linux-kernel - [PATCH 26/33] fbdev: remove FBINFO_MISC_USEREVENT around fb

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Message-Id: <20190528090304.9388-27-daniel.vetter@ffwll.ch>
Date:   Tue, 28 May 2019 11:02:57 +0200
From:   Daniel Vetter <daniel.vetter@...ll.ch>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     DRI Development <dri-devel@...ts.freedesktop.org>,
        Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
        linux-fbdev@...r.kernel.org,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Yisheng Xie <ysxie@...mail.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Peter Rosin <peda@...ntia.se>,
        Mikulas Patocka <mpatocka@...hat.com>,
        Rob Clark <robdclark@...il.com>
Subject: [PATCH 26/33] fbdev: remove FBINFO_MISC_USEREVENT around fb_blank

With the recursion broken in the previous patch we can drop the
FBINFO_MISC_USEREVENT flag around calls to fb_blank - recursion
prevention was it's only job.

Signed-off-by: Daniel Vetter <daniel.vetter@...el.com>
Reviewed-by: Sam Ravnborg <sam@...nborg.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc: Hans de Goede <hdegoede@...hat.com>
Cc: Yisheng Xie <ysxie@...mail.com>
Cc: "Michał Mirosław" <mirq-linux@...e.qmqm.pl>
Cc: Peter Rosin <peda@...ntia.se>
Cc: Mikulas Patocka <mpatocka@...hat.com>
Cc: Rob Clark <robdclark@...il.com>
---
 drivers/video/fbdev/core/fbcon.c   | 5 ++---
 drivers/video/fbdev/core/fbmem.c   | 3 ---
 drivers/video/fbdev/core/fbsysfs.c | 2 --
 3 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index a4617067ff24..b5ee89f16d6c 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2386,9 +2386,8 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
 			fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW);
 			ops->cursor_flash = (!blank);
 
-			if (!(info->flags & FBINFO_MISC_USEREVENT))
-				if (fb_blank(info, blank))
-					fbcon_generic_blank(vc, info, blank);
+			if (fb_blank(info, blank))
+				fbcon_generic_blank(vc, info, blank);
 		}
 
 		if (!blank)
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index d6713dce9e31..25ae466ba593 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1194,10 +1194,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 	case FBIOBLANK:
 		console_lock();
 		lock_fb_info(info);
-		info->flags |= FBINFO_MISC_USEREVENT;
 		ret = fb_blank(info, arg);
-		info->flags &= ~FBINFO_MISC_USEREVENT;
-
 		/* might again call into fb_blank */
 		fbcon_fb_blanked(info, arg);
 		unlock_fb_info(info);
diff --git a/drivers/video/fbdev/core/fbsysfs.c b/drivers/video/fbdev/core/fbsysfs.c
index 252d4f52d2a5..882b471d619e 100644
--- a/drivers/video/fbdev/core/fbsysfs.c
+++ b/drivers/video/fbdev/core/fbsysfs.c
@@ -310,9 +310,7 @@ static ssize_t store_blank(struct device *device,
 
 	arg = simple_strtoul(buf, &last, 0);
 	console_lock();
-	fb_info->flags |= FBINFO_MISC_USEREVENT;
 	err = fb_blank(fb_info, arg);
-	fb_info->flags &= ~FBINFO_MISC_USEREVENT;
 	/* might again call into fb_blank */
 	fbcon_fb_blanked(fb_info, arg);
 	console_unlock();
-- 
2.20.1