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Commit 5400c339 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge "Merge branch 'android11-5.4' into branch 'android11-5.4-lts'" into android11-5.4-lts

parents c980fbd6 16a567b6
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+12 −2
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# include OWNERS from the authoritative android-mainline branch
include kernel/common:android-mainline:/OWNERS
set noparent

# GKI Dr. No Enforcement is active on this branch. Approval of one of the Dr.
# No reviewers is required following a regular CodeReview+2 vote of a code
# reviewer.
#
# See the GKI release documentation (go/gki-dr-no) for further details.
#
# The expanded list of reviewers can be found at:
# https://android.googlesource.com/kernel/common/+/android-mainline/OWNERS_DrNo

include kernel/common:android-mainline:/OWNERS_DrNo

android/OWNERS

deleted100644 → 0
+0 −12
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# If we ever add another OWNERS above this directory, it's likely to be
# more permissive, so don't inherit from it
set noparent
adelva@google.com
maennich@google.com
saravanak@google.com
sspatil@google.com
tkjos@google.com
willmcvicker@google.com
# Downstream boards maintained directly in this manifest branch
per-file abi_gki_aarch64_cuttlefish = adelva@google.com, rammuthiah@google.com
per-file abi_gki_aarch64_goldfish = rkir@google.com
+102602 −106055

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@@ -2251,6 +2251,7 @@
  snd_card_free_when_closed
  snd_card_new
  snd_card_register
  snd_compr_use_pause_in_draining
  snd_ctl_add
  snd_ctl_boolean_mono_info
  snd_ctl_enum_info
+34 −0
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@@ -33,6 +33,7 @@
#define UINPUT_NAME		"uinput"
#define UINPUT_BUFFER_SIZE	16
#define UINPUT_NUM_REQUESTS	16
#define UINPUT_TIMESTAMP_ALLOWED_OFFSET_SECS 10

enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };

@@ -569,11 +570,40 @@ static int uinput_setup_device_legacy(struct uinput_device *udev,
	return retval;
}

/*
 * Returns true if the given timestamp is valid (i.e., if all the following
 * conditions are satisfied), false otherwise.
 * 1) given timestamp is positive
 * 2) it's within the allowed offset before the current time
 * 3) it's not in the future
 */
static bool is_valid_timestamp(const ktime_t timestamp)
{
	ktime_t zero_time;
	ktime_t current_time;
	ktime_t min_time;
	ktime_t offset;

	zero_time = ktime_set(0, 0);
	if (ktime_compare(zero_time, timestamp) >= 0)
		return false;

	current_time = ktime_get();
	offset = ktime_set(UINPUT_TIMESTAMP_ALLOWED_OFFSET_SECS, 0);
	min_time = ktime_sub(current_time, offset);

	if (ktime_after(min_time, timestamp) || ktime_after(timestamp, current_time))
		return false;

	return true;
}

static ssize_t uinput_inject_events(struct uinput_device *udev,
				    const char __user *buffer, size_t count)
{
	struct input_event ev;
	size_t bytes = 0;
	ktime_t timestamp;

	if (count != 0 && count < input_event_size())
		return -EINVAL;
@@ -588,6 +618,10 @@ static ssize_t uinput_inject_events(struct uinput_device *udev,
		if (input_event_from_user(buffer + bytes, &ev))
			return -EFAULT;

		timestamp = ktime_set(ev.input_event_sec, ev.input_event_usec * NSEC_PER_USEC);
		if (is_valid_timestamp(timestamp))
			input_set_timestamp(udev->dev, timestamp);

		input_event(udev->dev, ev.type, ev.code, ev.value);
		bytes += input_event_size();
		cond_resched();
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