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Date: Wed, 24 Feb 2010 09:55:47 +0100
From: Tilman Schmidt <tilman@...p.cc>
To: Andy Shevchenko <andy.shevchenko@...il.com>
CC: linux-kernel@...r.kernel.org, Hansjoerg Lipp <hjlipp@....de>
Subject: Re: [PATCHv2 1/2] drivers: isdn: get rid of custom strtoul()
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Am 2010-02-23 20:21 schrieb Andy Shevchenko:
> --- a/drivers/isdn/gigaset/ev-layer.c
> +++ b/drivers/isdn/gigaset/ev-layer.c
> @@ -420,64 +420,18 @@ static const struct zsau_resp_t {
> {NULL, ZSAU_UNKNOWN}
> };
>
> -/*
> - * Get integer from char-pointer
> - */
> -static int isdn_getnum(char *p)
> -{
> - int v = -1;
> -
> - gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
This conflicts (trivially) with:
[PATCH 3/4] gigaset: reduce syslog clutter
which I submitted the day before yesterday and which has not yet been
merged into *-next.
> -/*
> - * Get integer from char-pointer
> - */
> -static int isdn_gethex(char *p)
> -{
> - int v = 0;
> - int c;
> -
> - gig_dbg(DEBUG_TRANSCMD, "string: %s", p);
Idem.
> /* retrieve CID from parsed response
> * returns 0 if no CID, -1 if invalid CID, or CID value 1..65535
> */
> static int cid_of_response(char *s)
> {
> int cid;
> + int rc;
>
> if (s[-1] != ';')
> return 0; /* no CID separator */
> - cid = isdn_getnum(s);
> - if (cid < 0)
> + rc = strict_strtoul(s, 10, &cid);
strict_strtoul() expects unsigned long* as its third argument, but cid
is an int. Consequently, this generates sparse warnings:
drivers/isdn/gigaset/ev-layer.c:433:30: warning: incorrect type in
argument 3 (different type sizes)
drivers/isdn/gigaset/ev-layer.c:433:30: expected unsigned long *<noident>
drivers/isdn/gigaset/ev-layer.c:433:30: got int *<noident>
and compiler warnings:
drivers/isdn/gigaset/ev-layer.c: In function ‘cid_of_response’:
drivers/isdn/gigaset/ev-layer.c:433: warning: passing argument 3 of
‘strict_strtoul’ from incompatible pointer type
include/linux/kernel.h:176: note: expected ‘long unsigned int *’ but
argument is of type ‘int *’
> @@ -648,9 +602,11 @@ void gigaset_handle_modem_response(struct cardstate *cs)
> case RT_ZCAU:
> event->parameter = -1;
> if (curarg + 1 < params) {
> - i = isdn_gethex(argv[curarg]);
> - j = isdn_gethex(argv[curarg + 1]);
> - if (i >= 0 && i < 256 && j >= 0 && j < 256)
> + int ri = strict_strtoul(argv[curarg], 16, &i);
> + int rj = strict_strtoul(argv[curarg+1], 16, &j);
Idem.
> @@ -660,12 +616,14 @@ void gigaset_handle_modem_response(struct cardstate *cs)
> case RT_NUMBER:
> case RT_HEX:
> if (curarg < params) {
> - if (param_type == RT_HEX)
> - event->parameter =
> - isdn_gethex(argv[curarg]);
> - else
> - event->parameter =
> - isdn_getnum(argv[curarg]);
> + int base = (param_type == RT_HEX) ? 16 : 10;
> + unsigned long res;
> + int rc;
> +
> + rc = strict_strtoul(argv[curarg], base, &res);
Idem.
Thanks,
Tilman
- --
Tilman Schmidt E-Mail: tilman@...p.cc
Bonn, Germany
Diese Nachricht besteht zu 100% aus wiederverwerteten Bits.
Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
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