Chenghao Duan 7d7010f5f0 samples/ftrace: Adjust LoongArch register restore order in direct calls ... commit bb85d206be208bbf834883e948125a35ac59993a upstream. Ensure that in the ftrace direct call logic, the CPU register state (with ra = parent return address) is restored to the correct state after the execution of the custom trampoline function and before returning to the traced function. Additionally, guarantee the correctness of the jump logic for jr t0 (traced function address). Cc: stable@vger.kernel.org Fixes: 9cdc3b6a29 ("LoongArch: ftrace: Add direct call support") Reported-by: Youling Tang <tangyouling@kylinos.cn> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Chenghao Duan <duanchenghao@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2026-01-08 10:17:11 +01:00
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ftrace-direct-modify.c	samples/ftrace: Adjust LoongArch register restore order in direct calls	2026-01-08 10:17:11 +01:00
ftrace-direct-multi-modify.c	samples/ftrace: Adjust LoongArch register restore order in direct calls	2026-01-08 10:17:11 +01:00
ftrace-direct-multi.c	samples/ftrace: Adjust LoongArch register restore order in direct calls	2026-01-08 10:17:11 +01:00
ftrace-direct-too.c	samples/ftrace: Adjust LoongArch register restore order in direct calls	2026-01-08 10:17:11 +01:00
ftrace-direct.c	samples/ftrace: Adjust LoongArch register restore order in direct calls	2026-01-08 10:17:11 +01:00
ftrace-ops.c	samples: ftrace: Make some global variables static	2023-02-07 12:48:00 -05:00
Makefile	ftrace: Add sample with custom ops	2023-01-25 10:31:23 -05:00
sample-trace-array.c	tracing: samples: Initialize trace_array_printk() with the correct function	2025-05-12 13:07:22 -04:00
sample-trace-array.h	tracing: Sample module to demonstrate kernel access to Ftrace instances.	2019-11-22 19:41:08 -05:00