Daniel Thompson
ed0bd721c9
hwrng: core - Improve description of the ->read() interface ...
Currently, very few RNG drivers support single byte reads using the
->read() interface. Of the 14 drivers in drivers/char/hw_random that
support this interface only three of these actually support max == 1.
The other behaviours vary between return 0, return 2, return 4 and return
-EIO).
This is not a problem in practice because the core hw_random code never
performs a read shorter than 16 bytes. The documentation for this function
already contrains the alignment of the buffer pointer, so let's also
guarantee that the buffer is at least as large as its alignment.
This constraint is intended to be the weakest guarantee neccessary to
allow driver writers to safely simplify their code.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-24 21:04:48 +08:00
wireless-drivers-next patches for 4.8
2016-07-25 11:09:19 -07:00
ceph: fix symbol versioning for ceph_monc_do_statfs
2016-07-28 15:32:53 +02:00
iio: st_sensors: harden interrupt handling
2016-07-02 20:40:15 +01:00
Input: of_touchscreen - add support for inverted / swapped axes
2016-07-15 14:50:53 -07:00
- ARM: GICv3 ITS emulation and various fixes. Removal of the old
2016-08-02 16:11:27 -04:00
mailbox: Add Broadcom PDC mailbox driver
2016-07-28 09:34:47 +05:30
pwm: Changes for v4.8-rc1
2016-08-06 00:01:33 -04:00
Round one of 4.8 code
2016-08-04 20:10:31 -04:00
Round one of 4.8 code
2016-08-04 20:10:31 -04:00
mmc: core: Allow hosts to specify non-support for MMC commands
2016-07-25 10:34:47 +02:00
This pull request contains only one notable change:
2016-07-15 17:06:26 -07:00
netfilter: x_tables: speed up jump target validation
2016-07-18 21:35:23 +02:00
netfilter: Convert FWINV<[foo]> macros and uses to NF_INVF
2016-07-03 10:55:07 +02:00
arm/perf: Fix hotplug state machine conversion
2016-07-20 09:57:34 +02:00
phy: Add set_mode callback
2016-07-04 17:19:22 +05:30
RTC for 4.8
2016-08-05 09:48:22 -04:00
Merge remote-tracking branches 'regulator/topic/fixed', 'regulator/topic/headers', 'regulator/topic/lp837x', 'regulator/topic/max8973' and 'regulator/topic/mt6323' into regulator-next
2016-07-20 18:02:03 +01:00
rtc: ds1286: move header to linux/rtc
2016-07-08 16:23:11 +02:00
Second Round of Renesas ARM Based SoC R-Car SYSC Updates for v4.8
2016-07-06 22:12:04 -07:00
spi: Split bus and I/O locking
2016-07-25 11:47:52 +01:00
Highlights:
2016-08-04 19:59:06 -04:00
Merge 4.7-rc6 into usb-next
2016-07-04 08:19:21 -07:00
sound updates for 4.8
2016-07-31 02:25:02 -07:00
ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*
2016-07-18 20:55:38 -04:00
ath9k: Allow configuration of LED polarity in platform data.
2016-07-08 17:01:14 +03:00
locking/atomic: Introduce inc/dec variants for the atomic_fetch_$op() API
2016-07-07 09:16:20 +02:00
block: fix bdi vs gendisk lifetime mismatch
2016-08-04 14:19:16 -06:00
block: fix bdi vs gendisk lifetime mismatch
2016-08-04 14:19:16 -06:00
mm: fix build warnings in <linux/compaction.h>
2016-07-26 16:19:19 -07:00
elf_fdpic_transfer_args_to_stack(): make it generic
2016-07-25 16:51:49 +10:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
include/linux/bitmap.h: cleanup
2016-08-04 08:50:07 -04:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
blk-mq: Introduce blk_mq_reinit_tagset
2016-07-08 08:38:49 -06:00
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
block/mm: make bdev_ops->rw_page() take a bool for read/write
2016-08-07 14:41:02 -06:00
bpf, events: fix offset in skb copy handler
2016-07-25 10:34:11 -07:00
Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-block
2016-07-26 15:03:07 -07:00
uapi: move forward declarations of internal structures
2016-08-02 17:31:41 -04:00
crypto: ccp - Let a v5 CCP provide the same function as v3
2016-08-09 18:47:16 +08:00
[media] cec-funcs.h: add missing 'reply' for short audio descriptor
2016-07-08 18:35:42 -03:00
[media] cec: split the timestamp into an rx and tx timestamp
2016-07-13 07:59:30 -03:00
The bulk of the changes are updates and fixes to existing clk provider
2016-07-30 11:20:02 -07:00
mm, compaction: simplify contended compaction handling
2016-07-28 16:07:41 -07:00
libnvdimm for 4.8
2016-07-28 17:38:16 -07:00
- ARM: GICv3 ITS emulation and various fixes. Removal of the old
2016-08-02 16:11:27 -04:00
workqueue: Convert to state machine callbacks
2016-07-14 09:34:43 +02:00
cpufreq: add cpufreq_driver_resolve_freq()
2016-07-21 14:46:08 +02:00
timers/core: Correct callback order during CPU hot plug
2016-07-28 18:56:22 +02:00
cpuidle: introduce CPU_PM_CPU_IDLE_ENTER macro for ARM{32, 64}
2016-07-21 23:29:38 +02:00
cpumask: fix code comment
2016-08-02 19:35:24 -04:00
crypto: skcipher - Remove top-level givcipher interface
2016-07-18 17:35:46 +08:00
dax: remote unused fault wrappers
2016-07-26 16:19:19 -07:00
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-08-07 10:01:14 -04:00
debugobjects.h: fix trivial kernel doc warning
2016-07-26 16:19:19 -07:00
libnvdimm for 4.8
2016-07-28 17:38:16 -07:00
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
dynamic_debug: add jump label support
2016-08-04 08:50:07 -04:00
Miscellaneous ia64 cleanups
2016-08-01 18:55:31 -04:00
block: do not merge requests without consulting with io scheduler
2016-07-20 21:35:12 -06:00
extable.h: add stddef.h so "NULL" definition is not implicit
2016-08-04 10:16:56 +09:30
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-07-24 00:53:32 -04:00
firmware: support loading into a pre-allocated buffer
2016-08-02 19:35:10 -04:00
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
block/mm: make bdev_ops->rw_page() take a bool for read/write
2016-08-07 14:41:02 -06:00
ftrace: Reduce size of function graph entries
2016-07-05 17:28:30 -04:00
mm, thp: remove __GFP_NORETRY from khugepaged and madvised allocations
2016-07-28 16:07:41 -07:00
hrtimer: Convert to hotplug state machine
2016-07-15 10:41:37 +02:00
mm, THP: clean up return value of madvise_free_huge_pmd
2016-07-28 16:07:41 -07:00
hwrng: core - Improve description of the ->read() interface
2016-08-24 21:04:48 +08:00
i2c: i2c-smbus: drop useless stubs
2016-07-22 09:07:02 +02:00
Revert "i2c: core: Add function for finding the bus speed from ACPI"
2016-07-19 05:57:23 +02:00
Input: i8042 - break load dependency between atkbd/psmouse and i8042
2016-07-27 14:20:09 -07:00
ieee802154: add ieee802154_skb_src_pan helper
2016-07-08 13:23:12 +02:00
treewide: replace obsolete _refok by __ref
2016-08-02 17:31:41 -04:00
Input: fix a double word "is is" in include/linux/input.h
2016-07-13 17:27:24 -07:00
genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors
2016-07-04 12:25:14 +02:00
iommu: Add apply_dm_region call-back to iommu-ops
2016-07-13 12:46:05 +02:00
ipc: delete "nr_ipc_ns"
2016-08-02 19:35:44 -04:00
ipmi: remove trydefaults parameter and default init
2016-07-27 10:24:38 -05:00
Merge branch 'irq/for-block' into irq/core
2016-07-04 12:26:05 +02:00
Merge branch 'irq/for-block' into irq/core
2016-07-04 12:26:05 +02:00
jump_label: remove bug.h, atomic.h dependencies for HAVE_JUMP_LABEL
2016-08-04 08:50:07 -04:00
mm/kasan: get rid of ->state in struct kasan_alloc_meta
2016-08-02 17:31:41 -04:00
kdb: use task_cpu() instead of task_thread_info()->cpu
2016-07-28 16:07:41 -07:00
dynamic_debug: only add header when used
2016-08-02 19:35:03 -04:00
xen: add steal_clock support on x86
2016-07-06 10:34:48 +01:00
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
thp: extract khugepaged from mm/huge_memory.c
2016-07-26 16:19:19 -07:00
mm: migrate: support non-lru movable page migration
2016-07-26 16:19:19 -07:00
KVM/ARM Changes for v4.8 - Take 2
2016-08-04 13:59:56 +02:00
leds: LED driver for TI LP3952 6-Channel Color LED
2016-07-18 08:46:09 +02:00
ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*
2016-07-18 20:55:38 -04:00
nfit, libnvdimm: allow an ARS scrub to be triggered on demand
2016-07-23 21:51:42 -07:00
lightnvm: make ppa_list const in nvm_set_rqd_list
2016-07-07 08:51:52 -06:00
hlist: Add hlist_is_singular_node() helper
2016-07-07 10:35:07 +02:00
qstr: constify dentry_init_security
2016-07-20 23:30:06 -04:00
bus: mvebu-mbus: fix __iomem on register pointers
2016-07-11 17:58:30 +02:00
mm/memblock.c: add new infrastructure to address the mem limit issue
2016-07-28 16:07:41 -07:00
mm: fix memcg stack accounting for sub-page stacks
2016-07-28 16:07:41 -07:00
memory-hotplug: more general validation of zone during online
2016-07-26 16:19:19 -07:00
mm: cleanup ifdef guards for vmem_altmap
2016-07-28 16:07:41 -07:00
net: phy: micrel: Add KSZ8041FTL fiber mode support
2016-07-15 11:53:02 -07:00
mm: fix build warnings in <linux/compaction.h>
2016-07-26 16:19:19 -07:00
mm, vmstat: add infrastructure for per-node vmstats
2016-07-28 16:07:41 -07:00
mm, vmscan: remove highmem_file_pages
2016-07-28 16:07:41 -07:00
mm, vmscan: move lru_lock to the node
2016-07-28 16:07:41 -07:00
include: mman: use bool instead of int for the return value of arch_validate_prot
2016-08-02 19:35:02 -04:00
include/linux/mmdebug.h: add VM_WARN which maps to WARN()
2016-07-26 16:19:19 -07:00
mm: track NR_KERNEL_STACK in KiB instead of number of stacks
2016-07-28 16:07:41 -07:00
modules: add ro_after_init support
2016-08-04 10:16:55 +09:30
net: ipmr/ip6mr: add support for keeping an entry age
2016-07-16 20:19:43 -07:00
net: ipmr/ip6mr: add support for keeping an entry age
2016-07-16 20:19:43 -07:00
genirq/msi: Make use of affinity aware allocations
2016-07-04 12:25:14 +02:00
Revert "vfs: add lookup_hash() helper"
2016-07-29 12:17:52 -07:00
pmem: kill __pmem address space
2016-07-12 19:25:38 -07:00
net/sched: Add match-all classifier hw offloading.
2016-07-24 23:11:59 -07:00
nfs/nfsd: Move useful bitfield ops to a commonly accessible place
2016-07-13 15:32:47 -04:00
NFS: Remove unused function nfs_revalidate_mapping_protected()
2016-07-05 19:11:05 -04:00
Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-08-06 09:49:02 -04:00
Revert "perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86"
2016-07-10 20:58:36 +02:00
nvme-rdma.h: Add includes for nvme rdma_cm negotiation
2016-07-08 08:38:49 -06:00
nvme.h: Add keep-alive opcode and identify controller attribute
2016-07-05 11:28:18 -06:00
sound updates for 4.8
2016-07-31 02:25:02 -07:00
FDT: Add a helper to get the subnode by given name
2016-07-06 10:34:46 +01:00
of_mdio: Abstract a general interface for phy connect
2016-07-16 21:32:58 -07:00
Linux 4.7-rc6
2016-07-08 18:14:03 -03:00
mm, oom: fortify task_will_free_mem()
2016-07-28 16:07:41 -07:00
page-flags: relax policy for PG_mappedtodisk and PG_reclaim
2016-07-26 16:19:19 -07:00
mm/page_owner: use stackdepot to store stacktrace
2016-07-26 16:19:19 -07:00
mm/page_owner: introduce split_page_owner and replace manual handling
2016-07-26 16:19:19 -07:00
block/mm: make bdev_ops->rw_page() take a bool for read/write
2016-08-07 14:41:02 -06:00
PCI changes for the v4.8 merge window:
2016-08-02 17:12:29 -04:00
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-29 13:55:30 -07:00
pmem: kill __pmem address space
2016-07-12 19:25:38 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2016-07-29 15:54:19 -07:00
printk: add kernel parameter to control writes to /dev/kmsg
2016-08-02 19:35:06 -04:00
Merge branch 'for-4.8/capture' into for-next
2016-07-25 16:23:39 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2016-07-29 15:54:19 -07:00
radix-tree: fix comment about "exceptional" bits
2016-08-02 19:35:08 -04:00
ratelimit: extend to print suppressed messages on release
2016-08-02 19:35:06 -04:00
Introduce rb_replace_node_rcu()
2016-07-06 10:51:14 +01:00
Introduce rb_replace_node_rcu()
2016-07-06 10:51:14 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-07-27 12:03:20 -07:00
rcu: Convert rcutree to hotplug state machine
2016-07-15 10:41:44 +02:00
rcu: Convert rcutree to hotplug state machine
2016-07-15 10:41:44 +02:00
Merge remote-tracking branches 'regmap/topic/bulk', 'regmap/topic/i2c', 'regmap/topic/iopoll', 'regmap/topic/irq' and 'regmap/topic/maintainers' into regmap-next
2016-07-15 13:44:47 +01:00
rapidio: modify for rev.3 specification changes
2016-08-02 19:35:37 -04:00
rapidio/switches: add driver for IDT gen3 switches
2016-08-02 19:35:38 -04:00
rapidio: modify for rev.3 specification changes
2016-08-02 19:35:37 -04:00
rmap: support file thp
2016-07-26 16:19:19 -07:00
signal: consolidate {TS,TLF}_RESTORE_SIGMASK code
2016-08-02 19:35:23 -04:00
qstr: constify dentry_init_security
2016-07-20 23:30:06 -04:00
Input: i8042 - break load dependency between atkbd/psmouse and i8042
2016-07-27 14:20:09 -07:00
x86/sfi: Enable enumeration of SD devices
2016-07-13 09:24:51 +02:00
shmem: split huge pages beyond i_size under memory pressure
2016-07-26 16:19:19 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-07-06 10:35:22 -07:00
mm: faster kmalloc_array(), kcalloc()
2016-07-26 16:19:19 -07:00
mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB
2016-07-28 16:07:41 -07:00
mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB
2016-07-28 16:07:41 -07:00
smp/cfd: Convert core to hotplug state machine
2016-07-15 10:41:43 +02:00
mm: remove reclaim and compaction retry approximations
2016-07-28 16:07:41 -07:00
dma-mapping: use unsigned long for dma_attrs
2016-08-04 08:50:07 -04:00
uapi: move forward declarations of internal structures
2016-08-02 17:31:41 -04:00
signal: consolidate {TS,TLF}_RESTORE_SIGMASK code
2016-08-02 19:35:23 -04:00
drivers: misc: ti-st: Use int instead of fuzzy char for callback status
2016-07-17 19:59:26 +02:00
timers/core: Convert to hotplug state machine
2016-07-15 10:41:42 +02:00
mm: convert zone_reclaim to node_reclaim
2016-07-28 16:07:41 -07:00
tpm: Factor out common startup code
2016-07-19 17:43:38 +03:00
mm: introduce fault_env
2016-07-26 16:19:19 -07:00
virtio: new feature to detect IOMMU device quirk
2016-08-01 21:44:52 +03:00
VSOCK: Introduce virtio_vsock_common.ko
2016-08-02 02:57:29 +03:00
mm: vmstat: account per-zone stalls and pages skipped during reclaim
2016-07-28 16:07:41 -07:00
mm: vmstat: replace __count_zone_vm_events with a zone id equivalent
2016-07-28 16:07:41 -07:00
sched/cputime: Reorganize vtime native irqtime accounting headers
2016-07-14 10:42:35 +02:00
new helper: wait_event_killable_exclusive()
2016-07-19 03:08:07 -04:00
watchdog: Improve description of min_hw_heartbeat_ms
2016-07-17 21:00:14 +02:00
workqueue: Convert to state machine callbacks
2016-07-14 09:34:43 +02:00
mm, page_alloc: consider dirtyable memory in terms of nodes
2016-07-28 16:07:41 -07:00
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
