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author | Tilman Schmidt <tilman@imap.cc> | 2006-04-10 22:55:11 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 06:18:50 -0700 |
commit | 01371500b245ae63f542d74140a3d8ccb74d0318 (patch) | |
tree | 8c758e86e3b6266c742b08111d53ac5bd21c0cbe /drivers/isdn/gigaset/common.c | |
parent | 714e8236e5ea9d39169761c546274ceb7eeb765f (diff) | |
download | linux-01371500b245ae63f542d74140a3d8ccb74d0318.tar.gz linux-01371500b245ae63f542d74140a3d8ccb74d0318.tar.bz2 linux-01371500b245ae63f542d74140a3d8ccb74d0318.zip |
[PATCH] isdn4linux: Siemens Gigaset drivers: eliminate from_user argument
With Hansjoerg Lipp <hjlipp@web.de>
Eliminate the from_user argument from a debugging function, thus easing the
job of sparse.
Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/isdn/gigaset/common.c')
-rw-r--r-- | drivers/isdn/gigaset/common.c | 30 |
1 files changed, 7 insertions, 23 deletions
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index 5155c5b07a06..e9bfcfd9f116 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -79,50 +79,34 @@ __u8 gigaset_invtab[256] = { EXPORT_SYMBOL_GPL(gigaset_invtab); void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg, - size_t len, const unsigned char *buf, int from_user) + size_t len, const unsigned char *buf) { unsigned char outbuf[80]; - unsigned char inbuf[80 - 1]; unsigned char c; - size_t numin; - const unsigned char *in; size_t space = sizeof outbuf - 1; unsigned char *out = outbuf; + size_t numin = len; - if (!from_user) { - in = buf; - numin = len; - } else { - numin = len < sizeof inbuf ? len : sizeof inbuf; - in = inbuf; - if (copy_from_user(inbuf, (const unsigned char __user *) buf, - numin)) { - gig_dbg(level, "%s (%u bytes) - copy_from_user failed", - msg, (unsigned) len); - return; - } - } - - while (numin-- > 0) { + while (numin--) { c = *buf++; if (c == '~' || c == '^' || c == '\\') { - if (space-- <= 0) + if (!space--) break; *out++ = '\\'; } if (c & 0x80) { - if (space-- <= 0) + if (!space--) break; *out++ = '~'; c ^= 0x80; } if (c < 0x20 || c == 0x7f) { - if (space-- <= 0) + if (!space--) break; *out++ = '^'; c ^= 0x40; } - if (space-- <= 0) + if (!space--) break; *out++ = c; } |