forked from luck/tmp_suning_uos_patched
9b706aee7d
In arch/x86/boot/printf.c gets rid of unused tail of digits: const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; (we are using 0-9a-f only) Uses smaller/faster lowercasing (by ORing with 0x20) if we know that we work on numbers/digits. Makes strtoul smaller, and also we are getting rid of static const char small_digits[] = "0123456789abcdefx"; static const char large_digits[] = "0123456789ABCDEFX"; since this works equally well: static const char digits[16] = "0123456789ABCDEF"; Size savings: $ size vmlinux.org vmlinux text data bss dec hex filename 877320 112252 90112 1079684 107984 vmlinux.org 877048 112252 90112 1079412 107874 vmlinux It may be also a tiny bit faster because code has less branches now, but I doubt it is measurable. [ hugh@veritas.com: uppercase pointers fix ] Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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.. | ||
compressed | ||
tools | ||
.gitignore | ||
a20.c | ||
apm.c | ||
bitops.h | ||
boot.h | ||
cmdline.c | ||
code16gcc.h | ||
copy.S | ||
cpu.c | ||
cpucheck.c | ||
edd.c | ||
header.S | ||
install.sh | ||
main.c | ||
Makefile | ||
mca.c | ||
memory.c | ||
mkcpustr.c | ||
mtools.conf.in | ||
pm.c | ||
pmjump.S | ||
printf.c | ||
setup.ld | ||
string.c | ||
tty.c | ||
version.c | ||
vesa.h | ||
video-bios.c | ||
video-vesa.c | ||
video-vga.c | ||
video.c | ||
video.h | ||
voyager.c |