linux-kernel - [PATCH 0/6] video/logo: allow custom boot logo and simplify logic

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Message-Id: <20251230-custom-logo-v1-0-4736374569ee@kernel.org>
Date: Tue, 30 Dec 2025 23:19:59 +0100
From: Vincent Mailhol <mailhol@...nel.org>
To: Helge Deller <deller@....de>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Yoshinori Sato <ysato@...rs.sourceforge.jp>, Rich Felker <dalias@...c.org>, 
 John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc: linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 linux-kernel@...r.kernel.org, linux-sh@...r.kernel.org, 
 Vincent Mailhol <mailhol@...nel.org>
Subject: [PATCH 0/6] video/logo: allow custom boot logo and simplify logic

This series allows the user to replace the default kernel boot logo by
a custom one directly in the kernel configuration. This makes it
easier to customise the boot logo without the need to modify the
sources and allows such customisation to remain persistent after
applying the configuration to another version of the kernel.

Patch #1 and #2 are clean-up and preparation while patch #3 is the
main feature of this series: making the boot logo customisable.

While working on this, I realised that managing the logo file directly
in Kbuild allows us to simplify how we handle the different existing
variants of the Tux logo. This series thus ends with a clean-up which
moves all the logo selection logic to Kbuild, simplifying the Makefile
and C code.

Patch #4 and #5 do a tree-wide clean-up on the Kconfig symbols that
are to be removed in patch #6 and patch #6 simplify the logic as
explained above.

Signed-off-by: Vincent Mailhol <mailhol@...nel.org>
---
Vincent Mailhol (6):
      video/logo: remove orphan .pgm Makefile rule
      video/logo: add a type parameter to the logo makefile function
      video/logo: allow custom logo
      newport_con: depend on LOGO_LINUX_CLUT224 instead of LOGO_SGI_CLUT224
      sh: defconfig: remove CONFIG_LOGO_SUPERH_*
      video/logo: move logo selection logic to Kconfig

 arch/sh/configs/dreamcast_defconfig      |  2 -
 arch/sh/configs/ecovec24_defconfig       |  2 -
 arch/sh/configs/kfr2r09_defconfig        |  2 -
 arch/sh/configs/migor_defconfig          |  2 -
 arch/sh/configs/rts7751r2d1_defconfig    |  2 -
 arch/sh/configs/rts7751r2dplus_defconfig |  2 -
 arch/sh/configs/se7724_defconfig         |  2 -
 arch/sh/configs/se7780_defconfig         |  2 -
 arch/sh/configs/sh7785lcr_defconfig      |  3 --
 arch/sh/configs/urquell_defconfig        |  3 --
 drivers/video/console/newport_con.c      |  4 +-
 drivers/video/logo/Kconfig               | 84 ++++++++++++++++++--------------
 drivers/video/logo/Makefile              | 26 +++-------
 drivers/video/logo/logo.c                | 46 ++---------------
 include/linux/linux_logo.h               |  9 ----
 15 files changed, 61 insertions(+), 130 deletions(-)
---
base-commit: 8640b74557fc8b4c300030f6ccb8cd078f665ec8
change-id: 20251227-custom-logo-932df316a02c

Best regards,
-- 
Vincent Mailhol <mailhol@...nel.org>