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/linux/Documentation/driver-api/driver-model/
H A Ddesign-patterns.rst24 struct foo {
31 struct foo *foo;
33 foo = devm_kzalloc(dev, sizeof(*foo), GFP_KERNEL);
34 if (!foo)
36 spin_lock_init(&foo->lock);
40 This will create an instance of struct foo in memory every time probe() is
46 pass around a pointer to struct foo like this::
50 struct foo *foo = arg;
56 struct foo *foo;
59 ret = request_irq(irq, foo_handler, 0, "foo", foo);
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/linux/samples/trace_events/
H A Dtrace-events-sample.h70 * Here it is trace_foo_bar(char *foo, int bar).
73 * Here it is simply "foo, bar".
85 * __field(int, foo)
87 * __entry->foo = 5;
94 * __field_struct(struct bar, foo)
102 * __array( char, foo, 10) is the same as saying: char foo[10];
106 * __entry->foo[0] = 'a';
108 * memcpy(__entry->foo, bar, 10);
119 * __dynamic_array( int, foo, bar) is similar to: int foo[bar];
124 * memcpy(__get_dynamic_array(foo), bar, 10);
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/linux/samples/kobject/
H A Dkset-example.c18 * Then tree kobjects are created and assigned to this kset, "foo", "baz",
31 int foo; member
40 ssize_t (*show)(struct foo_obj *foo, struct foo_attribute *attr, char *buf);
41 ssize_t (*store)(struct foo_obj *foo, struct foo_attribute *attr, const char *buf, size_t count);
57 struct foo_obj *foo; in foo_attr_show() local
60 foo = to_foo_obj(kobj); in foo_attr_show()
65 return attribute->show(foo, attribute, buf); in foo_attr_show()
77 struct foo_obj *foo; in foo_attr_store() local
80 foo = to_foo_obj(kobj); in foo_attr_store()
85 return attribute->store(foo, attribute, buf, len); in foo_attr_store()
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/linux/Documentation/translations/zh_CN/admin-guide/
H A Dbootconfig.rst46 foo.bar.baz = value1
47 foo.bar.qux.quux = value2
51 foo.bar {
58 foo.bar { baz = value1; qux.quux = value2 }
68 foo = bar, baz
69 foo = qux # !错误! 我们不可以重定义相同的关键字
73 foo = bar, baz
74 foo := qux
76 这样 ``foo`` 关键字的值就变成了 ``qux`` 。这对于通过添加（部分）自定义引导
81 foo = bar, baz
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/linux/Documentation/translations/zh_TW/admin-guide/
H A Dbootconfig.rst46 foo.bar.baz = value1
47 foo.bar.qux.quux = value2
51 foo.bar {
58 foo.bar { baz = value1; qux.quux = value2 }
68 foo = bar, baz
69 foo = qux # !錯誤! 我們不可以重定義相同的關鍵字
73 foo = bar, baz
74 foo := qux
76 這樣 ``foo`` 關鍵字的值就變成了 ``qux`` 。這對於通過添加（部分）自定義引導
81 foo = bar, baz
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/linux/tools/testing/selftests/bpf/prog_tests/
H A Dlinked_list.c88 "operation on bpf_list_head expects arg#1 bpf_list_node at offset=48 in struct foo, "
92 { "incorrect_node_off2", "arg#1 offset=0, but expected bpf_list_node at offset=48 in struct foo" },
311 foo_btf_id = btf__add_struct(btf, "foo", 20); in list_and_rb_node_same_struct()
312 if (!ASSERT_GT(foo_btf_id, 0, "btf__add_struct foo")) in list_and_rb_node_same_struct()
315 if (!ASSERT_OK(err, "btf__add_field foo::a")) in list_and_rb_node_same_struct()
318 if (!ASSERT_OK(err, "btf__add_field foo::b")) in list_and_rb_node_same_struct()
338 id = btf__add_struct(btf, "foo", 24); in test_btf()
339 if (!ASSERT_EQ(id, 5, "btf__add_struct foo")) in test_btf()
342 if (!ASSERT_OK(err, "btf__add_struct foo::a")) in test_btf()
345 if (!ASSERT_OK(err, "btf__add_struct foo in test_btf()
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H A Dcgroup_attach_override.c7 #define FOO "/foo" macro
8 #define BAR "/foo/bar/"
28 int drop_prog = -1, allow_prog = -1, foo = -1, bar = -1; in serial_test_cgroup_attach_override() local
41 foo = test__join_cgroup(FOO); in serial_test_cgroup_attach_override()
42 if (CHECK(foo < 0, "cgroup_join_foo", "cgroup setup failed\n")) in serial_test_cgroup_attach_override()
45 if (CHECK(bpf_prog_attach(drop_prog, foo, BPF_CGROUP_INET_EGRESS, in serial_test_cgroup_attach_override()
48 "attach prog to %s failed, errno=%d\n", FOO, errno)) in serial_test_cgroup_attach_override()
87 if (CHECK(bpf_prog_detach(foo, BPF_CGROUP_INET_EGRESS), in serial_test_cgroup_attach_override()
89 "detach prog from %s failed, errno=%d\n", FOO, errno)) in serial_test_cgroup_attach_override()
111 if (CHECK(!bpf_prog_detach(foo, BPF_CGROUP_INET_EGRESS), in serial_test_cgroup_attach_override()
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H A Dtask_under_cgroup.c9 #define FOO "/foo" macro
14 int ret, foo; in test_task_under_cgroup() local
17 foo = test__join_cgroup(FOO); in test_task_under_cgroup()
18 if (!ASSERT_OK(foo < 0, "cgroup_join_foo")) in test_task_under_cgroup()
27 skel->rodata->cgid = get_cgroup_id(FOO); in test_task_under_cgroup()
59 close(foo); in test_task_under_cgroup()
/linux/tools/memory-model/Documentation/
H A Daccess-marking.txt243 For example, ASSERT_EXCLUSIVE_ACCESS(foo) tells KCSAN that any
244 concurrent access to variable foo by any other CPU is an error, even
246 ASSERT_EXCLUSIVE_WRITER(foo) tells KCSAN that although it is OK for there
247 to be concurrent reads from foo from other CPUs, it is an error for some
248 other CPU to be concurrently writing to foo, even if that concurrent
269 For example, suppose a shared variable "foo" is read only while a
274 int foo;
280 foo = newval;
291 ret = foo;
298 pr_info("Current value of foo: %d\n", data_race(foo));
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/linux/drivers/gpu/drm/xe/tests/
H A Dxe_args_test.c12 #define foo X, Y, Z, Q in call_args_example() macro
13 #define bar COUNT_ARGS(foo) in call_args_example()
14 #define buz CALL_ARGS(COUNT_ARGS, foo) in call_args_example()
19 #undef foo in call_args_example()
26 #define foo X, Y, Z, Q in drop_first_arg_example() macro
27 #define bar CALL_ARGS(COUNT_ARGS, DROP_FIRST_ARG(foo)) in drop_first_arg_example()
31 #undef foo in drop_first_arg_example()
39 #define foo X, Y, Z, Q in first_arg_example() macro
40 #define bar FIRST_ARG(foo) in first_arg_example()
45 #undef foo in first_arg_example()
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/linux/tools/testing/selftests/ftrace/test.d/instances/
H A Dinstance-event.tc7 rmdir foo 2>/dev/null
29 mkdir foo 2> /dev/null
30 rmdir foo 2> /dev/null
36 cat foo/trace 1> /dev/null 2>&1
42 echo 1 > foo/events/sched/sched_switch/enable
69 mkdir foo
70 ls foo > /dev/null
71 rmdir foo
72 if [ -d foo ]; then
73 fail "foo still exists"
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/linux/rust/pin-init/
H A DREADME.md84 struct Foo {
90 let foo = pin_init!(Foo {
96 `foo` now is of the type [`impl PinInit<Foo>`]. We can now use any smart pointer that we like
97 (or just the stack) to actually initialize a `Foo`:
100 let foo: Result<Pin<Box<Foo>>, AllocError> = Box::pin_init(foo);
159 pub struct foo {
163 pub fn init_foo(ptr: *mut foo);
164 pub fn destroy_foo(ptr: *mut foo);
166 pub fn enable_foo(ptr: *mut foo, flags: u32) -> i32;
172 /// `foo` is always initialized
[all …]
/linux/tools/perf/tests/shell/
H A Dtest_uprobe_from_different_cu.sh26 perf probe -x ${temp_dir}/testfile -d foo || true
40 cat > ${temp_dir}/testfile-foo.h << EOF
47 extern int foo (int i, struct t *t);
50 cat > ${temp_dir}/testfile-foo.c << EOF
51 #include "testfile-foo.h"
54 foo (int i, struct t *t)
65 #include "testfile-foo.h"
78 return foo (3, &g);
82 gcc -g -Og -flto -c ${temp_dir}/testfile-foo.c -o ${temp_dir}/testfile-foo
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/linux/drivers/gpu/drm/xe/
H A Dxe_args.h28 * #define foo X,Y,Z,Q
29 * #define bar COUNT_ARGS(foo)
30 * #define buz CALL_ARGS(COUNT_ARGS, foo)
46 * #define foo X,Y,Z,Q
47 * #define bar CALL_ARGS(COUNT_ARGS, DROP_FIRST_ARG(foo))
63 * #define foo X,Y,Z,Q
64 * #define bar FIRST_ARG(foo)
82 * #define foo X,Y,Z,Q
83 * #define bar LAST_ARG(foo)
103 * #define foo X,Y,Z,Q
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/linux/tools/perf/Documentation/
H A Dcallchain-overhead-calculation.txt25 void foo(void) {
31 foo();
40 In this case 'foo' is a child of 'bar', and 'bar' is an immediate
41 child of 'main' so 'foo' also is a child of 'main'. In other words,
42 'main' is a parent of 'foo' and 'bar', and 'bar' is a parent of 'foo'.
44 Suppose all samples are recorded in 'foo' and 'bar' only. When it's
51 60.00% foo
53 --- foo
66 child functions (i.e. 'foo' an
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/linux/Documentation/admin-guide/
H A Dbootconfig.rst48 foo.bar.baz = value1
49 foo.bar.qux.quux = value2
53 foo.bar {
60 foo.bar { baz = value1; qux.quux = value2 }
71 foo = bar, baz
72 foo = qux # !ERROR! we can not re-define same key
77 foo = bar, baz
78 foo := qux
80 then, the ``qux`` is assigned to ``foo`` key. This is useful for
87 foo = bar, baz
[all …]
/linux/lib/
H A Dtest_debug_virtual.c16 struct foo { struct
20 static struct foo *foo; variable
32 foo = kzalloc(sizeof(*foo), GFP_KERNEL); in test_debug_virtual_init()
33 if (!foo) in test_debug_virtual_init()
36 pa = virt_to_phys(foo); in test_debug_virtual_init()
37 va = foo; in test_debug_virtual_init()
46 kfree(foo); in test_debug_virtual_exit()
/linux/fs/bcachefs/
H A Dsix.h23 * six_lock_read(&foo->lock);
24 * six_unlock_read(&foo->lock);
27 * six_lock_intent(&foo->lock);
28 * six_lock_write(&foo->lock);
29 * six_unlock_write(&foo->lock);
30 * six_unlock_intent(&foo->lock);
42 * six_lock_type(&foo->lock, SIX_LOCK_read);
43 * six_trylock_convert(&foo->lock, SIX_LOCK_read, SIX_LOCK_intent)
44 * six_lock_type(&foo->lock, SIX_LOCK_write);
45 * six_unlock_type(&foo->lock, SIX_LOCK_write);
[all …]
/linux/tools/testing/selftests/ftrace/test.d/dynevent/
H A Deprobes_syntax_errors.tc13 check_error 'e syscalls/sys_enter_openat ^foo' # BAD_ATTACH_ARG
17 check_error 'e:^foo.1/bar syscalls/sys_enter_openat' # BAD_GROUP_NAME
19 check_error 'e:foo/^12345678901234567890123456789012345678901234567890123456789012345 syscalls/sys_…
20 check_error 'e:foo/^bar.1 syscalls/sys_enter_openat' # BAD_EVENT_NAME
22 check_error 'e:foo/bar syscalls/sys_enter_openat arg=^dfd' # BAD_FETCH_ARG
23 check_error 'e:foo/bar syscalls/sys_enter_openat ^arg=$foo' # BAD_ATTACH_ARG
26 check_error 'e:foo/bar syscalls/sys_enter_openat if ^' # NO_EP_FILTER
/linux/Documentation/translations/zh_CN/core-api/
H A Dxarray.rst205 void foo_init(struct foo *foo)
207 xa_init_flags(&foo->array, XA_FLAGS_LOCK_BH);
210 int foo_store(struct foo *foo, unsigned long index, void *entry)
214 xa_lock_bh(&foo->array);
215 err = xa_err(__xa_store(&foo->array, index, entry, GFP_KERNEL));
217 foo->count++;
218 xa_unlock_bh(&foo->array);
223 void foo_erase(struct foo *foo, unsigned long index)
225 xa_lock(&foo->array);
226 __xa_erase(&foo->array, index);
[all …]
/linux/rust/kernel/
H A Dinit.rs45 //! struct Foo {
50 //! impl Foo {
52 //! pr_info!("Setting up foo\n");
56 //! let foo = pin_init!(Foo {
63 //! }).pin_chain(|foo| {
64 //! foo.setup();
75 //! # pub struct foo;
76 //! # pub unsafe fn init_foo(_ptr: *mut foo) {}
77 //! # pub unsafe fn destroy_foo(_ptr: *mut foo) {}
78 //! # pub unsafe fn enable_foo(_ptr: *mut foo, _flags: u32) -> i32 { 0 }
[all …]
/linux/tools/testing/selftests/bpf/progs/
H A Dlinked_list.c13 struct bpf_list_head head __contains(foo, node2);
22 private(C) struct bpf_list_head ghead_array[2] __contains(foo, node2);
23 private(C) struct bpf_list_head ghead_array_one[1] __contains(foo, node2);
31 struct foo *f; in list_push_pop()
41 bpf_obj_drop(container_of(n, struct foo, node2)); in list_push_pop()
50 bpf_obj_drop(container_of(n, struct foo, node2)); in list_push_pop()
67 f = container_of(n, struct foo, node2); in list_push_pop()
82 f = container_of(n, struct foo, node2); in list_push_pop()
93 bpf_obj_drop(container_of(n, struct foo, node2)); in list_push_pop()
101 bpf_obj_drop(container_of(n, struct foo, node2)); in list_push_pop()
[all …]
H A Dlinked_list_fail.c12 struct foo *f, *f1, *f2; \
239 f = bpf_obj_new(struct foo); in obj_drop_non_zero_off()
249 return bpf_obj_new(struct foo)->data; in new_null_ret()
255 bpf_obj_new(struct foo); in obj_new_acq()
262 struct foo *f; in use_after_drop()
290 struct foo *f; in direct_read_lock()
301 struct foo *f; in direct_write_lock()
313 struct foo *f; in direct_read_head()
324 struct foo *f; in direct_write_head()
336 struct foo *f; in direct_read_node()
[all …]
/linux/Documentation/driver-api/
H A Dpin-control.rst75 .name = "foo",
361 group "foo":
365 pinctrl_get_group_pins(pctl, "foo", &gpio_range.pins, &gpio_range.npins);
904 PIN_MAP_MUX_GROUP("uart", PINCTRL_STATE_DEFAULT, "pinctrl-foo",
906 PIN_MAP_CONFIGS_PIN("uart", PINCTRL_STATE_DEFAULT, "pinctrl-foo",
908 PIN_MAP_MUX_GROUP("uart", PINCTRL_STATE_SLEEP, "pinctrl-foo",
910 PIN_MAP_CONFIGS_PIN("uart", PINCTRL_STATE_SLEEP, "pinctrl-foo",
963 .dev_name = "foo-spi.0",
966 .ctrl_dev_name = "pinctrl-foo",
970 .dev_name = "foo-i2c.0",
[all …]
/linux/rust/pin-init/src/
H A Dlib.rs80 //! struct Foo {
86 //! let foo = pin_init!(Foo {
90 //! # let _ = Box::pin_init(foo);
93 //! `foo` now is of the type [`impl PinInit<Foo>`]. We can now use any smart pointer that we like
94 //! (or just the stack) to actually initialize a `Foo`:
104 //! # struct Foo {
110 //! # let foo = pin_init!(Foo {
114 //! let foo: Result<Pin<Box<Foo>>, AllocError> = Box::pin_init(foo);
183 //! pub struct foo {
187 //! pub fn init_foo(ptr: *mut foo);
[all …]

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