linux-kernel - [PATCH 1/3] dummycon: only build module if there are users

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Message-Id: <20250225164436.56654-1-arnd@kernel.org>
Date: Tue, 25 Feb 2025 17:44:21 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Helge Deller <deller@....de>
Cc: Arnd Bergmann <arnd@...db.de>,
	linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] dummycon: only build module if there are users

From: Arnd Bergmann <arnd@...db.de>

Dummycon is used as a fallback conswitchp for vgacon and fbcon
in the VT code, and there are no references to it if all three
are disabled, so just leave it out of the kernel image for
configurations without those.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/video/console/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index bc31db6ef7d2..1c4263c164ce 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -47,8 +47,7 @@ config SGI_NEWPORT_CONSOLE
 	  card of your Indy.  Most people say Y here.
 
 config DUMMY_CONSOLE
-	bool
-	default y
+	def_bool VT || VGA_CONSOLE || FRAMEBUFFER_CONSOLE
 
 config DUMMY_CONSOLE_COLUMNS
 	int "Initial number of console screen columns"
-- 
2.39.5