linux-kernel - Re: [PATCH] drm/dp_mst: Fix build on systems with STACKTRACE

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Date:   Mon, 2 Dec 2019 16:20:23 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lyude Paul <lyude@...hat.com>
Subject: Re: [PATCH] drm/dp_mst: Fix build on systems with STACKTRACE_SUPPORT=n

On Mon, Dec 2, 2019 at 2:41 PM Guenter Roeck <linux@...ck-us.net> wrote:
> On systems with STACKTRACE_SUPPORT=n, we get:
>
> WARNING: unmet direct dependencies detected for STACKTRACE
>   Depends on [n]: STACKTRACE_SUPPORT
>   Selected by [y]:
>   - STACKDEPOT [=y]
>
> and build errors such as:
>
> m68k-linux-ld: kernel/stacktrace.o: in function `stack_trace_save':
> (.text+0x11c): undefined reference to `save_stack_trace'
>
> Add the missing deendency on STACKTRACE_SUPPORT.
>
> Fixes: 12a280c72868 ("drm/dp_mst: Add topology ref history tracking for debugging")
> Cc: Lyude Paul <lyude@...hat.com>
> Cc: Sean Paul <sean@...rly.run>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>

Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds