linux-stable/drivers/pci/hotplug
David Howells 01b961b70d Annotate hardware config module parameters in drivers/pci/hotplug/
When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in drivers/pci/hotplug/.

Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
cc: Scott Murray <scott@spiteful.org>
cc: linux-pci@vger.kernel.org
2017-04-20 12:02:32 +01:00
..
acpi_pcihp.c
acpiphp.h
acpiphp_core.c
acpiphp_glue.c
acpiphp_ibm.c PCI: acpiphp_ibm: Make ibm_apci_table_attr __ro_after_init 2017-01-11 14:56:02 -06:00
cpci_hotplug.h
cpci_hotplug_core.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
cpci_hotplug_pci.c
cpcihp_generic.c Annotate hardware config module parameters in drivers/pci/hotplug/ 2017-04-20 12:02:32 +01:00
cpcihp_zt5550.c
cpcihp_zt5550.h
cpqphp.h sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
cpqphp_core.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cpqphp_ctrl.c
cpqphp_nvram.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cpqphp_nvram.h
cpqphp_pci.c
cpqphp_sysfs.c
ibmphp.h
ibmphp_core.c
ibmphp_ebda.c
ibmphp_hpc.c
ibmphp_pci.c
ibmphp_res.c
Kconfig
Makefile
pci_hotplug_core.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
pciehp.h sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
pciehp_core.c
pciehp_ctrl.c Revert "PCI: pciehp: Add runtime PM support for PCIe hotplug ports" 2017-02-03 08:53:51 -06:00
pciehp_hpc.c
pciehp_pci.c
pcihp_skeleton.c
pnv_php.c powerpc updates for 4.11 part 2 2017-03-01 10:10:16 -08:00
rpadlpar.h
rpadlpar_core.c PCI: rpadlpar: Remove unnecessary return statement 2017-01-11 14:53:59 -06:00
rpadlpar_sysfs.c
rpaphp.h
rpaphp_core.c
rpaphp_pci.c
rpaphp_slot.c
s390_pci_hpc.c
sgi_hotplug.c
shpchp.h sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
shpchp_core.c
shpchp_ctrl.c
shpchp_hpc.c
shpchp_pci.c
shpchp_sysfs.c