From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm: Don't export internal module variables Date: Mon, 2 Jun 2014 17:07:35 +0200 Message-ID: <20140602150735.GS19050@phenom.ffwll.local> References: <1401384355-22519-1-git-send-email-daniel.vetter@ffwll.ch> <20140602080144.GE19050@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wi0-f173.google.com (mail-wi0-f173.google.com [209.85.212.173]) by gabe.freedesktop.org (Postfix) with ESMTP id 451F16E59C for ; Mon, 2 Jun 2014 08:07:43 -0700 (PDT) Received: by mail-wi0-f173.google.com with SMTP id bs8so4717116wib.0 for ; Mon, 02 Jun 2014 08:07:40 -0700 (PDT) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: David Herrmann Cc: Daniel Vetter , DRI Development List-Id: dri-devel@lists.freedesktop.org On Mon, Jun 02, 2014 at 12:08:39PM +0200, David Herrmann wrote: > Hi > > On Mon, Jun 2, 2014 at 10:01 AM, Daniel Vetter wrote: > > On Sun, Jun 01, 2014 at 02:04:45PM +0200, David Herrmann wrote: > >> Hi > >> > >> On Thu, May 29, 2014 at 7:25 PM, Daniel Vetter wrote: > >> > Drivers really have no business touching these. Noticed because > >> > exynose _did_ touch the vblank off delay, which could potentially > >> > affect other drivers. > >> > > >> > drm_debug is an exception since it's used in macros and inline > >> > functions. > >> > > >> > v2: Drop bonghits changes. Note to self: Don't submit patches > >> > before first coffee. > >> > > >> > Cc: Inki Dae > >> > Signed-off-by: Daniel Vetter > >> > --- > >> > drivers/gpu/drm/drm_stub.c | 4 ---- > >> > drivers/gpu/drm/exynos/exynos_drm_drv.c | 4 ---- > >> > drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 -- > >> > 3 files changed, 10 deletions(-) > >> > > >> > diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c > >> > index 3727ac8bc310..998782a88520 100644 > >> > --- a/drivers/gpu/drm/drm_stub.c > >> > +++ b/drivers/gpu/drm/drm_stub.c > >> > @@ -43,17 +43,13 @@ unsigned int drm_debug = 0; /* 1 to enable debug output */ > >> > EXPORT_SYMBOL(drm_debug); > >> > > >> > unsigned int drm_rnodes = 0; /* 1 to enable experimental render nodes API */ > >> > -EXPORT_SYMBOL(drm_rnodes); > >> > > >> > /* 1 to allow user space to request universal planes (experimental) */ > >> > unsigned int drm_universal_planes = 0; > >> > -EXPORT_SYMBOL(drm_universal_planes); > >> > > >> > unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ > >> > -EXPORT_SYMBOL(drm_vblank_offdelay); > >> > > >> > unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ > >> > -EXPORT_SYMBOL(drm_timestamp_precision); > >> > > >> > /* > >> > * Default to use monotonic timestamps for wait-for-vblank and page-flip > >> > diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c > >> > index 2d27ba23a6a8..d7c50b0da510 100644 > >> > --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c > >> > +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c > >> > @@ -38,8 +38,6 @@ > >> > #define DRIVER_MAJOR 1 > >> > #define DRIVER_MINOR 0 > >> > > >> > -#define VBLANK_OFF_DELAY 50000 > >> > - > >> > /* platform device pointer for eynos drm device. */ > >> > static struct platform_device *exynos_drm_pdev; > >> > > >> > @@ -109,8 +107,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) > >> > /* setup possible_clones. */ > >> > exynos_drm_encoder_setup(dev); > >> > > >> > - drm_vblank_offdelay = VBLANK_OFF_DELAY; > >> > >> You know that this is 5,000 by default and VBLANK_OFF_DELAY is 50,000? > >> Not sure whether that was a typo or was explicitly set this way. If > >> that change is intentional: > > > > Oops, didn't spot that, nice catch. git log says this was added to paper > > over a race in get/put_vblank in exynos. Wtf, imo even more reason to nuke > > this ... I've pimped the commit message a bit - still r-b? > > You mean: > > commit 52c68814cd7f3592292a02b890b5b8625e9069a7 > Author: Inki Dae > Date: Fri Dec 16 21:31:12 2011 +0900 > > drm/exynos: extend vblank off delay time. > > Yeah, that one doesn't make any sense. So this is still: Yup. > Reviewed-by: David Herrmann Thanks, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch