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misc: vehicle: modify netlink nlmsg size

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Change-Id: Ie40ffd08a78e45437a33749ac38fc8590a506d29
Signed-off-by: Tom Song <tom.song@rock-chips.com>
This commit is contained in:
Tom Song
2025-08-04 16:20:24 +08:00
committed by Tao Huang
parent 27e40a2c2f
commit 59904137bc
2 changed files with 10 additions and 3 deletions
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11
drivers/misc/vehicle/vehicle_core.c
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@@ -117,7 +117,9 @@ void vehicle_set_property(u16 prop, u8 index, u32 value, u32 param)
{
char *buffer;
buffer = kmalloc(128, GFP_KERNEL);
buffer = kmalloc(NLMSG_SIZE, GFP_KERNEL);
if (!buffer)
return;
pr_debug("%s: prop %d, index %d, value %d\n", __func__, prop, index, value);
property_encode.value = value;
switch (prop) {
@@ -240,7 +242,7 @@ void vehicle_set_property(u16 prop, u8 index, u32 value, u32 param)
pb_ostream_t stream;
stream = pb_ostream_from_buffer(buffer, 128);
stream = pb_ostream_from_buffer(buffer, NLMSG_SIZE);
emulator_EmulatorMessage send_message = {};
@@ -272,7 +274,9 @@ static void netlink_rcv_msg(struct sk_buff *skb)
int i;
emulator_EmulatorMessage emulator_message;
buffer = kmalloc(128, GFP_KERNEL);
buffer = kmalloc(NLMSG_SIZE, GFP_KERNEL);
if (!buffer)
return;
if (skb->len >= nlmsg_total_size(0)) {
nlh = nlmsg_hdr(skb);
g_user_pid = nlh->nlmsg_pid;
@@ -281,6 +285,7 @@ static void netlink_rcv_msg(struct sk_buff *skb)
if (umsg) {
for (i = 0; i < len; i++)
pr_debug("%s raw byte %d %d\n", __func__, i, umsg[i]);
len = (len > NLMSG_SIZE) ? NLMSG_SIZE : len;
memcpy(buffer, umsg, len);
pb_istream_t stream = pb_istream_from_buffer(buffer, len);

2
drivers/misc/vehicle/vehicle_core.h
View File

@@ -339,6 +339,8 @@ struct hw_prop_ops {
*/
#define kMixedTypePropertyForTest 568332561
#define NLMSG_SIZE 1024
/*vehicle_event_type: stateType in command VSTATE*/
enum vehicle_event_type {
VEHICLE_AC = 0,