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Searched refs:buf (Results 1 – 24 of 24) sorted by relevance

/samples/bpf/
A Dtask_fd_query_user.c58 ret = read(fd, buf, sizeof(buf)); in bpf_find_probe_type()
80 ret = read(fd, buf, sizeof(buf)); in bpf_get_retprobe_bit()
250 CHECK_PERROR_RET(write(kfd, buf, strlen(buf)) < 0); in test_debug_fs_uprobe()
260 bytes = read(efd, buf, sizeof(buf)); in test_debug_fs_uprobe()
358 buf, sizeof(buf))); in main()
364 buf, sizeof(buf))); in main()
369 buf, sizeof(buf))); in main()
374 buf, sizeof(buf))); in main()
384 buf, sizeof(buf))); in main()
403 buf, sizeof(buf))); in main()
[all …]
A Dtracex6.bpf.c59 struct bpf_perf_event_value *val, buf; in BPF_KPROBE() local
67 error = bpf_perf_event_read_value(&counters, key, &buf, sizeof(buf)); in BPF_KPROBE()
73 *val = buf; in BPF_KPROBE()
75 bpf_map_update_elem(&values2, &key, &buf, BPF_NOEXIST); in BPF_KPROBE()
A Dxdp_router_ipv4_user.c35 static char buf[8192]; variable
67 buf_ptr = buf; in recv_msg()
264 char buf[8192]; in get_route_table() member
299 memset(buf, 0, sizeof(buf)); in get_route_table()
306 nh = (struct nlmsghdr *)buf; in get_route_table()
400 char buf[8192]; in get_arp_table() member
434 memset(buf, 0, sizeof(buf)); in get_arp_table()
441 nh = (struct nlmsghdr *)buf; in get_arp_table()
508 memset(buf, 0, sizeof(buf)); in monitor_routes_thread()
517 nh = (struct nlmsghdr *)buf; in monitor_routes_thread()
[all …]
A Dhbm.c95 static char buf[4097]; in read_trace_pipe2() local
98 sz = read(trace_fd, buf, sizeof(buf) - 1); in read_trace_pipe2()
100 buf[sz] = 0; in read_trace_pipe2()
101 puts(buf); in read_trace_pipe2()
103 fprintf(outf, "%s\n", buf); in read_trace_pipe2()
A Dcookie_uid_helper_example.c224 char buf; in udp_client() local
255 recv_len = recvfrom(s_rcv, &buf, sizeof(buf), 0, in udp_client()
263 printf("Message received: %c\n", buf); in udp_client()
/samples/hidraw/
A Dhid-example.c47 char buf[256]; in main() local
66 memset(buf, 0x0, sizeof(buf)); in main()
92 printf("Raw Name: %s\n", buf); in main()
115 buf[1] = 0xff; in main()
116 buf[2] = 0xff; in main()
117 buf[3] = 0xff; in main()
133 printf("%hhx ", buf[i]); in main()
139 buf[1] = 0x77; in main()
140 res = write(fd, buf, 2); in main()
149 res = read(fd, buf, 16); in main()
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/samples/vfs/
A Dmountinfo.c147 printf("%u %u %u:%u %s %s ", buf->mnt_id_old, buf->mnt_parent_id_old, in dump_mountinfo()
148 buf->sb_dev_major, buf->sb_dev_minor, in dump_mountinfo()
149 &buf->str[buf->mnt_root], in dump_mountinfo()
150 &buf->str[buf->mnt_point]); in dump_mountinfo()
151 show_mnt_attrs(buf->mnt_attr); in dump_mountinfo()
152 show_propagation(buf); in dump_mountinfo()
154 printf(" - %s", &buf->str[buf->fs_type]); in dump_mountinfo()
156 printf(".%s", &buf->str[buf->fs_subtype]); in dump_mountinfo()
158 printf(" %s ", &buf->str[buf->sb_source]); in dump_mountinfo()
162 show_sb_flags(buf->sb_flags); in dump_mountinfo()
[all …]
A Dtest-fsmount.c22 char buf[4096]; in check_messages() local
28 n = read(fd, buf, sizeof(buf)); in check_messages()
33 switch (buf[0]) { in check_messages()
35 fprintf(stderr, "Error: %*.*s\n", n, n, buf + 2); in check_messages()
38 fprintf(stderr, "Warning: %*.*s\n", n, n, buf + 2); in check_messages()
41 fprintf(stderr, "Info: %*.*s\n", n, n, buf + 2); in check_messages()
/samples/kfifo/
A Drecord-example.c71 char buf[100]; in testfunc() local
85 memset(buf, 'a' + i, i + 1); in testfunc()
86 kfifo_in(&test, buf, i + 1); in testfunc()
96 ret = kfifo_out_peek(&test, buf, sizeof(buf)); in testfunc()
98 printk(KERN_INFO "%.*s\n", ret, buf); in testfunc()
103 ret = kfifo_out(&test, buf, sizeof(buf)); in testfunc()
104 buf[ret] = '\0'; in testfunc()
105 printk(KERN_INFO "item = %.*s\n", ret, buf); in testfunc()
106 if (strcmp(buf, expected_result[i++])) { in testfunc()
129 ret = kfifo_from_user(&test, buf, count, &copied); in fifo_write()
[all …]
A Dbytestream-example.c54 unsigned char buf[6]; in testfunc() local
71 i = kfifo_out(&test, buf, 5); in testfunc()
72 printk(KERN_INFO "buf: %.*s\n", i, buf); in testfunc()
75 ret = kfifo_out(&test, buf, 2); in testfunc()
78 ret = kfifo_in(&test, buf, ret); in testfunc()
113 static ssize_t fifo_write(struct file *file, const char __user *buf, in fifo_write() argument
122 ret = kfifo_from_user(&test, buf, count, &copied); in fifo_write()
131 static ssize_t fifo_read(struct file *file, char __user *buf, in fifo_read() argument
140 ret = kfifo_to_user(&test, buf, count, &copied); in fifo_read()
A Dinttype-example.c54 int buf[6]; in testfunc() local
68 ret = kfifo_out(&test, buf, 2); in testfunc()
71 ret = kfifo_in(&test, buf, ret); in testfunc()
106 static ssize_t fifo_write(struct file *file, const char __user *buf, in fifo_write() argument
115 ret = kfifo_from_user(&test, buf, count, &copied); in fifo_write()
124 static ssize_t fifo_read(struct file *file, char __user *buf, in fifo_read() argument
133 ret = kfifo_to_user(&test, buf, count, &copied); in fifo_read()
/samples/kobject/
A Dkobject-example.c29 char *buf) in foo_show() argument
31 return sysfs_emit(buf, "%d\n", foo); in foo_show()
35 const char *buf, size_t count) in foo_store() argument
39 ret = kstrtoint(buf, 10, &foo); in foo_store()
55 char *buf) in b_show() argument
63 return sysfs_emit(buf, "%d\n", var); in b_show()
67 const char *buf, size_t count) in b_store() argument
71 ret = kstrtoint(buf, 10, &var); in b_store()
A Dkset-example.c54 char *buf) in foo_attr_show() argument
65 return attribute->show(foo, attribute, buf); in foo_attr_show()
74 const char *buf, size_t len) in foo_attr_store() argument
113 char *buf) in foo_show() argument
115 return sysfs_emit(buf, "%d\n", foo_obj->foo); in foo_show()
119 const char *buf, size_t count) in foo_store() argument
123 ret = kstrtoint(buf, 10, &foo_obj->foo); in foo_store()
139 char *buf) in b_show() argument
147 return sysfs_emit(buf, "%d\n", var); in b_show()
151 const char *buf, size_t count) in b_store() argument
[all …]
/samples/connector/
A Ducon.c51 char buf[128]; in netlink_send() local
56 nlh = (struct nlmsghdr *)buf; in netlink_send()
100 char buf[1024]; in main() local
137 memset(buf, 0, sizeof(buf)); in main()
166 memset(buf, 0, sizeof(buf)); in main()
168 data = (struct cn_msg *)buf; in main()
207 memset(buf, 0, sizeof(buf)); in main()
208 len = recv(s, buf, sizeof(buf), 0); in main()
214 reply = (struct nlmsghdr *)buf; in main()
/samples/seccomp/
A Dbpf-fancy.c34 char buf[256]; in main() local
48 JNE((unsigned long)buf, DENY), in main()
50 JGE(sizeof(buf), DENY), in main()
63 JEQ((unsigned long)buf, JUMP(&l, buf_len)), in main()
78 JLT(sizeof(buf), ALLOW), in main()
98 bytes = syscall(__NR_read, STDIN_FILENO, buf, sizeof(buf)-1); in main()
101 syscall(__NR_write, STDERR_FILENO, buf, bytes); in main()
A Dbpf-direct.c66 char *buf; in emulator() local
74 buf = (char *) ctx->uc_mcontext.gregs[REG_ARG1]; in emulator()
84 bytes = write(STDOUT_FILENO, buf, len); in emulator()
166 char buf[4096]; in main() local
174 bytes = syscall(__NR_read, STDIN_FILENO, buf, sizeof(buf)); in main()
176 syscall(__NR_write, STDOUT_FILENO, buf, bytes); in main()
A Duser-trap.c37 char buf[CMSG_SPACE(sizeof(int))] = {0}, c = 'c'; in send_fd() local
45 msg.msg_control = buf; in send_fd()
46 msg.msg_controllen = sizeof(buf); in send_fd()
68 char buf[CMSG_SPACE(sizeof(int))] = {0}, c = 'c'; in recv_fd() local
76 msg.msg_control = buf; in recv_fd()
77 msg.msg_controllen = sizeof(buf); in recv_fd()
/samples/vfio-mdev/
A Dmbochs.c167 struct dma_buf *buf; member
350 reg16 = *(u16 *)buf; in handle_mmio_write()
662 buf += filled; in mbochs_read()
722 buf += filled; in mbochs_write()
920 dmabuf->buf = NULL; in mbochs_release_dmabuf()
1025 if (IS_ERR(buf)) { in mbochs_dmabuf_export()
1031 dmabuf->buf = buf; in mbochs_dmabuf_export()
1177 if (!dmabuf->buf) in mbochs_get_gfx_dmabuf()
1182 if (!dmabuf->buf) in mbochs_get_gfx_dmabuf()
1318 if (dmabuf->buf) { in mbochs_close_device()
[all …]
A Dmdpy.c149 char *buf, u32 count) in handle_pci_cfg_write() argument
156 cfg_addr = *(u32 *)buf; in handle_pci_cfg_write()
191 memcpy(mdev_state->memblk, buf, count); in mdev_access()
193 memcpy(buf, mdev_state->memblk, count); in mdev_access()
320 if (copy_to_user(buf, &val, sizeof(val))) in mdpy_read()
332 if (copy_to_user(buf, &val, sizeof(val))) in mdpy_read()
344 if (copy_to_user(buf, &val, sizeof(val))) in mdpy_read()
353 buf += filled; in mdpy_read()
413 buf += filled; in mdpy_write()
629 char *buf) in resolution_show() argument
[all …]
A Dmtty.c311 u8 *buf, u32 count) in handle_pci_cfg_write() argument
367 u8 data = *buf; in handle_bar_write()
582 *buf = 0; in handle_bar_read()
593 *buf |= UART_IIR_RDI; in handle_bar_read()
608 if (*buf == 0) in handle_bar_read()
612 *buf |= 0xC0; in handle_bar_read()
642 *buf = lsr; in handle_bar_read()
714 if (!buf) in mdev_access()
1469 buf += filled; in mtty_read()
1529 buf += filled; in mtty_write()
[all …]
/samples/pidfd/
A Dpidfd-metadata.c87 char buf[4096] = { 0 }; in main() local
110 bytes = read(statusfd, buf, sizeof(buf)); in main()
112 bytes = write(STDOUT_FILENO, buf, bytes); in main()
/samples/check-exec/
A Dinc.c80 char buf[128] = {}; in interpret_stream() local
81 size_t buf_size = sizeof(buf); in interpret_stream()
96 buf_size = fread(buf, 1, buf_size - 1, script); in interpret_stream()
97 return interpret_buffer(buf, buf_size); in interpret_stream()
/samples/uhid/
A Duhid-example.c303 char buf[128]; in keyboard() local
306 ret = read(STDIN_FILENO, buf, sizeof(buf)); in keyboard()
316 switch (buf[i]) { in keyboard()
380 fprintf(stderr, "Invalid input: %c\n", buf[i]); in keyboard()
/samples/v4l/
A Dv4l2-pci-skeleton.c207 struct skel_buffer *buf = to_skel_buffer(vbuf); in buffer_queue() local
211 list_add_tail(&buf->list, &skel->buf_list); in buffer_queue()
221 struct skel_buffer *buf, *node; in return_all_buffers() local
225 list_for_each_entry_safe(buf, node, &skel->buf_list, list) { in return_all_buffers()
226 vb2_buffer_done(&buf->vb.vb2_buf, state); in return_all_buffers()
227 list_del(&buf->list); in return_all_buffers()

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