diff options
Diffstat (limited to 'include/linux/mtd/compatmac.h')
| -rw-r--r-- | include/linux/mtd/compatmac.h | 199 |
1 files changed, 4 insertions, 195 deletions
diff --git a/include/linux/mtd/compatmac.h b/include/linux/mtd/compatmac.h index 8b243674cf22..7d1300d9bd51 100644 --- a/include/linux/mtd/compatmac.h +++ b/include/linux/mtd/compatmac.h @@ -1,201 +1,10 @@ -/* - * mtd/include/compatmac.h - * - * $Id: compatmac.h,v 1.4 2000/07/03 10:01:38 dwmw2 Exp $ - * - * Extensions and omissions from the normal 'linux/compatmac.h' - * files. hopefully this will end up empty as the 'real' one - * becomes fully-featured. - */ - - -/* First, include the parts which the kernel is good enough to provide - * to us - */ - #ifndef __LINUX_MTD_COMPATMAC_H__ #define __LINUX_MTD_COMPATMAC_H__ -#include <linux/types.h> /* used later in this header */ -#include <linux/module.h> -#ifndef LINUX_VERSION_CODE -#include <linux/version.h> -#endif - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) -#include <linux/vmalloc.h> -#endif - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,0,0) -# error "This kernel is too old: not supported by this file" -#endif - -/* Modularization issues */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,18) -# define __USE_OLD_SYMTAB__ -# define EXPORT_NO_SYMBOLS register_symtab(NULL); -# define REGISTER_SYMTAB(tab) register_symtab(tab) -#else -# define REGISTER_SYMTAB(tab) /* nothing */ -#endif - -#ifdef __USE_OLD_SYMTAB__ -# define __MODULE_STRING(s) /* nothing */ -# define MODULE_PARM(v,t) /* nothing */ -# define MODULE_PARM_DESC(v,t) /* nothing */ -# define MODULE_AUTHOR(n) /* nothing */ -# define MODULE_DESCRIPTION(d) /* nothing */ -# define MODULE_SUPPORTED_DEVICE(n) /* nothing */ -#endif - -/* - * "select" changed in 2.1.23. The implementation is twin, but this - * header is new - */ -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,22) -# include <linux/poll.h> -#else -# define __USE_OLD_SELECT__ -#endif - -/* Other change in the fops are solved using pseudo-types */ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) -# define lseek_t long long -# define lseek_off_t long long -#else -# define lseek_t int -# define lseek_off_t off_t -#endif - -/* changed the prototype of read/write */ - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) || defined(__alpha__) -# define count_t unsigned long -# define read_write_t long -#else -# define count_t int -# define read_write_t int -#endif - - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,31) -# define release_t void -# define release_return(x) return -#else -# define release_t int -# define release_return(x) return (x) -#endif - -#if LINUX_VERSION_CODE < 0x20300 -#define __exit -#endif -#if LINUX_VERSION_CODE < 0x20200 -#define __init -#else -#include <linux/init.h> -#endif - -#if LINUX_VERSION_CODE < 0x20300 -#define init_MUTEX(x) do {*(x) = MUTEX;} while (0) -#define RQFUNC_ARG void -#define blkdev_dequeue_request(req) do {CURRENT = req->next;} while (0) -#else -#define RQFUNC_ARG request_queue_t *q -#endif - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,0) -#define __MOD_INC_USE_COUNT(mod) \ - (atomic_inc(&(mod)->uc.usecount), (mod)->flags |= MOD_VISITED|MOD_USED_ONCE) -#define __MOD_DEC_USE_COUNT(mod) \ - (atomic_dec(&(mod)->uc.usecount), (mod)->flags |= MOD_VISITED) -#endif - - - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0) - -#define DECLARE_WAIT_QUEUE_HEAD(x) struct wait_queue *x = NULL -#define init_waitqueue_head init_waitqueue - -static inline int try_inc_mod_count(struct module *mod) -{ - if (mod) - __MOD_INC_USE_COUNT(mod); - return 1; -} -#endif - - -/* Yes, I'm aware that it's a fairly ugly hack. - Until the __constant_* macros appear in Linus' own kernels, this is - the way it has to be done. - DW 19/1/00 - */ - -#include <asm/byteorder.h> - -#ifndef __constant_cpu_to_le16 - -#ifdef __BIG_ENDIAN -#define __constant_cpu_to_le64(x) ___swab64((x)) -#define __constant_le64_to_cpu(x) ___swab64((x)) -#define __constant_cpu_to_le32(x) ___swab32((x)) -#define __constant_le32_to_cpu(x) ___swab32((x)) -#define __constant_cpu_to_le16(x) ___swab16((x)) -#define __constant_le16_to_cpu(x) ___swab16((x)) -#define __constant_cpu_to_be64(x) ((__u64)(x)) -#define __constant_be64_to_cpu(x) ((__u64)(x)) -#define __constant_cpu_to_be32(x) ((__u32)(x)) -#define __constant_be32_to_cpu(x) ((__u32)(x)) -#define __constant_cpu_to_be16(x) ((__u16)(x)) -#define __constant_be16_to_cpu(x) ((__u16)(x)) -#else -#ifdef __LITTLE_ENDIAN -#define __constant_cpu_to_le64(x) ((__u64)(x)) -#define __constant_le64_to_cpu(x) ((__u64)(x)) -#define __constant_cpu_to_le32(x) ((__u32)(x)) -#define __constant_le32_to_cpu(x) ((__u32)(x)) -#define __constant_cpu_to_le16(x) ((__u16)(x)) -#define __constant_le16_to_cpu(x) ((__u16)(x)) -#define __constant_cpu_to_be64(x) ___swab64((x)) -#define __constant_be64_to_cpu(x) ___swab64((x)) -#define __constant_cpu_to_be32(x) ___swab32((x)) -#define __constant_be32_to_cpu(x) ___swab32((x)) -#define __constant_cpu_to_be16(x) ___swab16((x)) -#define __constant_be16_to_cpu(x) ___swab16((x)) -#else -#error No (recognised) endianness defined (unless it,s PDP) -#endif /* __LITTLE_ENDIAN */ -#endif /* __BIG_ENDIAN */ - -#endif /* ifndef __constant_cpu_to_le16 */ - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0) - #define mod_init_t int __init - #define mod_exit_t void -#else - #define mod_init_t static int __init - #define mod_exit_t static void __exit -#endif - -#ifndef THIS_MODULE -#ifdef MODULE -#define THIS_MODULE (&__this_module) -#else -#define THIS_MODULE (NULL) -#endif -#endif - -#if LINUX_VERSION_CODE < 0x20300 -#include <linux/interrupt.h> -#define spin_lock_bh(lock) do {start_bh_atomic();spin_lock(lock);} while(0) -#define spin_unlock_bh(lock) do {spin_unlock(lock);end_bh_atomic();} while(0) -#else -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#endif +/* Nothing to see here. We write 2.5-compatible code and this + file makes it all OK in older kernels, but it's empty in _current_ + kernels. Include guard just to make GCC ignore it in future inclusions + anyway... */ #endif /* __LINUX_MTD_COMPATMAC_H__ */ - - |