linux-kernel - Re: linux-next: build failure after merge of the kspp tree

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Date:   Tue, 25 Jan 2022 10:49:38 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the kspp tree

On Tue, 25 Jan 2022 23:31:54 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Could you try this patch?
> 
> >From 2982ba01367ec1f746a4f128512436e5325a7f9d Mon Sep 17 00:00:00 2001  
> From: Masami Hiramatsu <mhiramat@...nel.org>
> Date: Tue, 25 Jan 2022 23:19:30 +0900
> Subject: [PATCH] tracing: Avoid -Warray-bounds warning for __rel_loc macro
> 
> Since -Warray-bounds checks the destination size from the
> type of given pointer, __assign_rel_str() macro gets warned
> because it passes the pointer to the 'u32' field instead of
> 'trace_event_raw_*' data structure.
> Pass the data address calculated from the 'trace_event_raw_*'
> instead of 'u32' __rel_loc field.
> 
> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Cc: Kees Cook <keescook@...omium.org>

If this works, I'll add it instead of the one that just turns it off it
__CHECKER__ is defined.

Can you please let me know if it fixes the issue for you. I have a test run
waiting on it.

Thanks,

-- Steve