linux-kernel - Re: [PATCH] drm/rockchip: include rockchip_drm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <D3Z5JMTKPQIS.2M5O5DY0S4U9G@cknow.org>
Date: Fri, 06 Sep 2024 13:07:47 +0200
From: "Diederik de Haas" <didi.debian@...ow.org>
To: "Andy Yan" <andyshrk@....com>
Cc: "Min-Hua Chen" <minhuadotchen@...il.com>, "Sandy Huang"
 <hjc@...k-chips.com>, Heiko Stübner <heiko@...ech.de>,
 "Andy Yan" <andy.yan@...k-chips.com>, "Maarten Lankhorst"
 <maarten.lankhorst@...ux.intel.com>, "Maxime Ripard" <mripard@...nel.org>,
 "Thomas Zimmermann" <tzimmermann@...e.de>, "David Airlie"
 <airlied@...il.com>, "Daniel Vetter" <daniel@...ll.ch>,
 <dri-devel@...ts.freedesktop.org>, <linux-arm-kernel@...ts.infradead.org>,
 <linux-rockchip@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/rockchip: include rockchip_drm_drv.h

Hi,

On Fri Sep 6, 2024 at 11:50 AM CEST, Andy Yan wrote:
> At 2024-09-06 17:28:33, "Diederik de Haas" <didi.debian@...ow.org> wrote:
> >On Fri Sep 6, 2024 at 2:42 AM CEST, Andy Yan wrote:
> >> At 2024-09-06 06:38:50, "Min-Hua Chen" <minhuadotchen@...il.com> wrote:
> >> >Include rockchip_drm_drv.h to fix the follow sparse warning:
> >> >
> >> >drivers/gpu/drm/rockchip/rockchip_vop2_reg.c:502:24: sparse:
> >> >warning: symbol 'vop2_platform_driver' was not declared.
> >> >Should it be static?
> >> >
> >> >No functional change intended.
> >> >
> >> >Signed-off-by: Min-Hua Chen <minhuadotchen@...il.com>
> >> >---
> >> > drivers/gpu/drm/rockchip/rockchip_vop2_reg.c | 1 +
> >> > 1 file changed, 1 insertion(+)
> >> >
> >> >diff --git a/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
> >> >index 18efb3fe1c00..c678d1b0fd7c 100644
> >> >--- a/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
> >> >+++ b/drivers/gpu/drm/rockchip/rockchip_vop2_reg.c
> >> >@@ -14,6 +14,7 @@
> >> > #include <drm/drm_print.h>
> >> > 
> >> > #include "rockchip_drm_vop2.h"
> >> >+#include "rockchip_drm_drv.h"
> >> > 
> >>
> >> We already have a patch[0] include rockchip_drm_drv.h in rockchip_drm_vop2.h
> >>
> >> [0]https://patchwork.kernel.org/project/linux-rockchip/patch/20240904120238.3856782-3-andyshrk@163.com/ 
> >
> >Maybe I'm missing something, but this patch seems to fix an already
> >existing bug (which should have a Fixes tag?), which Andy also fixed
> >while implementing a different (and unrelated) feature?
>
> In fact, I don't know how to reproduce this compilation issue.

FWIW: I didn't see it either, but I assumed I was missing the right
context (i.e. patches) needed to trigger that warning.

> While implementing my feature, I happened to find that I need to
> include rockchip_drm_drv.h in rockchip_drm_vop2.h

Makes perfect sense :)
But if the warning is indeed valid, it should be fixed on its own (IMO).

Cheers,
  Diederik

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)