diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig | 5 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 51 | ||||
| -rw-r--r-- | lib/Makefile | 5 | ||||
| -rw-r--r-- | lib/bitrev.c | 4 | ||||
| -rw-r--r-- | lib/ioremap.c | 1 | ||||
| -rw-r--r-- | lib/reciprocal_div.c | 9 |
6 files changed, 47 insertions, 28 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 47b172df3e31..9b03581cdecb 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -101,4 +101,9 @@ config TEXTSEARCH_FSM config PLIST boolean +config IOMAP_COPY + boolean + depends on !UML + default y + endmenu diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 6eccc643c32e..818e4589f718 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -47,6 +47,30 @@ config UNUSED_SYMBOLS you really need it, and what the merge plan to the mainline kernel for your module is. +config DEBUG_FS + bool "Debug Filesystem" + depends on SYSFS + help + debugfs is a virtual file system that kernel developers use to put + debugging files into. Enable this option to be able to read and + write to these files. + + If unsure, say N. + +config HEADERS_CHECK + bool "Run 'make headers_check' when building vmlinux" + depends on !UML + help + This option will extract the user-visible kernel headers whenever + building the kernel, and will run basic sanity checks on them to + ensure that exported files do not attempt to include files which + were not exported, etc. + + If you're making modifications to header files which are + relevant for userspace, say 'Y', and check the headers + exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in + your build tree), to make sure they're suitable. + config DEBUG_KERNEL bool "Kernel debugging" help @@ -302,16 +326,6 @@ config DEBUG_INFO If unsure, say N. -config DEBUG_FS - bool "Debug Filesystem" - depends on SYSFS - help - debugfs is a virtual file system that kernel developers use to put - debugging files into. Enable this option to be able to read and - write to these files. - - If unsure, say N. - config DEBUG_VM bool "Debug VM" depends on DEBUG_KERNEL @@ -372,20 +386,6 @@ config FORCED_INLINING become the default in the future, until then this option is there to test gcc for this. -config HEADERS_CHECK - bool "Run 'make headers_check' when building vmlinux" - depends on !UML - help - This option will extract the user-visible kernel headers whenever - building the kernel, and will run basic sanity checks on them to - ensure that exported files do not attempt to include files which - were not exported, etc. - - If you're making modifications to header files which are - relevant for userspace, say 'Y', and check the headers - exported to $(INSTALL_HDR_PATH) (usually 'usr/include' in - your build tree), to make sure they're suitable. - config RCU_TORTURE_TEST tristate "torture tests for RCU" depends on DEBUG_KERNEL @@ -402,6 +402,7 @@ config RCU_TORTURE_TEST config LKDTM tristate "Linux Kernel Dump Test Tool Module" + depends on DEBUG_KERNEL depends on KPROBES default n help @@ -436,7 +437,7 @@ config FAIL_PAGE_ALLOC Provide fault-injection capability for alloc_pages(). config FAIL_MAKE_REQUEST - bool "Fault-injection capabilitiy for disk IO" + bool "Fault-injection capability for disk IO" depends on FAULT_INJECTION help Provide fault-injection capability for disk IO. diff --git a/lib/Makefile b/lib/Makefile index 2d6106af53cd..77b4bad7d441 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -5,20 +5,21 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \ bust_spinlocks.o rbtree.o radix-tree.o dump_stack.o \ idr.o div64.o int_sqrt.o bitmap.o extable.o prio_tree.o \ - sha1.o irq_regs.o + sha1.o irq_regs.o reciprocal_div.o lib-$(CONFIG_MMU) += ioremap.o lib-$(CONFIG_SMP) += cpumask.o lib-y += kobject.o kref.o kobject_uevent.o klist.o -obj-y += sort.o parser.o halfmd4.o iomap_copy.o debug_locks.o random32.o +obj-y += sort.o parser.o halfmd4.o debug_locks.o random32.o ifeq ($(CONFIG_DEBUG_KOBJECT),y) CFLAGS_kobject.o += -DDEBUG CFLAGS_kobject_uevent.o += -DDEBUG endif +obj-$(CONFIG_IOMAP_COPY) += iomap_copy.o obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o diff --git a/lib/bitrev.c b/lib/bitrev.c index f4e1c49c825a..989aff73f881 100644 --- a/lib/bitrev.c +++ b/lib/bitrev.c @@ -2,6 +2,10 @@ #include <linux/module.h> #include <linux/bitrev.h> +MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>"); +MODULE_DESCRIPTION("Bit ordering reversal functions"); +MODULE_LICENSE("GPL"); + const u8 byte_rev_table[256] = { 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, diff --git a/lib/ioremap.c b/lib/ioremap.c index 99fa277f9f7b..a9e4415b02dc 100644 --- a/lib/ioremap.c +++ b/lib/ioremap.c @@ -5,7 +5,6 @@ * * (C) Copyright 1995 1996 Linus Torvalds */ -#include <linux/io.h> #include <linux/vmalloc.h> #include <linux/mm.h> diff --git a/lib/reciprocal_div.c b/lib/reciprocal_div.c new file mode 100644 index 000000000000..6a3bd48fa2a0 --- /dev/null +++ b/lib/reciprocal_div.c @@ -0,0 +1,9 @@ +#include <asm/div64.h> +#include <linux/reciprocal_div.h> + +u32 reciprocal_value(u32 k) +{ + u64 val = (1LL << 32) + (k - 1); + do_div(val, k); + return (u32)val; +} |