SoC platform changes. Main theme this merge window:
- The Netx platform (Netx 100/500) platform is removed by Linus
Walleij-- the SoC doesn't have active maintainers with hardware,
and in discussions with the vendor the agreement was that it's OK
to remove.
- Russell King has a series of patches that cleans up and refactors
SA1101 and RiscPC support"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
ARM: stm32: use "depends on" instead of "if" after prompt
ARM: sa1100: convert to common clock framework
ARM: exynos: Cleanup cppcheck shifting warning
ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view
ARM: exynos: Only build MCPM support if used
arm: add missing include platform-data/atmel.h
ARM: davinci: Use GPIO lookup table for DA850 LEDs
ARM: OMAP2: drop explicit assembler architecture
ARM: use arch_extension directive instead of arch argument
ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading
ARM: bcm: Enable PINCTRL for ARCH_BRCMSTB
ARM: bcm: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB
ARM: riscpc: enable chained scatterlist support
ARM: riscpc: reduce IRQ handling code
ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc
ARM: riscpc: parse video information from tagged list
ARM: riscpc: add ecard quirk for Atomwide 3port serial card
MAINTAINERS: mvebu: Add git entry
soc: ti: pm33xx: Add a print while entering RTC only mode with DDR in self-refresh
ARM: OMAP2+: Make some variables static
...
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Pull drm fixes from Daniel Vetter:
"Dave is back in shape, but now family got it so I'm doing the pull.
Two things worthy of note:
- nouveau feature pull was way too late, Dave&me decided to not take
that, so Ben spun up a pull with just the fixes.
- after some chatting with the arm display maintainers we decided to
change a bit how that's maintained, for more oversight/review and
cross vendor collab.
More details below:
nouveau:
- bugfixes
- TU116 enabling (minor iteration) :w
amdgpu:
- large pile of fixes for new hw support this release (navi, vega20)
- audio hotplug fix
- bunch of corner cases and small fixes all over for amdgpu/kfd
komeda:
- back out some new properties (from this merge window) that needs
more pondering.
bochs:
- fb pitch setup
core:
- a new panel quirk
- misc fixes"
* tag 'drm-next-2019-07-19' of git://anongit.freedesktop.org/drm/drm: (73 commits)
drm/nouveau/secboot/gp102-: remove WAR for SEC2 RTOS start bug
drm/nouveau/flcn/gp102-: improve implementation of bind_context() on SEC2/GSP
drm/nouveau: fix memory leak in nouveau_conn_reset()
drm/nouveau/dmem: missing mutex_lock in error path
drm/nouveau/hwmon: return EINVAL if the GPU is powered down for sensors reads
drm/nouveau: fix bogus GPL-2 license header
drm/nouveau: fix bogus GPL-2 license header
drm/nouveau/i2c: Enable i2c pads & busses during preinit
drm/nouveau/disp/tu102-: wire up scdc parameter setter
drm/nouveau/core: recognise TU116 chipset
drm/nouveau/kms: disallow dual-link harder if hdmi connection detected
drm/nouveau/disp/nv50-: fix center/aspect-corrected scaling
drm/nouveau/disp/nv50-: force scaler for any non-default LVDS/eDP modes
drm/nouveau/mcp89/mmu: Use mcp77_mmu_new instead of g84_mmu_new on MCP89.
drm/amd/display: init res_pool dccg_ref, dchub_ref with xtalin_freq
drm/amdgpu/pm: remove check for pp funcs in freq sysfs handlers
drm/amd/display: Force uclk to max for every state
drm/amdkfd: Remove GWS from process during uninit
drm/amd/amdgpu: Fix offset for vmid selection in debugfs interface
drm/amd/powerplay: update vega20 driver if to fit latest SMU firmware
...
|
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Pull crypto fixes from Herbert Xu:
- Fix missed wake-up race in padata
- Use crypto_memneq in ccp
- Fix version check in ccp
- Fix fuzz test failure in ccp
- Fix potential double free in crypto4xx
- Fix compile warning in stm32
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
padata: use smp_mb in padata_reorder to avoid orphaned padata jobs
crypto: ccp - Fix SEV_VERSION_GREATER_OR_EQUAL
crypto: ccp/gcm - use const time tag comparison.
crypto: ccp - memset structure fields to zero before reuse
crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe
crypto: stm32/hash - Fix incorrect printk modifier for size_t
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Pull xen updates from Juergen Gross:
"Fixes and features:
- A series to introduce a common command line parameter for disabling
paravirtual extensions when running as a guest in virtualized
environment
- A fix for int3 handling in Xen pv guests
- Removal of the Xen-specific tmem driver as support of tmem in Xen
has been dropped (and it was experimental only)
- A security fix for running as Xen dom0 (XSA-300)
- A fix for IRQ handling when offlining cpus in Xen guests
- Some small cleanups"
* tag 'for-linus-5.3a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: let alloc_xenballooned_pages() fail if not enough memory free
xen/pv: Fix a boot up hang revealed by int3 self test
x86/xen: Add "nopv" support for HVM guest
x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable
xen: Map "xen_nopv" parameter to "nopv" and mark it obsolete
x86: Add "nopv" parameter to disable PV extensions
x86/xen: Mark xen_hvm_need_lapic() and xen_x2apic_para_available() as __init
xen: remove tmem driver
Revert "x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized"
xen/events: fix binding user event channels to cpus
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Pull vfs mount updates from Al Viro:
"The first part of mount updates.
Convert filesystems to use the new mount API"
* 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
mnt_init(): call shmem_init() unconditionally
constify ksys_mount() string arguments
don't bother with registering rootfs
init_rootfs(): don't bother with init_ramfs_fs()
vfs: Convert smackfs to use the new mount API
vfs: Convert selinuxfs to use the new mount API
vfs: Convert securityfs to use the new mount API
vfs: Convert apparmorfs to use the new mount API
vfs: Convert openpromfs to use the new mount API
vfs: Convert xenfs to use the new mount API
vfs: Convert gadgetfs to use the new mount API
vfs: Convert oprofilefs to use the new mount API
vfs: Convert ibmasmfs to use the new mount API
vfs: Convert qib_fs/ipathfs to use the new mount API
vfs: Convert efivarfs to use the new mount API
vfs: Convert configfs to use the new mount API
vfs: Convert binfmt_misc to use the new mount API
convenience helper: get_tree_single()
convenience helper get_tree_nodev()
vfs: Kill sget_userns()
...
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Pull networking fixes from David Miller:
1) Fix AF_XDP cq entry leak, from Ilya Maximets.
2) Fix handling of PHY power-down on RTL8411B, from Heiner Kallweit.
3) Add some new PCI IDs to iwlwifi, from Ihab Zhaika.
4) Fix handling of neigh timers wrt. entries added by userspace, from
Lorenzo Bianconi.
5) Various cases of missing of_node_put(), from Nishka Dasgupta.
6) The new NET_ACT_CT needs to depend upon NF_NAT, from Yue Haibing.
7) Various RDS layer fixes, from Gerd Rausch.
8) Fix some more fallout from TCQ_F_CAN_BYPASS generalization, from
Cong Wang.
9) Fix FIB source validation checks over loopback, also from Cong Wang.
10) Use promisc for unsupported number of filters, from Justin Chen.
11) Missing sibling route unlink on failure in ipv6, from Ido Schimmel.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
tcp: fix tcp_set_congestion_control() use from bpf hook
ag71xx: fix return value check in ag71xx_probe()
ag71xx: fix error return code in ag71xx_probe()
usb: qmi_wwan: add D-Link DWM-222 A2 device ID
bnxt_en: Fix VNIC accounting when enabling aRFS on 57500 chips.
net: dsa: sja1105: Fix missing unlock on error in sk_buff()
gve: replace kfree with kvfree
selftests/bpf: fix test_xdp_noinline on s390
selftests/bpf: fix "valid read map access into a read-only array 1" on s390
net/mlx5: Replace kfree with kvfree
MAINTAINERS: update netsec driver
ipv6: Unlink sibling route in case of failure
liquidio: Replace vmalloc + memset with vzalloc
udp: Fix typo in net/ipv4/udp.c
net: bcmgenet: use promisc for unsupported filters
ipv6: rt6_check should return NULL if 'from' is NULL
tipc: initialize 'validated' field of received packets
selftests: add a test case for rp_filter
fib: relax source validation check for loopback packets
mlxsw: spectrum: Do not process learned records with a dummy FID
...
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Merge yet more updates from Andrew Morton:
"The rest of MM and a kernel-wide procfs cleanup.
Summary of the more significant patches:
- Patch series "mm/memory_hotplug: Factor out memory block
devicehandling", v3. David Hildenbrand.
Some spring-cleaning of the memory hotplug code, notably in
drivers/base/memory.c
- "mm: thp: fix false negative of shmem vma's THP eligibility". Yang
Shi.
Fix /proc/pid/smaps output for THP pages used in shmem.
- "resource: fix locking in find_next_iomem_res()" + 1. Nadav Amit.
Bugfix and speedup for kernel/resource.c
- Patch series "mm: Further memory block device cleanups", David
Hildenbrand.
More spring-cleaning of the memory hotplug code.
- Patch series "mm: Sub-section memory hotplug support". Dan
Williams.
Generalise the memory hotplug code so that pmem can use it more
completely. Then remove the hacks from the libnvdimm code which
were there to work around the memory-hotplug code's constraints.
- "proc/sysctl: add shared variables for range check", Matteo Croce.
We have about 250 instances of
int zero;
...
.extra1 = &zero,
in the tree. This is a tree-wide sweep to make all those private
"zero"s and "one"s use global variables.
Alas, it isn't practical to make those two global integers const"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (38 commits)
proc/sysctl: add shared variables for range check
mm: migrate: remove unused mode argument
mm/sparsemem: cleanup 'section number' data types
libnvdimm/pfn: stop padding pmem namespaces to section alignment
libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
mm/devm_memremap_pages: enable sub-section remap
mm: document ZONE_DEVICE memory-model implications
mm/sparsemem: support sub-section hotplug
mm/sparsemem: prepare for sub-section ranges
mm: kill is_dev_zone() helper
mm/hotplug: kill is_dev_zone() usage in __remove_pages()
mm/sparsemem: convert kmalloc_section_memmap() to populate_section_memmap()
mm/hotplug: prepare shrink_{zone, pgdat}_span for sub-section removal
mm/sparsemem: add helpers track active portions of a section at boot
mm/sparsemem: introduce a SECTION_IS_EARLY flag
mm/sparsemem: introduce struct mem_section_usage
drivers/base/memory.c: get rid of find_memory_block_hinted()
mm/memory_hotplug: move and simplify walk_memory_blocks()
mm/memory_hotplug: rename walk_memory_range() and pass start+size instead of pfns
mm: make register_mem_sect_under_node() static
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Bjorn Helgaas
Mika Westerberg
Abhinav Ratna
Logan Gunthorpe
Krzysztof Wilczynski
Kelsey Skunberg
Gustavo A. R. Silva
Fuqian Huang
Qian Cai
Linus Torvalds
Dmitry Torokhov