From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- drivers/video/logo/logo.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 drivers/video/logo/logo.c (limited to 'drivers/video/logo/logo.c') diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c new file mode 100644 index 000000000..91535f884 --- /dev/null +++ b/drivers/video/logo/logo.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* + * Linux logo to be displayed on boot + * + * Copyright (C) 1996 Larry Ewing (lewing@isc.tamu.edu) + * Copyright (C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + * Copyright (C) 2001 Greg Banks + * Copyright (C) 2001 Jan-Benedict Glaw + * Copyright (C) 2003 Geert Uytterhoeven + */ + +#include +#include +#include + +#ifdef CONFIG_M68K +#include +#endif + +static bool nologo; +module_param(nologo, bool, 0); +MODULE_PARM_DESC(nologo, "Disables startup logo"); + +/* + * Logos are located in the initdata, and will be freed in kernel_init. + * Use late_init to mark the logos as freed to prevent any further use. + */ + +static bool logos_freed; + +static int __init fb_logo_late_init(void) +{ + logos_freed = true; + return 0; +} + +late_initcall_sync(fb_logo_late_init); + +/* logo's are marked __initdata. Use __ref to tell + * modpost that it is intended that this function uses data + * marked __initdata. + */ +const struct linux_logo * __ref fb_find_logo(int depth) +{ + const struct linux_logo *logo = NULL; + + if (nologo || logos_freed) + return NULL; + +#ifdef CONFIG_LOGO_LINUX_MONO + if (depth >= 1) + logo = &logo_linux_mono; +#endif + +#ifdef CONFIG_LOGO_LINUX_VGA16 + if (depth >= 4) + logo = &logo_linux_vga16; +#endif + +#ifdef CONFIG_LOGO_LINUX_CLUT224 + if (depth >= 8) + logo = &logo_linux_clut224; +#endif + + return logo; +} +EXPORT_SYMBOL_GPL(fb_find_logo); -- cgit v1.3.1