Revision 77e5bdf9f7b2d20939c8d807f3e68778d6e1557a authored by Linus Torvalds on 14 September 2016, 16:35:05 UTC, committed by Linus Torvalds on 14 September 2016, 16:35:05 UTC
Pull uaccess fixes from Al Viro: "Fixes for broken uaccess primitives - mostly lack of proper zeroing in copy_from_user()/get_user()/__get_user(), but for several architectures there's more (broken clear_user() on frv and strncpy_from_user() on hexagon)" * 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits) avr32: fix copy_from_user() microblaze: fix __get_user() microblaze: fix copy_from_user() m32r: fix __get_user() blackfin: fix copy_from_user() sparc32: fix copy_from_user() sh: fix copy_from_user() sh64: failing __get_user() should zero score: fix copy_from_user() and friends score: fix __get_user/get_user s390: get_user() should zero on failure ppc32: fix copy_from_user() parisc: fix copy_from_user() openrisc: fix copy_from_user() nios2: fix __get_user() nios2: copy_from_user() should zero the tail of destination mn10300: copy_from_user() should zero on access_ok() failure... mn10300: failing __get_user() and get_user() should zero mips: copy_from_user() must zero the destination on access_ok() failure ARC: uaccess: get_user to zero out dest in cause of fault ...
platform_pci.h
#ifndef _XEN_PLATFORM_PCI_H
#define _XEN_PLATFORM_PCI_H
#define XEN_IOPORT_MAGIC_VAL 0x49d2
#define XEN_IOPORT_LINUX_PRODNUM 0x0003
#define XEN_IOPORT_LINUX_DRVVER 0x0001
#define XEN_IOPORT_BASE 0x10
#define XEN_IOPORT_PLATFLAGS (XEN_IOPORT_BASE + 0) /* 1 byte access (R/W) */
#define XEN_IOPORT_MAGIC (XEN_IOPORT_BASE + 0) /* 2 byte access (R) */
#define XEN_IOPORT_UNPLUG (XEN_IOPORT_BASE + 0) /* 2 byte access (W) */
#define XEN_IOPORT_DRVVER (XEN_IOPORT_BASE + 0) /* 4 byte access (W) */
#define XEN_IOPORT_SYSLOG (XEN_IOPORT_BASE + 2) /* 1 byte access (W) */
#define XEN_IOPORT_PROTOVER (XEN_IOPORT_BASE + 2) /* 1 byte access (R) */
#define XEN_IOPORT_PRODNUM (XEN_IOPORT_BASE + 2) /* 2 byte access (W) */
#define XEN_UNPLUG_ALL_IDE_DISKS (1<<0)
#define XEN_UNPLUG_ALL_NICS (1<<1)
#define XEN_UNPLUG_AUX_IDE_DISKS (1<<2)
#define XEN_UNPLUG_ALL (XEN_UNPLUG_ALL_IDE_DISKS|\
XEN_UNPLUG_ALL_NICS|\
XEN_UNPLUG_AUX_IDE_DISKS)
#define XEN_UNPLUG_UNNECESSARY (1<<16)
#define XEN_UNPLUG_NEVER (1<<17)
static inline int xen_must_unplug_nics(void) {
#if (defined(CONFIG_XEN_NETDEV_FRONTEND) || \
defined(CONFIG_XEN_NETDEV_FRONTEND_MODULE)) && \
defined(CONFIG_XEN_PVHVM)
return 1;
#else
return 0;
#endif
}
static inline int xen_must_unplug_disks(void) {
#if (defined(CONFIG_XEN_BLKDEV_FRONTEND) || \
defined(CONFIG_XEN_BLKDEV_FRONTEND_MODULE)) && \
defined(CONFIG_XEN_PVHVM)
return 1;
#else
return 0;
#endif
}
#if defined(CONFIG_XEN_PVHVM)
extern bool xen_has_pv_devices(void);
extern bool xen_has_pv_disk_devices(void);
extern bool xen_has_pv_nic_devices(void);
extern bool xen_has_pv_and_legacy_disk_devices(void);
#else
static inline bool xen_has_pv_devices(void)
{
return IS_ENABLED(CONFIG_XEN);
}
static inline bool xen_has_pv_disk_devices(void)
{
return IS_ENABLED(CONFIG_XEN);
}
static inline bool xen_has_pv_nic_devices(void)
{
return IS_ENABLED(CONFIG_XEN);
}
static inline bool xen_has_pv_and_legacy_disk_devices(void)
{
return false;
}
#endif
#endif /* _XEN_PLATFORM_PCI_H */
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