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fix: support ARM32 ZLP kprobe arguments

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

Fixes #82

(cherry picked from commit 40f00e69af)
This commit is contained in:
Shen Mintao
2026-08-06 16:34:32 +08:00
parent 95d889d961
commit fffad12a26
1 changed files with 4 additions and 0 deletions
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drivers/aic8800/aic_zlp_quirk/aic_zlp_quirk.c
+4
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@@ -149,7 +149,11 @@ static int usb_submit_urb_pre_handler(struct kprobe *p, struct pt_regs *regs)
(void)p; (void)p;
#if defined(CONFIG_ARM)
urb = (struct urb *)regs->ARM_r0;
#else
urb = (struct urb *)regs_get_kernel_argument(regs, 0); urb = (struct urb *)regs_get_kernel_argument(regs, 0);
#endif
if (is_bluetooth_acl_endpoint(urb)) if (is_bluetooth_acl_endpoint(urb))
enable_zlp(urb); enable_zlp(urb);