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Jani Nikula 3d03295a7e relay: remove unused buf_mapped and buf_unmapped callbacks 
Patch series "relay: cleanup and const callbacks", v2.

None of the relay users require the use of mutable structs for callbacks,
however the relay code does.  Instead of assigning default callbacks when
there is none, add callback wrappers to conditionally call the client
callbacks if available, and fall back to default behaviour (typically
no-op) otherwise.

This lets all relay users make their struct rchan_callbacks const data.

This series starts with a number of cleanups first based on Christoph's
feedback.

This patch (of 9):

No relay client uses the buf_mapped or buf_unmapped callbacks.  Remove
them.  This makes relay's vm_operations_struct close callback a dummy,
remove it as well.

Link: https://lkml.kernel.org/r/cover.1606153547.git.jani.nikula@intel.com
Link: https://lkml.kernel.org/r/c69fff6e0cd485563604240bbfcc028434983bec.1606153547.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2020-12-15 22:46:18 -08:00
..
bpf Networking updates for 5.11 2020-12-15 13:22:29 -08:00
cgroup Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
configs Input: gtco - remove driver 2020-12-09 17:47:36 -08:00
debug smp: Cleanup smp_call_function*() 2020-11-24 16:47:49 +01:00
dma swiotlb: remove the tbl_dma_addr argument to swiotlb_tbl_map_single 2020-11-02 10:10:39 -05:00
entry The new preemtible kmap_local() implementation: 2020-12-14 18:35:53 -08:00
events Perf updates: 2020-12-14 17:34:12 -08:00
gcov gcov: fix kernel-doc markup issue 2020-12-15 22:46:18 -08:00
irq Generic interrupt and irqchips subsystem: 2020-12-15 15:03:31 -08:00
kcsan kcsan: Fix encoding masks and regain address bit 2020-11-06 17:19:26 -08:00
livepatch kernel/: fix repeated words in comments 2020-10-16 11:11:19 -07:00
locking A moderate set of locking updates: 2020-12-14 17:27:47 -08:00
power Power management updates for 5.11-rc1 2020-12-15 16:30:31 -08:00
printk Scheduler updates: 2020-12-14 18:29:11 -08:00
rcu Scheduler updates: 2020-12-14 18:29:11 -08:00
sched Power management updates for 5.11-rc1 2020-12-15 16:30:31 -08:00
time Scheduler updates: 2020-12-14 18:29:11 -08:00
trace Networking updates for 5.11 2020-12-15 13:22:29 -08:00
.gitignore
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Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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Makefile ACPI updates for 5.11-rc1 2020-12-15 16:39:06 -08:00
acct.c kernel/acct.c: use #elif instead of #end and #elif 2020-12-15 22:46:15 -08:00
async.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
audit.c audit: Remove redundant null check 2020-08-26 09:10:39 -04:00
audit.h audit: change unnecessary globals into statics 2020-08-17 20:26:58 -04:00
audit_fsnotify.c fsnotify: create method handle_inode_event() in fsnotify_operations 2020-07-27 23:25:50 +02:00
audit_tree.c \n 2020-08-06 19:29:51 -07:00
audit_watch.c fsnotify: create method handle_inode_event() in fsnotify_operations 2020-07-27 23:25:50 +02:00
auditfilter.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
auditsc.c audit: Migrate to use SYSCALL_WORK flag 2020-11-16 21:53:16 +01:00
backtracetest.c treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD() 2020-07-30 11:15:58 -07:00
bounds.c
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capability.c LSM: Signal to SafeSetID when setting group IDs 2020-10-13 09:17:34 -07:00
compat.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
configs.c
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context_tracking.c context_tracking: Ensure that the critical path cannot be instrumented 2020-06-11 15:14:36 +02:00
cpu.c Scheduler updates: 2020-12-14 18:29:11 -08:00
cpu_pm.c notifier: Fix broken error handling pattern 2020-09-01 09:58:03 +02:00
crash_core.c kdump: append uts_namespace.name offset to VMCOREINFO 2020-12-15 22:46:18 -08:00
crash_dump.c
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cred.c
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delayacct.c
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dma.c
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exec_domain.c
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exit.c Merge branch 'linus' into sched/core, to resolve semantic conflict 2020-11-27 11:10:50 +01:00
extable.c
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fail_function.c fail_function: Remove a redundant mutex unlock 2020-11-19 11:58:16 -08:00
fork.c Networking updates for 5.11 2020-12-15 13:22:29 -08:00
freezer.c
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futex.c Merge branch 'locking/rwsem' 2020-12-09 17:08:45 +01:00
gen_kheaders.sh
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groups.c LSM: Signal to SafeSetID when setting group IDs 2020-10-13 09:17:34 -07:00
hung_task.c kernel/hung_task.c: make type annotations consistent 2020-11-02 12:14:19 -08:00
iomem.c
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irq_work.c irq_work: Optimize irq_work_single() 2020-11-24 16:47:49 +01:00
jump_label.c kernel/: fix repeated words in comments 2020-10-16 11:11:19 -07:00
kallsyms.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
kcmp.c
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kcov.c kernel: make kcov_common_handle consider the current context 2020-11-02 18:00:20 -08:00
kexec.c LSM: Introduce kernel_post_load_data() hook 2020-10-05 13:37:03 +02:00
kexec_core.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
kexec_elf.c
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kexec_file.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
kexec_internal.h
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kheaders.c
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kmod.c kmod: remove redundant "be an" in the comment 2020-08-12 10:58:01 -07:00
kprobes.c Merge branch 'linus' into perf/kprobes 2020-11-07 13:18:49 +01:00
ksysfs.c
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kthread.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
latencytop.c
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module-internal.h
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module.c bpf: Keep module's btf_data_size intact after load 2020-12-03 17:38:20 -08:00
module_signature.c
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module_signing.c
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notifier.c notifier: Fix broken error handling pattern 2020-09-01 09:58:03 +02:00
nsproxy.c fixes-v5.11 2020-12-14 16:40:27 -08:00
padata.c padata: fix possible padata_works_lock deadlock 2020-09-04 17:51:55 +10:00
panic.c panic: don't dump stack twice on warn 2020-11-14 11:26:04 -08:00
params.c params: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
pid.c fixes-v5.11 2020-12-14 16:40:27 -08:00
pid_namespace.c fixes-v5.11 2020-12-14 16:40:27 -08:00
profile.c
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ptrace.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
range.c kernel.h: split out min()/max() et al. helpers 2020-10-16 11:11:19 -07:00
reboot.c Merge branches 'pm-sleep', 'pm-acpi', 'pm-domains' and 'powercap' 2020-12-15 15:26:14 +01:00
regset.c regset: kill ->get() 2020-07-27 14:31:12 -04:00
relay.c relay: remove unused buf_mapped and buf_unmapped callbacks 2020-12-15 22:46:18 -08:00
resource.c resource: Simplify region_intersects() by reducing conditionals 2020-11-17 18:06:28 +01:00
resource_kunit.c resource: provide meaningful MODULE_LICENSE() in test suite 2020-11-25 18:52:35 +01:00
rseq.c
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scftorture.c scftorture: Add full-test stutter capability 2020-11-06 17:13:56 -08:00
scs.c scs: switch to vmapped shadow stacks 2020-12-01 10:30:28 +00:00
seccomp.c A set of updates for entry/exit handling: 2020-12-14 17:13:53 -08:00
signal.c A set of updates for entry/exit handling: 2020-12-14 17:13:53 -08:00
smp.c Merge branch 'linus' into sched/core, to resolve semantic conflict 2020-11-27 11:10:50 +01:00
smpboot.c
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smpboot.h
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softirq.c irq: Call tick_irq_enter() inside HARDIRQ_OFFSET 2020-12-02 20:20:05 +01:00
stackleak.c stackleak: let stack_erasing_sysctl take a kernel pointer buffer 2020-09-19 13:13:39 -07:00
stacktrace.c stacktrace: Remove reliable argument from arch_stack_walk() callback 2020-09-18 14:24:16 +01:00
static_call.c static_call: Fix return type of static_call_init 2020-10-02 21:18:25 +02:00
stop_machine.c Merge branch 'linus' into sched/core, to resolve semantic conflict 2020-11-27 11:10:50 +01:00
sys.c kernel: Implement selective syscall userspace redirection 2020-12-02 15:07:56 +01:00
sys_ni.c mm/madvise: introduce process_madvise() syscall: an external memory hinting API 2020-10-18 09:27:10 -07:00
sysctl-test.c
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sysctl.c rcu: Panic after fixed number of stalls 2020-11-19 19:37:16 -08:00
task_work.c Merge branch 'core/urgent' into core/entry 2020-11-04 18:14:52 +01:00
taskstats.c treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
test_kprobes.c
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torture.c rcutorture: Make stutter_wait() caller restore priority 2020-11-06 17:13:54 -08:00
tracepoint.c tracepoints: Migrate to use SYSCALL_WORK flag 2020-11-16 21:53:15 +01:00
tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c usermodehelper: reset umask to default before executing user process 2020-10-06 10:31:52 -07:00
up.c
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user-return-notifier.c
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user.c user: Use generic ns_common::count 2020-08-19 14:14:12 +02:00
user_namespace.c fixes-v5.11 2020-12-14 16:40:27 -08:00
usermode_driver.c umd: Stop using split_argv 2020-07-07 11:58:59 -05:00
utsname.c uts: Use generic ns_common::count 2020-08-19 14:13:20 +02:00
utsname_sysctl.c
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watch_queue.c watch_queue: Limit the number of watches a user can hold 2020-08-17 09:39:18 -07:00
watchdog.c kernel/watchdog: fix watchdog_allowed_mask not used warning 2020-11-14 11:26:03 -08:00
watchdog_hld.c
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workqueue.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
workqueue_internal.h
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