Re: [PATCH] tee: optee: fix build error caused by recent optee tracepoints feature

[Guenter Roeck]

On Thu, Mar 25, 2021 at 12:06:01PM +0800, Jisheng Zhang wrote:
> If build kernel without "O=dir", below error will be seen:
> 
> In file included from drivers/tee/optee/optee_trace.h:67,
>                  from drivers/tee/optee/call.c:18:
> ./include/trace/define_trace.h:95:42: fatal error: ./optee_trace.h: No such file or directory
>    95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
>       |                                          ^
> compilation terminated.
> 
> Fix it by adding below line to Makefile:
> CFLAGS_call.o := -I$(src)
> 
> Tested with and without "O=dir", both can build successfully.
> 
> Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> Suggested-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Signed-off-by: Jisheng Zhang <Jisheng.Zhang@xxxxxxxxxxxxx>

Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
>  drivers/tee/optee/Makefile | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/tee/optee/Makefile b/drivers/tee/optee/Makefile
> index 56263ae3b1d7..3aa33ea9e6a6 100644
> --- a/drivers/tee/optee/Makefile
> +++ b/drivers/tee/optee/Makefile
> @@ -6,3 +6,6 @@ optee-objs += rpc.o
>  optee-objs += supp.o
>  optee-objs += shm_pool.o
>  optee-objs += device.o
> +
> +# for tracing framework to find optee_trace.h
> +CFLAGS_call.o := -I$(src)
> -- 
> 2.31.0
>