From: Javier Martinez Canillas <javierm@redhat.com> To: linux-kernel@vger.kernel.org Cc: linux-fbdev@vger.kernel.org, "Thomas Zimmermann" <tzimmermann@suse.de>, "Helge Deller" <deller@gmx.de>, "Javier Martinez Canillas" <javierm@redhat.com>, "Noralf Trønnes" <noralf@tronnes.org>, dri-devel@lists.freedesktop.org, "Jaya Kumar" <jayalk@intworks.biz> Subject: [PATCH 1/3] fbdev: Remove unused struct fb_deferred_io .first_io field Date: Fri, 20 Jan 2023 13:08:20 +0100 [thread overview] Message-ID: <20230120120822.2536032-2-javierm@redhat.com> (raw) In-Reply-To: <20230120120822.2536032-1-javierm@redhat.com> This optional callback was added in the commit 1f45f9dbb392 ("fb_defio: add first_io callback") but it was never used by a driver. Let's remove it since it's unlikely that will be used after a decade that was added. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> --- drivers/video/fbdev/core/fb_defio.c | 4 ---- include/linux/fb.h | 1 - 2 files changed, 5 deletions(-) diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c index c730253ab85c..1b680742b7f3 100644 --- a/drivers/video/fbdev/core/fb_defio.c +++ b/drivers/video/fbdev/core/fb_defio.c @@ -157,10 +157,6 @@ static vm_fault_t fb_deferred_io_track_page(struct fb_info *info, unsigned long /* protect against the workqueue changing the page list */ mutex_lock(&fbdefio->lock); - /* first write in this cycle, notify the driver */ - if (fbdefio->first_io && list_empty(&fbdefio->pagereflist)) - fbdefio->first_io(info); - pageref = fb_deferred_io_pageref_get(info, offset, page); if (WARN_ON_ONCE(!pageref)) { ret = VM_FAULT_OOM; diff --git a/include/linux/fb.h b/include/linux/fb.h index 30183fd259ae..daf336385613 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -215,7 +215,6 @@ struct fb_deferred_io { struct mutex lock; /* mutex that protects the pageref list */ struct list_head pagereflist; /* list of pagerefs for touched pages */ /* callback */ - void (*first_io)(struct fb_info *info); void (*deferred_io)(struct fb_info *info, struct list_head *pagelist); }; #endif -- 2.39.0
WARNING: multiple messages have this Message-ID (diff)
From: Javier Martinez Canillas <javierm@redhat.com> To: linux-kernel@vger.kernel.org Cc: "Noralf Trønnes" <noralf@tronnes.org>, "Thomas Zimmermann" <tzimmermann@suse.de>, "Maxime Ripard" <mripard@kernel.org>, "Javier Martinez Canillas" <javierm@redhat.com>, "Daniel Vetter" <daniel@ffwll.ch>, "Helge Deller" <deller@gmx.de>, "Jaya Kumar" <jayalk@intworks.biz>, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org Subject: [PATCH 1/3] fbdev: Remove unused struct fb_deferred_io .first_io field Date: Fri, 20 Jan 2023 13:08:20 +0100 [thread overview] Message-ID: <20230120120822.2536032-2-javierm@redhat.com> (raw) In-Reply-To: <20230120120822.2536032-1-javierm@redhat.com> This optional callback was added in the commit 1f45f9dbb392 ("fb_defio: add first_io callback") but it was never used by a driver. Let's remove it since it's unlikely that will be used after a decade that was added. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> --- drivers/video/fbdev/core/fb_defio.c | 4 ---- include/linux/fb.h | 1 - 2 files changed, 5 deletions(-) diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c index c730253ab85c..1b680742b7f3 100644 --- a/drivers/video/fbdev/core/fb_defio.c +++ b/drivers/video/fbdev/core/fb_defio.c @@ -157,10 +157,6 @@ static vm_fault_t fb_deferred_io_track_page(struct fb_info *info, unsigned long /* protect against the workqueue changing the page list */ mutex_lock(&fbdefio->lock); - /* first write in this cycle, notify the driver */ - if (fbdefio->first_io && list_empty(&fbdefio->pagereflist)) - fbdefio->first_io(info); - pageref = fb_deferred_io_pageref_get(info, offset, page); if (WARN_ON_ONCE(!pageref)) { ret = VM_FAULT_OOM; diff --git a/include/linux/fb.h b/include/linux/fb.h index 30183fd259ae..daf336385613 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -215,7 +215,6 @@ struct fb_deferred_io { struct mutex lock; /* mutex that protects the pageref list */ struct list_head pagereflist; /* list of pagerefs for touched pages */ /* callback */ - void (*first_io)(struct fb_info *info); void (*deferred_io)(struct fb_info *info, struct list_head *pagelist); }; #endif -- 2.39.0
next prev parent reply other threads:[~2023-01-20 12:08 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-01-20 12:08 [PATCH 0/3] Fixes and cleanup for DRM fbdev emulation and deferred I/O Javier Martinez Canillas 2023-01-20 12:08 ` Javier Martinez Canillas 2023-01-20 12:08 ` Javier Martinez Canillas [this message] 2023-01-20 12:08 ` [PATCH 1/3] fbdev: Remove unused struct fb_deferred_io .first_io field Javier Martinez Canillas 2023-01-20 12:17 ` Thomas Zimmermann 2023-01-20 12:17 ` Thomas Zimmermann 2023-01-20 12:08 ` [PATCH 2/3] drm/fb-helper: Check fb_deferred_io_init() return value Javier Martinez Canillas 2023-01-20 12:08 ` Javier Martinez Canillas 2023-01-20 12:20 ` Thomas Zimmermann 2023-01-20 12:20 ` Thomas Zimmermann 2023-01-20 12:08 ` [PATCH 3/3] drm/fb-helper: Use a per-driver FB deferred I/O handler Javier Martinez Canillas 2023-01-20 12:08 ` Javier Martinez Canillas 2023-01-21 4:00 ` kernel test robot 2023-01-21 4:00 ` kernel test robot
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