Linus Torvalds
642e7fd233
Merge branch 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux ...
Pull removal of in-kernel calls to syscalls from Dominik Brodowski:
"System calls are interaction points between userspace and the kernel.
Therefore, system call functions such as sys_xyzzy() or
compat_sys_xyzzy() should only be called from userspace via the
syscall table, but not from elsewhere in the kernel.
At least on 64-bit x86, it will likely be a hard requirement from
v4.17 onwards to not call system call functions in the kernel: It is
better to use use a different calling convention for system calls
there, where struct pt_regs is decoded on-the-fly in a syscall wrapper
which then hands processing over to the actual syscall function. This
means that only those parameters which are actually needed for a
specific syscall are passed on during syscall entry, instead of
filling in six CPU registers with random user space content all the
time (which may cause serious trouble down the call chain). Those
x86-specific patches will be pushed through the x86 tree in the near
future.
Moreover, rules on how data may be accessed may differ between kernel
data and user data. This is another reason why calling sys_xyzzy() is
generally a bad idea, and -- at most -- acceptable in arch-specific
code.
This patchset removes all in-kernel calls to syscall functions in the
kernel with the exception of arch/. On top of this, it cleans up the
three places where many syscalls are referenced or prototyped, namely
kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h"
* 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits)
bpf: whitelist all syscalls for error injection
kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions
kernel/sys_ni: sort cond_syscall() entries
syscalls/x86: auto-create compat_sys_*() prototypes
syscalls: sort syscall prototypes in include/linux/compat.h
net: remove compat_sys_*() prototypes from net/compat.h
syscalls: sort syscall prototypes in include/linux/syscalls.h
kexec: move sys_kexec_load() prototype to syscalls.h
x86/sigreturn: use SYSCALL_DEFINE0
x86: fix sys_sigreturn() return type to be long, not unsigned long
x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead()
mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate()
fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare()
...
2018-04-02 21:22:12 -07:00
can: dev: Add support for limiting configured bitrate
2018-01-16 15:11:32 +01:00
firmware /meson
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
Staging/IIO patches for 4.16-rc1
2018-02-01 09:51:57 -08:00
arch: remove obsolete architecture ports
2018-04-02 20:20:12 -07:00
lockd: convert nlm_rqst.a_count from atomic_t to refcount_t
2018-01-14 23:06:30 -05:00
RTC for 4.16
2018-02-02 14:19:19 -08:00
IB/mlx5: Fix integer overflows in mlx5_ib_create_srq
2018-03-13 16:31:21 -04:00
mmc: slot-gpio: add a helper to check capability of GPIO WP detection
2018-01-18 09:08:56 +01:00
Core changes:
2018-01-29 09:58:36 +01:00
mux: add SPDX identifiers to all mux source files
2018-01-09 16:51:44 +01:00
netfilter: x_tables: add and use xt_check_proc_name
2018-03-11 21:24:29 +01:00
arm_pmu: acpi: request IRQs up-front
2018-02-20 11:34:54 +00:00
pinctrl: remove include file from <linux/device.h>
2018-02-03 12:10:09 -08:00
input: misc: remove blackfin rotary driver
2018-03-26 15:56:59 +02:00
raid: remove tile specific raid6 implementation
2018-03-26 15:56:28 +02:00
regulator: add PM suspend and resume hooks
2018-01-26 14:43:55 +00:00
sched/cpufreq: Provide migration hint
2018-03-09 07:59:20 +01:00
ARM: SoC driver updates for 4.16
2018-02-01 16:35:31 -08:00
NFS client bugfixes and latency improvements for Linux 4.16
2018-02-09 14:55:30 -08:00
arch: remove obsolete architecture ports
2018-04-02 20:20:12 -07:00
acpi: Introduce acpi_arch_get_root_pointer() for getting rsdp address
2018-02-26 08:43:20 +01:00
sched/cpufreq: Remove arch_scale_freq_capacity()'s 'sd' parameter
2018-01-10 12:53:34 +01:00
arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
2018-02-06 22:54:15 +00:00
firmware: arm_sdei: Add driver for Software Delegated Exceptions
2018-01-13 10:44:56 +00:00
scsi: ata: enhance the definition of SET MAX feature field value
2018-01-10 23:25:08 -05:00
lockdep: Convert some users to const
2018-01-18 11:56:49 +01:00
video: backlight: Add devres versions of of_find_backlight
2018-01-29 10:34:53 -05:00
block: display the correct diskname for bio
2018-03-01 08:41:25 -07:00
bitmap: fix memset optimization on big-endian systems
2018-04-02 20:52:27 -07:00
blkcg: simplify statistic accumulation code
2018-01-16 08:56:36 -07:00
blk-mq: rename blk_mq_hw_ctx->queue_rq_srcu to ->srcu
2018-01-09 09:31:15 -07:00
blk-mq: introduce BLK_STS_DEV_RESOURCE
2018-01-30 20:18:28 -07:00
block: fix a typo in comment of BLK_MQ_POLL_STATS_BKTS
2018-02-15 08:27:06 -07:00
mm: remove obsolete alloc_remap()
2018-03-16 10:56:13 +01:00
bpf: offload: report device information about offloaded maps
2018-01-18 22:54:25 +01:00
bpf: export function to write into verifier log buffer
2018-01-10 13:49:36 +01:00
for-linus-20180204
2018-02-04 11:16:35 -08:00
build_bug.h: remove BUILD_BUG_ON_NULL()
2018-02-06 18:32:46 -08:00
net: use skb_to_full_sk() in skb_update_prio()
2018-03-14 12:53:23 -04:00
Merge branches 'clk-remove-asm-clkdev', 'clk-debugfs-fixes', 'clk-renesas' and 'clk-meson' into clk-next
2018-01-26 16:43:32 -08:00
bpf: whitelist all syscalls for error injection
2018-04-02 20:16:21 +02:00
x86/retpoline: Support retpoline builds with Clang
2018-02-20 11:17:58 +01:00
Merge branch 'x86/pti' into x86/mm, to pick up dependencies
2018-03-12 12:10:03 +01:00
bug.h: work around GCC PR82365 in BUG()
2018-02-21 15:35:43 -08:00
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-14 09:51:25 -08:00
cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
2018-02-08 10:21:39 +01:00
arch: remove blackfin port
2018-03-16 10:55:47 +01:00
Merge branches 'pm-cpuidle' and 'pm-opp'
2018-02-15 12:01:53 +01:00
cpumask: Make for_each_cpu_wrap() available on UP as well
2018-02-16 10:40:24 +01:00
kernel/cpuset: current_cpuset_is_being_rebound can be boolean
2018-02-06 18:32:47 -08:00
kdump: write correct address of mem_section into vmcoreinfo
2018-01-13 10:42:48 -08:00
crash_dump: is_kdump_kernel can be boolean
2018-02-06 18:32:47 -08:00
crypto: hash - prevent using keyed hashes without setting key
2018-01-12 23:03:37 +11:00
vfs: factor out helpers d_instantiate_anon() and d_alloc_anon()
2018-01-24 11:25:59 +01:00
delayacct: Account blkio completion on the correct task
2018-01-16 03:29:36 +01:00
dm mpath: delay the retry of a request if the target responded as busy
2018-01-29 13:44:54 -05:00
pinctrl: remove include file from <linux/device.h>
2018-02-03 12:10:09 -08:00
dma/direct: Handle the memory encryption bit in common code
2018-03-20 10:01:59 +01:00
dma-mapping: Don't clear GFP_ZERO in dma_alloc_attrs
2018-03-28 17:34:23 +02:00
firmware/dmi_scan: Uninline dmi_get_bios_year() helper
2018-03-27 11:33:15 +02:00
efi: Use efi_mm in x86 as well as ARM
2018-03-12 10:05:01 +01:00
block: Unexport elv_register_queue() and elv_unregister_queue()
2018-01-18 12:54:41 -07:00
error-injection: Add injectable error types
2018-01-12 17:33:38 -08:00
net: Extra '_get' in declaration of arch_get_platform_mac_address
2018-02-08 15:13:30 -05:00
f2fs: support inode creation time
2018-01-25 14:10:39 -08:00
fbdev: remove blackfin drivers
2018-03-26 15:56:44 +02:00
vfs, fdtable: Prevent bounds-check bypass via speculative execution
2018-01-30 21:54:32 +01:00
bpf: make unknown opcode handling more robust
2018-01-26 16:42:05 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-03-15 18:57:14 -07:00
sched/wait, fs/fscache: Convert wait_on_atomic_t() usage to the new wait_var_event() API
2018-03-20 08:23:21 +01:00
fscrypt: move fscrypt_symlink_data to fscrypt_private.h
2018-01-11 23:30:08 -05:00
fscrypt: remove 'ci' parameter from fscrypt_put_encryption_info()
2018-01-11 23:30:13 -05:00
fscrypt: remove 'ci' parameter from fscrypt_put_encryption_info()
2018-01-11 23:30:13 -05:00
mtd: nand: fsl_ifc: Read ECCSTAT0 and ECCSTAT1 registers for IFC 2.0
2018-03-21 10:22:28 +01:00
init_task out-of-lining
2018-01-29 09:08:34 -08:00
mm: use do_futex() instead of sys_futex() in mm_release()
2018-04-02 20:15:02 +02:00
device property: Constify device_get_match_data()
2018-02-12 10:41:11 +01:00
genhd: Fix BUG in blkdev_open()
2018-02-26 09:48:42 -07:00
include/linux/genl_magic_func.h: remove own BUILD_BUG_ON*() defines
2018-02-06 18:32:46 -08:00
hrtimer: Implement support for softirq based hrtimers
2018-01-16 09:51:22 +01:00
hugetlb, mbind: fall back to default policy if vma is NULL
2018-01-31 17:18:40 -08:00
perf/core: Implement fast breakpoint modification via _IOC_MODIFY_ATTRIBUTES
2018-03-13 15:24:02 +01:00
jailhouse: Provide detection for non-x86 systems
2018-03-08 12:30:37 +01:00
i2c: add 'set_sda' to bus_recovery_info
2018-01-16 00:04:19 +01:00
treewide: simplify Kconfig dependencies for removed archs
2018-03-26 15:55:57 +02:00
idr: Add documentation
2018-02-06 16:41:29 -05:00
tun/tap: use ptr_ring instead of skb_array
2018-01-09 10:56:10 -05:00
vhost_net: examine pointer types during un-producing
2018-03-09 12:02:59 -05:00
vlan: Fix vlan insertion for packets without ethernet header
2018-03-30 12:36:27 -04:00
devinet_ioctl(): take copyin/copyout to caller
2018-01-24 19:13:45 -05:00
x86/retpoline: Support retpoline builds with Clang
2018-02-20 11:17:58 +01:00
Expand INIT_STRUCT_PID and remove
2018-01-17 11:30:16 +00:00
iommu/vt-d: Add a check for 5-level paging support
2018-01-17 15:02:50 +01:00
headers: Drop two #included headers from <linux/interrupt.h>
2018-02-16 08:59:16 +01:00
kernel/resource: iomem_is_exclusive can be boolean
2018-02-06 18:32:47 -08:00
init_task out-of-lining
2018-01-29 09:08:34 -08:00
iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw}
2018-02-01 08:15:25 -05:00
jbd2: fix sphinx kernel-doc build warnings
2018-01-10 00:27:29 -05:00
jump_label: Disable jump labels in __exit code
2018-03-20 08:57:17 +01:00
kallsyms: let print_ip_sym() print raw addresses
2018-02-06 18:32:45 -08:00
x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable
2018-02-14 13:11:14 +01:00
Merge branch 'akpm' (patches from Andrew)
2018-02-22 10:45:46 -08:00
vfs/proc/kcore, x86/mm/kcore: Fix SMAP fault when dumping vsyscall user page
2018-02-13 09:15:58 +01:00
extable: Make init_kernel_text() global
2018-02-21 16:54:06 +01:00
kexec: move sys_kexec_load() prototype to syscalls.h
2018-04-02 20:16:15 +02:00
error-injection: Separate error-injection from kprobe
2018-01-12 17:33:38 -08:00
kvm: fix warning for non-x86 builds
2018-02-24 01:43:47 +01:00
libfdt: remove unnecessary include directive from <linux/libfdt.h>
2018-01-11 14:39:07 -06:00
acpi: nfit: add persistent memory control flag for nd_region
2018-02-01 15:01:15 -07:00
video/logo: remove obsolete logo files
2018-03-26 15:56:42 +02:00
livepatch: Remove immediate feature
2018-01-11 10:58:03 +01:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-30 10:44:56 -08:00
lib/lockref: __lockref_is_dead can be boolean
2018-02-06 18:32:47 -08:00
Revert "mm: page_alloc: skip over regions of invalid pfns where possible"
2018-03-22 17:07:01 -07:00
mm: memcontrol: fix NR_WRITEBACK leak in memcg and system stats
2018-02-21 15:35:42 -08:00
Drop a bunch of metag references
2018-02-23 14:29:59 +00:00
x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages
2018-02-13 16:25:06 +01:00
mm: remove reference to PG_buddy
2018-01-31 17:18:38 -08:00
mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks
2018-01-31 17:18:38 -08:00
x86/mm/32: Remove unused node_memmap_size_bytes() & CONFIG_NEED_NODE_MEMMAP_SIZE logic
2018-03-27 08:45:02 +02:00
kernel/module: module_is_live can be boolean
2018-02-06 18:32:47 -08:00
Merge branch 'linus' into locking/core, to pick up fixes and dependencies
2018-03-10 10:19:28 +01:00
sock_diag: request _diag module only when the family or proto has been registered
2018-03-12 11:03:42 -04:00
net/dim: Fix int overflow
2018-03-30 12:56:22 -04:00
bpf: fix null pointer deref in bpf_prog_test_run_xdp
2018-02-01 07:43:56 -08:00
netlink: extack: avoid parenthesized string constant warning
2018-01-15 15:15:23 -05:00
NFS: Fix nfsstat breakage due to LOOKUPP
2018-01-14 23:06:29 -05:00
nospec: Include <asm/barrier.h> dependency
2018-02-17 08:40:59 +01:00
NTB: Fix UB/bug in ntb_mw_get_align()
2018-01-28 22:17:24 -05:00
nubus: Add support for the driver model
2018-01-16 16:47:29 +01:00
nvme-pci: clean up SMBSZ bit definitions
2018-01-17 17:55:14 +01:00
of: change overlay apply input data from unflattened to FDT
2018-03-04 00:29:24 -08:00
DeviceTree updates for 4.16:
2018-02-01 10:57:45 -08:00
iommu: Clean up of_iommu_init_fn
2018-01-17 15:25:50 +01:00
PCI: Move of_irq_parse_and_map_pci() declaration under OF_IRQ
2018-03-05 18:03:20 -06:00
mtd: onenand: omap2: Configure driver from DT
2018-01-12 16:41:15 +01:00
mm: remove PG_highmem description
2018-01-31 17:18:40 -08:00
mm: get 7% more pages in a pagevec
2018-01-31 17:18:37 -08:00
PCI: Remove NULL device handling from PCI DMA API
2018-01-17 18:05:51 -06:00
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
2018-01-28 15:48:29 -06:00
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
2018-01-28 15:48:29 -06:00
Merge branch 'pci/spdx' into next
2018-02-01 11:40:07 -06:00
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
2018-01-28 15:48:29 -06:00
PCI: Make pci_wakeup_bus() & pci_bus_set_current_state() public
2018-03-13 22:57:36 +01:00
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
vga_switcheroo: Use device link for HDA controller
2018-03-13 22:58:09 +01:00
percpu_ref: Update doc to dissuade users from depending on internal RCU grace periods
2018-03-19 10:09:44 -07:00
perf/x86/pt, coresight: Clean up address filter structure
2018-03-29 16:07:22 +02:00
mm, dax: introduce pfn_t_special()
2018-01-19 16:50:53 -08:00
net: phy: Add general dummy stubs for MMD register access
2018-03-22 11:41:07 -04:00
pipe: reject F_SETPIPE_SZ with size over UINT_MAX
2018-02-06 18:32:47 -08:00
unify {de,}mangle_poll(), get rid of kernel-side POLL...
2018-02-11 14:37:22 -08:00
device property: Constify device_get_match_data()
2018-02-12 10:41:11 +01:00
firmware/psci: Expose SMCCC version through psci_ops
2018-02-06 22:54:11 +00:00
ptr_ring: prevent integer overflow when calculating size
2018-02-11 22:33:22 -05:00
fs/quota: add kernel_quotactl() helper; remove in-kernel call to syscall
2018-04-02 20:15:46 +02:00
idr: Remove idr_alloc_ext
2018-02-06 16:41:28 -05:00
rcu: Fix init_rcu_head() comment.
2018-02-20 16:12:26 -08:00
Char/Misc driver patches for 4.16-rc1
2018-02-01 10:31:17 -08:00
remoteproc: Drop dangling find_rsc_table dummies
2018-01-15 09:30:00 -08:00
rhashtable: Fix rhlist duplicates insertion
2018-03-07 10:44:02 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-01-31 14:31:10 -08:00
- New Drivers
2018-01-29 10:59:24 -08:00
lib/scatterlist: Fix chaining support in sgl_alloc_order()
2018-01-19 12:31:03 -07:00
sched/fair: Add util_est on top of PELT
2018-03-20 08:11:06 +01:00
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
locking/semaphore: Update the file path in documentation
2018-02-13 15:00:06 +01:00
seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro
2018-02-07 12:50:21 +02:00
TTY/Staging driver updates for 4.16-rc1
2018-02-01 09:46:00 -08:00
More ACPI updates for v4.16-rc1
2018-02-09 09:44:25 -08:00
set_memory.h: Provide set_memory_{en,de}crypted() stubs
2018-03-20 10:01:58 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-01-09 10:37:00 -05:00
shmem: rename functions that are memfd-related
2018-01-31 17:18:39 -08:00
signal: Remove unnecessary ifdefs now that there is only one struct siginfo
2018-01-12 14:34:49 -06:00
skb_array: use __ptr_ring_empty
2018-01-29 12:02:54 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2018-03-07 20:27:51 -05:00
usercopy: Allow strict enforcement of whitelists
2018-01-15 12:07:48 -08:00
usercopy: Prepare for usercopy whitelisting
2018-01-15 12:07:47 -08:00
usercopy: Prepare for usercopy whitelisting
2018-01-15 12:07:47 -08:00
net: socket: move check for forbid_cmsg_compat to __sys_...msg()
2018-04-02 20:15:15 +02:00
sound: Remove unused register_sound_midi() and co
2018-01-11 17:05:23 +01:00
lockdep: Convert some users to const
2018-01-18 11:56:49 +01:00
stddef.h: Introduce sizeof_field()
2018-01-15 12:07:46 -08:00
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
x86: hibernate: fix swsusp_arch_resume() prototype
2018-02-07 12:18:23 +01:00
mm, mlock, vmscan: no more skipping pagevecs
2018-02-21 15:35:42 -08:00
mm, page_vma_mapped: Drop faulty pointer arithmetics in check_pte()
2018-01-21 17:44:47 -08:00
dma/swiotlb: Remove swiotlb_{alloc,free}_coherent()
2018-03-20 10:01:59 +01:00
pci-v4.16-changes
2018-02-06 09:59:40 -08:00
locking: Introduce sync_core_before_usermode()
2018-02-05 21:34:50 +01:00
bpf: whitelist all syscalls for error injection
2018-04-02 20:16:21 +02:00
pipe, sysctl: remove pipe_proc_fn()
2018-02-06 18:32:47 -08:00
bpf: Adds field bpf_sock_ops_cb_flags to tcp_sock
2018-01-25 16:41:14 -08:00
This pull request updates the previous tee-drv-dynamic-shm-for-v4.16 pull
2018-01-11 18:05:06 -08:00
nohz: Allow to check if remote CPU tick is stopped
2018-02-21 09:49:08 +01:00
Merge branch 'perf/urgent' into perf/core, to pick up fixes
2018-02-17 11:39:28 +01:00
tty: make n_tty_read() always abort if hangup is in progress
2018-02-28 13:21:10 +01:00
doc: Fix typo in rcu_head comments
2018-02-20 16:10:25 -08:00
net: usbnet: fix potential deadlock on 32bit hosts
2018-03-07 11:46:39 -05:00
usercopy: WARN() on slab cache usercopy region violations
2018-01-15 12:07:48 -08:00
uuid: cleanup <uapi/linux/uuid.h>
2018-02-06 18:32:44 -08:00
Revert "module: Add retpoline tag to VERMAGIC"
2018-01-24 09:00:05 -08:00
vga_switcheroo: Use device link for HDA controller
2018-03-13 22:58:09 +01:00
mm: remove unused pgdat_reclaimable_pages()
2018-01-31 17:18:37 -08:00
sched/wait: Remove the wait_on_atomic_t() API
2018-03-20 08:23:24 +01:00
workqueue: remove unused cancel_work()
2018-03-13 13:37:42 -07:00
zswap: only save zswap header when necessary
2018-01-31 17:18:39 -08:00
