diff options
| author | Jiri Kosina <jkosina@suse.com> | 2025-03-26 13:42:07 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.com> | 2025-03-26 13:42:07 +0100 |
| commit | b3cc7428a32202936904b5b07cf9f135025bafd6 (patch) | |
| tree | d4a1a6180ac5939fccd92acd6f8d7d1388575c4a /kernel/bpf/sysfs_btf.c | |
| parent | db52926fb0be40e1d588a346df73f5ea3a34a4c6 (diff) | |
| parent | 01601fdd40ecf4467c8ae4d215dbb7d2a0599a2c (diff) | |
Merge branch 'for-6.15/amd_sfh' into for-linus
From: Mario Limonciello <mario.limonciello@amd.com>
Some platforms include a human presence detection (HPD) sensor. When
enabled and a user is detected a wake event will be emitted from the
sensor fusion hub that software can react to.
Example use cases are "wake from suspend on approach" or to "lock
when leaving".
This is currently enabled by default on supported systems, but users
can't control it. This essentially means that wake on approach is
enabled which is a really surprising behavior to users that don't
expect it.
Instead of defaulting to enabled add a sysfs knob that users can
use to enable the feature if desirable and set it to disabled by
default.
Diffstat (limited to 'kernel/bpf/sysfs_btf.c')
| -rw-r--r-- | kernel/bpf/sysfs_btf.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/kernel/bpf/sysfs_btf.c b/kernel/bpf/sysfs_btf.c index fedb54c94cdb8..81d6cf90584a7 100644 --- a/kernel/bpf/sysfs_btf.c +++ b/kernel/bpf/sysfs_btf.c @@ -12,24 +12,16 @@ extern char __start_BTF[]; extern char __stop_BTF[]; -static ssize_t -btf_vmlinux_read(struct file *file, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t len) -{ - memcpy(buf, __start_BTF + off, len); - return len; -} - static struct bin_attribute bin_attr_btf_vmlinux __ro_after_init = { .attr = { .name = "vmlinux", .mode = 0444, }, - .read = btf_vmlinux_read, + .read_new = sysfs_bin_attr_simple_read, }; struct kobject *btf_kobj; static int __init btf_vmlinux_init(void) { + bin_attr_btf_vmlinux.private = __start_BTF; bin_attr_btf_vmlinux.size = __stop_BTF - __start_BTF; if (bin_attr_btf_vmlinux.size == 0) |