cregit-Linux how code gets into the kernel

Release 4.17 drivers/video/logo/logo.c

/*
 *  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 <gnb@alphalink.com.au>
 *  Copyright (C) 2001 Jan-Benedict Glaw <jbglaw@lug-owl.de>
 *  Copyright (C) 2003 Geert Uytterhoeven <geert@linux-m68k.org>
 */

#include <linux/linux_logo.h>
#include <linux/stddef.h>
#include <linux/module.h>

#ifdef CONFIG_M68K
#include <asm/setup.h>
#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; }

Contributors

PersonTokensPropCommitsCommitProp
Tomi Valkeinen16100.00%1100.00%
Total16100.00%1100.00%

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; if (depth >= 1) { #ifdef CONFIG_LOGO_LINUX_MONO /* Generic Linux logo */ logo = &logo_linux_mono; #endif #ifdef CONFIG_LOGO_SUPERH_MONO /* SuperH Linux logo */ logo = &logo_superh_mono; #endif } if (depth >= 4) { #ifdef CONFIG_LOGO_LINUX_VGA16 /* Generic Linux logo */ logo = &logo_linux_vga16; #endif #ifdef CONFIG_LOGO_SUPERH_VGA16 /* SuperH Linux logo */ logo = &logo_superh_vga16; #endif } if (depth >= 8) { #ifdef CONFIG_LOGO_LINUX_CLUT224 /* Generic Linux logo */ logo = &logo_linux_clut224; #endif #ifdef CONFIG_LOGO_DEC_CLUT224 /* DEC Linux logo on MIPS/MIPS64 or ALPHA */ logo = &logo_dec_clut224; #endif #ifdef CONFIG_LOGO_MAC_CLUT224 /* Macintosh Linux logo on m68k */ if (MACH_IS_MAC) logo = &logo_mac_clut224; #endif #ifdef CONFIG_LOGO_PARISC_CLUT224 /* PA-RISC Linux logo */ logo = &logo_parisc_clut224; #endif #ifdef CONFIG_LOGO_SGI_CLUT224 /* SGI Linux logo on MIPS/MIPS64 */ logo = &logo_sgi_clut224; #endif #ifdef CONFIG_LOGO_SUN_CLUT224 /* Sun Linux logo */ logo = &logo_sun_clut224; #endif #ifdef CONFIG_LOGO_SUPERH_CLUT224 /* SuperH Linux logo */ logo = &logo_superh_clut224; #endif } return logo; }

Contributors

PersonTokensPropCommitsCommitProp
James Simmons16792.27%222.22%
Randy Dunlap73.87%111.11%
Tomi Valkeinen21.10%111.11%
H. Peter Anvin10.55%111.11%
Andrew Morton10.55%111.11%
Mika Kukkonen10.55%111.11%
Fabian Frederick10.55%111.11%
Antonino A. Daplas10.55%111.11%
Total181100.00%9100.00%

EXPORT_SYMBOL_GPL(fb_find_logo);

Overall Contributors

PersonTokensPropCommitsCommitProp
James Simmons17971.31%215.38%
Tomi Valkeinen2710.76%17.69%
Randy Dunlap2610.36%17.69%
Jon Smirl83.19%17.69%
Linus Torvalds31.20%17.69%
Fabian Frederick20.80%17.69%
Antonino A. Daplas10.40%17.69%
Takeshi Kihara10.40%17.69%
Mika Kukkonen10.40%17.69%
H. Peter Anvin10.40%17.69%
Rusty Russell10.40%17.69%
Andrew Morton10.40%17.69%
Total251100.00%13100.00%
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