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flash_eraseall: stop using obsolete mtd/jffs2-user.h; code shrink

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function                                             old     new   delta
show_progress                                         68      67      -1
flash_eraseall_main                                 1007     882    -125
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-126)           Total: -126 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2009-11-27 13:26:17 +01:00
parent 160b9ca731
commit 86cfb70ca5
1 changed files with 30 additions and 17 deletions
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47
miscutils/flash_eraseall.c
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@@ -12,22 +12,35 @@
#include "libbb.h"
#include <mtd/mtd-user.h>
#include <mtd/jffs2-user.h>
#include <linux/jffs2.h>
#define OPTION_J (1 << 0)
#define OPTION_Q (1 << 1)
#define IS_NAND (1 << 2)
#define BBTEST (1 << 3)
struct globals {
/* This is used in the cpu_to_je/je_to_cpu macros in jffs2_user.h */
int tgt_endian;
};
#define G (*(struct globals*)&bb_common_bufsiz1)
#define target_endian (G.tgt_endian)
#define INIT_G() do { \
target_endian = __BYTE_ORDER; \
} while (0)
/* mtd/jffs2-user.h used to have this atrocity:
extern int target_endian;
#define t16(x) ({ __u16 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
#define t32(x) ({ __u32 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
#define cpu_to_je16(x) ((jint16_t){t16(x)})
#define cpu_to_je32(x) ((jint32_t){t32(x)})
#define cpu_to_jemode(x) ((jmode_t){t32(x)})
#define je16_to_cpu(x) (t16((x).v16))
#define je32_to_cpu(x) (t32((x).v32))
#define jemode_to_cpu(x) (t32((x).m))
but mtd/jffs2-user.h is gone now (at least 2.6.31.6 does not have it anymore)
*/
/* We always use native endianness */
#undef cpu_to_je16
#undef cpu_to_je32
#define cpu_to_je16(v) ((jint16_t){(v)})
#define cpu_to_je32(v) ((jint32_t){(v)})
static uint32_t crc32(uint32_t val, const void *ss, int len,
uint32_t *crc32_table)
@@ -40,9 +53,11 @@ static uint32_t crc32(uint32_t val, const void *ss, int len,
static void show_progress(mtd_info_t *meminfo, erase_info_t *erase)
{
printf("\rErasing %d Kibyte @ %x -- %2llu %% complete.",
(unsigned)meminfo->erasesize / 1024, erase->start,
(unsigned long long) erase->start * 100 / meminfo->size);
printf("\rErasing %u Kibyte @ %x - %2u%% complete.",
(unsigned)meminfo->erasesize / 1024,
erase->start,
(unsigned) ((unsigned long long) erase->start * 100 / meminfo->size)
);
fflush_all();
}
@@ -57,17 +72,15 @@ int flash_eraseall_main(int argc UNUSED_PARAM, char **argv)
unsigned int flags;
char *mtd_name;
INIT_G();
opt_complementary = "=1";
flags = BBTEST | getopt32(argv, "jq");
mtd_name = argv[optind];
xstat(mtd_name, &st);
fd = xopen(mtd_name, O_RDWR);
fstat(fd, &st);
if (!S_ISCHR(st.st_mode))
bb_error_msg_and_die("%s: not a char device", mtd_name);
fd = xopen(mtd_name, O_RDWR);
xioctl(fd, MEMGETINFO, &meminfo);
erase.length = meminfo.erasesize;
if (meminfo.type == MTD_NANDFLASH)