From 40f00e69af15af81174bd695a9104a2e517db6ed Mon Sep 17 00:00:00 2001
From: Shen Mintao <cx330.shen@autocore.ai>
Date: Thu, 6 Aug 2026 16:24:58 +0800
Subject: [PATCH] fix: support ARM32 ZLP kprobe arguments

Read the first kernel argument from ARM_r0 on 32-bit ARM, where regs_get_kernel_argument() is unavailable.

Fixes #82
---
 drivers/aic8800/aic_zlp_quirk/aic_zlp_quirk.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/aic8800/aic_zlp_quirk/aic_zlp_quirk.c b/drivers/aic8800/aic_zlp_quirk/aic_zlp_quirk.c
index 122bb68..ad35540 100644
--- a/drivers/aic8800/aic_zlp_quirk/aic_zlp_quirk.c
+++ b/drivers/aic8800/aic_zlp_quirk/aic_zlp_quirk.c
@@ -149,7 +149,11 @@ static int usb_submit_urb_pre_handler(struct kprobe *p, struct pt_regs *regs)
 
 	(void)p;
 
+#if defined(CONFIG_ARM)
+	urb = (struct urb *)regs->ARM_r0;
+#else
 	urb = (struct urb *)regs_get_kernel_argument(regs, 0);
+#endif
 	if (is_bluetooth_acl_endpoint(urb))
 		enable_zlp(urb);