b43:
CHECK drivers/net/wireless/b43/phy_g.c
drivers/net/wireless/b43/phy_g.c:974:56: warning: cast truncates bits
from constant value (ffff7fff becomes 7fff)
...
CHECK drivers/net/wireless/b43/wa.c
drivers/net/wireless/b43/wa.c:385:60: warning: cast truncates bits
from constant value (ffff00ff becomes ff)
drivers/net/wireless/b43/wa.c:403:55: warning: cast truncates bits
from constant value (ffff00ff becomes ff)
drivers/net/wireless/b43/wa.c:405:55: warning: cast truncates bits
from constant value (ffff00ff becomes ff)
drivers/net/wireless/b43/wa.c:415:71: warning: cast truncates bits
from constant value (ffff0fff becomes fff)
ip2100:
CHECK drivers/net/wireless/ipw2x00/ipw2100.c
include/net/inet_sock.h:208:17: warning: do-while statement is not a
compound statement
drivers/net/wireless/ipw2x00/ipw2100.c:2847:21: warning: symbol 'i'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:2770:16: originally declared here
drivers/net/wireless/ipw2x00/ipw2100.c:7888:22: warning: symbol 'mode'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:188:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2100.c:7952:18: warning: symbol 'mode'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:188:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2100.c:8000:18: warning: symbol 'mode'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:188:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2100.c:8268:27: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:8268:27: originally declared here
drivers/net/wireless/ipw2x00/ipw2100.c:8268:27: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:8268:27: originally declared here
drivers/net/wireless/ipw2x00/ipw2100.c:8268:27: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2100.c:8268:27: originally declared here
CC [M] drivers/net/wireless/ipw2x00/ipw2100.o
CHECK drivers/net/wireless/ipw2x00/ipw2200.c
CHECK drivers/net/wireless/ipw2x00/ipw2200.c
drivers/net/wireless/ipw2x00/ipw2200.c:847:13: warning: symbol 'led'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:92:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:891:13: warning: symbol 'led'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:92:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:935:13: warning: symbol 'led'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:92:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:980:13: warning: symbol 'led'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:92:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:1016:13: warning: symbol 'led'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:92:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:1051:13: warning: symbol 'led'
shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:92:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:1823:13: warning: symbol
'channel' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:86:12: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min2' shadows an earlier one
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: originally declared here
drivers/net/wireless/ipw2x00/ipw2200.c:4268:19: warning: symbol
'_min1' shadows an earlier one
(goes on and on)
CC [M] drivers/net/wireless/ipw2x00/ipw2200.o
CHECK drivers/net/wireless/ipw2x00/libipw_module.c
include/net/inet_sock.h:208:17: warning: do-while statement is not a
compound statement
CC [M] drivers/net/wireless/ipw2x00/libipw_module.o
CHECK drivers/net/wireless/ipw2x00/libipw_tx.c
include/net/inet_sock.h:208:17: warning: do-while statement is not a
compound statement
CC [M] drivers/net/wireless/ipw2x00/libipw_tx.o
CHECK drivers/net/wireless/ipw2x00/libipw_rx.c
include/net/inet_sock.h:208:17: warning: do-while statement is not a
compound statement
CC [M] drivers/net/wireless/ipw2x00/libipw_rx.o
CHECK drivers/net/wireless/ipw2x00/libipw_wx.c
CC [M] drivers/net/wireless/ipw2x00/libipw_wx.o
CHECK drivers/net/wireless/ipw2x00/libipw_geo.c
include/net/inet_sock.h:208:17: warning: do-while statement is not a
compound statement
iwmc3200wifi:
drivers/net/wireless/iwmc3200wifi/cfg80211.c:241:5: warning: symbol
'iwm_cfg80211_get_station' was not declared. Should it be static?
CC [M] drivers/net/wireless/iwmc3200wifi/cfg80211.o
libertas:
CHECK drivers/net/wireless/libertas/assoc.c
drivers/net/wireless/libertas/assoc.c:48:47: error: bad constant expression
libertas_tf:
CC [M] drivers/net/wireless/libertas_tf/main.o
drivers/net/wireless/libertas_tf/main.c: In function ‘lbtf_rx’:
drivers/net/wireless/libertas_tf/main.c:506: warning: ‘stats.antenna’
is used uninitialized in this function
drivers/net/wireless/libertas_tf/main.c:506: warning: ‘stats.mactime’
is used uninitialized in this function
Orinoco:
CHECK drivers/net/wireless/orinoco/wext.c
drivers/net/wireless/orinoco/wext.c:1294:9: warning: context imbalance
in 'orinoco_ioctl_setibssport' - unexpected unlock
prism54:
CHECK drivers/net/wireless/prism54/isl_ioctl.c
drivers/net/wireless/prism54/isl_ioctl.c:2052:27: warning: incorrect
type in assignment (different address spaces)
drivers/net/wireless/prism54/isl_ioctl.c:2052:27: expected void
[noderef] <asn:1>*pointer
drivers/net/wireless/prism54/isl_ioctl.c:2052:27: got char *[assigned] memptr
drivers/net/wireless/prism54/isl_ioctl.c:2071:27: warning: incorrect
type in assignment (different address spaces)
drivers/net/wireless/prism54/isl_ioctl.c:2071:27: expected void
[noderef] <asn:1>*pointer
drivers/net/wireless/prism54/isl_ioctl.c:2071:27: got char *[assigned] memptr
drivers/net/wireless/prism54/oid_mgt.c:424:22: warning: symbol '_data'
shadows an earlier one
incude/asm-generic/sections.h:7:13: originally declared here
rtl:
CHECK drivers/net/wireless/rtl818x/rtl8180_rtl8225.c
drivers/net/wireless/rtl818x/rtl8180_rtl8225.c:53:33: warning: dubious: x | !y
TI:
CHECK drivers/net/wireless/wl12xx/wl1251_boot.c
drivers/net/wireless/wl12xx/wl1251_boot.c:227:22: warning: symbol
'interrupt' shadows an earlier one
/home/mcgrof/wireless-testing/arch/x86/include/asm/hw_irq.h:120:13:
originally declared here
CHECK drivers/net/wireless/wl12xx/wl1251_sdio.c
drivers/net/wireless/wl12xx/wl1251_sdio.c:68:6: warning: symbol
'wl1251_sdio_read' was not declared. Should it be static?
drivers/net/wireless/wl12xx/wl1251_sdio.c:80:6: warning: symbol
'wl1251_sdio_write' was not declared. Should it be static?
drivers/net/wireless/wl12xx/wl1251_sdio.c:92:6: warning: symbol
'wl1251_sdio_reset' was not declared. Should it be static?
drivers/net/wireless/wl12xx/wl1251_sdio.c:114:6: warning: symbol
'wl1251_sdio_set_power' was not declared. Should it be static?
drivers/net/wireless/wl12xx/wl1251_sdio.c:118:29: warning: symbol
'wl1251_sdio_ops' was not declared. Should it be static?
drivers/net/wireless/wl12xx/wl1251_sdio.c:126:5: warning: symbol
'wl1251_sdio_probe' was not declared. Should it be static?
strip:
include/net/inet_sock.h:208:17: warning: do-while statement is not a
compound statement
drivers/net/wireless/strip.c:490:23: error: bad constant expression
wl3501_cs:
CC [M] drivers/net/wireless/wl3501_cs.o
drivers/net/wireless/wl3501_cs.c: In function ‘wl3501_esbq_exec’:
drivers/net/wireless/wl3501_cs.c:387: warning: ‘tmp’ is used
uninitialized in this function
drivers/net/wireless/wl3501_cs.c:384: note: ‘tmp’ was declared here
mwl8k:
CHECK drivers/net/wireless/mwl8k.c
drivers/net/wireless/mwl8k.c:1600:16: warning: incorrect type in
assignment (different address spaces)
drivers/net/wireless/mwl8k.c:1600:16: expected unsigned short
[noderef] [usertype] <asn:2>*result
drivers/net/wireless/mwl8k.c:1600:16: got unsigned short *<noident>
drivers/net/wireless/mwl8k.c:1611:23: warning: dereference of noderef expression
drivers/net/wireless/mwl8k.c:1616:33: warning: dereference of noderef expression
"Luis R. Rodriguez" <[email protected]> writes:
> TI:
>
> CHECK drivers/net/wireless/wl12xx/wl1251_boot.c
> drivers/net/wireless/wl12xx/wl1251_boot.c:227:22: warning: symbol
> 'interrupt' shadows an earlier one
> /home/mcgrof/wireless-testing/arch/x86/include/asm/hw_irq.h:120:13:
> originally declared here
>
> CHECK drivers/net/wireless/wl12xx/wl1251_sdio.c
> drivers/net/wireless/wl12xx/wl1251_sdio.c:68:6: warning: symbol
> 'wl1251_sdio_read' was not declared. Should it be static?
> drivers/net/wireless/wl12xx/wl1251_sdio.c:80:6: warning: symbol
> 'wl1251_sdio_write' was not declared. Should it be static?
> drivers/net/wireless/wl12xx/wl1251_sdio.c:92:6: warning: symbol
> 'wl1251_sdio_reset' was not declared. Should it be static?
> drivers/net/wireless/wl12xx/wl1251_sdio.c:114:6: warning: symbol
> 'wl1251_sdio_set_power' was not declared. Should it be static?
> drivers/net/wireless/wl12xx/wl1251_sdio.c:118:29: warning: symbol
> 'wl1251_sdio_ops' was not declared. Should it be static?
> drivers/net/wireless/wl12xx/wl1251_sdio.c:126:5: warning: symbol
> 'wl1251_sdio_probe' was not declared. Should it be static?
Thanks. I'll fix these.
--
Kalle Valo
On Wed, 2009-08-19 at 12:09 -0500, Dan Williams wrote:
> On Thu, 2009-08-13 at 17:34 -0700, Andrey Yurovsky wrote:
> > sparse complains about a bad constant expression due to the use of a
> > dynamic-sized array in get_common_rates(). Allocate and free the array
> > instead.
>
> Mind testing this patch from libertas-dev? It should fix this but also
> clears up some of the confustion:
FWIW this patch now tested with sd8686.
Dan
> Subject:
> Re: Libertas: Association request to
> the driver failed
> Date:
> Wed, 12 Aug 2009 12:34:17 -0500
>
> Signed-off-by: Dan Williams <[email protected]>
>
>
> diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
> index 1902b6f..8c05388 100644
> --- a/drivers/net/wireless/libertas/assoc.c
> +++ b/drivers/net/wireless/libertas/assoc.c
> @@ -35,7 +35,8 @@ static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
> *
> * @param priv A pointer to struct lbs_private structure
> * @param rates the buffer which keeps input and output
> - * @param rates_size the size of rate1 buffer; new size of buffer on return
> + * @param rates_size the size of rates buffer; new size of buffer on return,
> + * which will be less than or equal to original rates_size
> *
> * @return 0 on success, or -1 on error
> */
> @@ -43,39 +44,42 @@ static int get_common_rates(struct lbs_private *priv,
> u8 *rates,
> u16 *rates_size)
> {
> - u8 *card_rates = lbs_bg_rates;
> - int ret = 0, i, j;
> - u8 tmp[(ARRAY_SIZE(lbs_bg_rates) - 1) * (*rates_size - 1)];
> - size_t tmp_size = 0;
> -
> - /* For each rate in card_rates that exists in rate1, copy to tmp */
> - for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && card_rates[i]; i++) {
> - for (j = 0; j < *rates_size && rates[j]; j++) {
> - if (rates[j] == card_rates[i])
> - tmp[tmp_size++] = card_rates[i];
> + int i, j;
> + u8 intersection[MAX_RATES];
> + u16 intersection_size;
> + u16 num_rates = 0;
> +
> + intersection_size = min_t(u16, *rates_size, ARRAY_SIZE(intersection));
> +
> + /* Allow each rate from 'rates' that is supported by the hardware */
> + for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && lbs_bg_rates[i]; i++) {
> + for (j = 0; j < intersection_size && rates[j]; j++) {
> + if (rates[j] == lbs_bg_rates[i])
> + intersection[num_rates++] = rates[j];
> }
> }
>
> lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
> - lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates,
> + lbs_deb_hex(LBS_DEB_JOIN, "card rates ", lbs_bg_rates,
> ARRAY_SIZE(lbs_bg_rates));
> - lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
> + lbs_deb_hex(LBS_DEB_JOIN, "common rates", intersection, num_rates);
> lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
>
> if (!priv->enablehwauto) {
> - for (i = 0; i < tmp_size; i++) {
> - if (tmp[i] == priv->cur_rate)
> + for (i = 0; i < num_rates; i++) {
> + if (intersection[i] == priv->cur_rate)
> goto done;
> }
> lbs_pr_alert("Previously set fixed data rate %#x isn't "
> "compatible with the network.\n", priv->cur_rate);
> - ret = -1;
> + return -1;
> }
> +
> done:
> memset(rates, 0, *rates_size);
> - *rates_size = min_t(int, tmp_size, *rates_size);
> - memcpy(rates, tmp, *rates_size);
> - return ret;
> + *rates_size = num_rates;
> + memcpy(rates, intersection, num_rates);
> + return 0;
> }
>
>
> @@ -317,8 +321,8 @@ static int lbs_associate(struct lbs_private *priv,
>
> rates = (struct mrvl_ie_rates_param_set *) pos;
> rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
> - memcpy(&rates->rates, &bss->rates, MAX_RATES);
> - tmplen = min_t(u16, ARRAY_SIZE(rates->rates), MAX_RATES);
> + tmplen = min_t(u16, ARRAY_SIZE(bss->rates), MAX_RATES);
> + memcpy(&rates->rates, &bss->rates, tmplen);
> if (get_common_rates(priv, rates->rates, &tmplen)) {
> ret = -1;
> goto done;
> @@ -592,7 +596,7 @@ static int lbs_adhoc_join(struct lbs_private *priv,
>
> /* Copy Data rates from the rates recorded in scan response */
> memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates));
> - ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), MAX_RATES);
> + ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), ARRAY_SIZE (bss->rates));
> memcpy(cmd.bss.rates, bss->rates, ratesize);
> if (get_common_rates(priv, cmd.bss.rates, &ratesize)) {
> lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n");
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thu, 2009-08-13 at 13:31 -0700, Luis R. Rodriguez wrote:
> CHECK drivers/net/wireless/ipw2x00/ipw2100.c
> include/net/inet_sock.h:208:17: warning: do-while statement is not a
> compound statement
> drivers/net/wireless/ipw2x00/ipw2100.c:2847:21: warning: symbol 'i'
> shadows an earlier one
> drivers/net/wireless/ipw2x00/ipw2100.c:2770:16: originally declared here
> drivers/net/wireless/ipw2x00/ipw2100.c:7888:22: warning: symbol 'mode'
> shadows an earlier one
> drivers/net/wireless/ipw2x00/ipw2100.c:188:12: originally declared here
> drivers/net/wireless/ipw2x00/ipw2100.c:7952:18: warning: symbol 'mode'
> shadows an earlier one
> drivers/net/wireless/ipw2x00/ipw2100.c:188:12: originally declared here
> drivers/net/wireless/ipw2x00/ipw2100.c:8000:18: warning: symbol 'mode'
> shadows an earlier one
[...]
Thanks Luis.
Does not look like sparse was ever run for ipw2x00 ... the driver
specific ones will be addressed. Seems like other people also ran into
the:
> CHECK drivers/net/wireless/ipw2x00/libipw_module.c
> include/net/inet_sock.h:208:17: warning: do-while statement is not a
> compound statement
There is already a patch for this one ([1]) but I cannot tell of the
kmemcheck folks merged it.
Reinette
[1] http://thread.gmane.org/gmane.linux.kernel/861983
Luis R. Rodriguez wrote:
> Orinoco:
>
> CHECK drivers/net/wireless/orinoco/wext.c
> drivers/net/wireless/orinoco/wext.c:1294:9: warning: context imbalance
> in 'orinoco_ioctl_setibssport' - unexpected unlock
Thanks for the heads up.
I've been staring at setibssport for 5 minutes, and can't see the
alleged imbalance. False positive?
I can't see why sparse picked on setibssport either - half the other
functions in that file do exactly the same.
Dave.
---
PS. since it's short, the full function is:
static int orinoco_ioctl_setibssport(struct net_device *dev,
struct iw_request_info *info,
void *wrqu,
char *extra)
{
struct orinoco_private *priv = ndev_priv(dev);
int val = *((int *) extra);
unsigned long flags;
if (orinoco_lock(priv, &flags) != 0)
return -EBUSY;
priv->ibss_port = val ;
/* Actually update the mode we are using */
set_port_type(priv);
orinoco_unlock(priv, &flags);
return -EINPROGRESS; /* Call commit handler */
}
... and there's no (un)locking in set_port_type
On Fri, 2009-08-14 at 18:30 +0100, Dave wrote:
> I've been staring at setibssport for 5 minutes, and can't see the
> alleged imbalance. False positive?
>
> I can't see why sparse picked on setibssport either - half the other
> functions in that file do exactly the same.
Yeah, I've been there too -- no idea why that particular function trips
up sparse.
johannes
sparse complains about a bad constant expression due to the use of a
dynamic-sized array in get_common_rates(). Allocate and free the array
instead.
Signed-off-by: Andrey Yurovsky <[email protected]>
---
drivers/net/wireless/libertas/assoc.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
index 1902b6f..9834399 100644
--- a/drivers/net/wireless/libertas/assoc.c
+++ b/drivers/net/wireless/libertas/assoc.c
@@ -45,9 +45,14 @@ static int get_common_rates(struct lbs_private *priv,
{
u8 *card_rates = lbs_bg_rates;
int ret = 0, i, j;
- u8 tmp[(ARRAY_SIZE(lbs_bg_rates) - 1) * (*rates_size - 1)];
+ u8 *tmp;
size_t tmp_size = 0;
+ tmp = kzalloc((ARRAY_SIZE(lbs_bg_rates) - 1) * (*rates_size - 1),
+ GFP_KERNEL);
+ if (!tmp)
+ return -1;
+
/* For each rate in card_rates that exists in rate1, copy to tmp */
for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && card_rates[i]; i++) {
for (j = 0; j < *rates_size && rates[j]; j++) {
@@ -75,6 +80,7 @@ done:
memset(rates, 0, *rates_size);
*rates_size = min_t(int, tmp_size, *rates_size);
memcpy(rates, tmp, *rates_size);
+ kfree(tmp);
return ret;
}
--
1.5.6.3
On Fri, Aug 14, 2009 at 8:10 PM, Johannes Berg<[email protected]> wrote:
> On Fri, 2009-08-14 at 18:30 +0100, Dave wrote:
>
>> I've been staring at setibssport for 5 minutes, and can't see the
>> alleged imbalance. False positive?
>>
>> I can't see why sparse picked on setibssport either - half the other
>> functions in that file do exactly the same.
>
> Yeah, I've been there too -- no idea why that particular function trips
> up sparse.
>
> johannes
>
It's literally a sparse warning, then.
--
Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-)
On Thu, 2009-08-13 at 17:34 -0700, Andrey Yurovsky wrote:
> sparse complains about a bad constant expression due to the use of a
> dynamic-sized array in get_common_rates(). Allocate and free the array
> instead.
Mind testing this patch from libertas-dev? It should fix this but also
clears up some of the confustion:
Subject:
Re: Libertas: Association request to
the driver failed
Date:
Wed, 12 Aug 2009 12:34:17 -0500
Signed-off-by: Dan Williams <[email protected]>
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
index 1902b6f..8c05388 100644
--- a/drivers/net/wireless/libertas/assoc.c
+++ b/drivers/net/wireless/libertas/assoc.c
@@ -35,7 +35,8 @@ static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
*
* @param priv A pointer to struct lbs_private structure
* @param rates the buffer which keeps input and output
- * @param rates_size the size of rate1 buffer; new size of buffer on return
+ * @param rates_size the size of rates buffer; new size of buffer on return,
+ * which will be less than or equal to original rates_size
*
* @return 0 on success, or -1 on error
*/
@@ -43,39 +44,42 @@ static int get_common_rates(struct lbs_private *priv,
u8 *rates,
u16 *rates_size)
{
- u8 *card_rates = lbs_bg_rates;
- int ret = 0, i, j;
- u8 tmp[(ARRAY_SIZE(lbs_bg_rates) - 1) * (*rates_size - 1)];
- size_t tmp_size = 0;
-
- /* For each rate in card_rates that exists in rate1, copy to tmp */
- for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && card_rates[i]; i++) {
- for (j = 0; j < *rates_size && rates[j]; j++) {
- if (rates[j] == card_rates[i])
- tmp[tmp_size++] = card_rates[i];
+ int i, j;
+ u8 intersection[MAX_RATES];
+ u16 intersection_size;
+ u16 num_rates = 0;
+
+ intersection_size = min_t(u16, *rates_size, ARRAY_SIZE(intersection));
+
+ /* Allow each rate from 'rates' that is supported by the hardware */
+ for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && lbs_bg_rates[i]; i++) {
+ for (j = 0; j < intersection_size && rates[j]; j++) {
+ if (rates[j] == lbs_bg_rates[i])
+ intersection[num_rates++] = rates[j];
}
}
lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
- lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates,
+ lbs_deb_hex(LBS_DEB_JOIN, "card rates ", lbs_bg_rates,
ARRAY_SIZE(lbs_bg_rates));
- lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
+ lbs_deb_hex(LBS_DEB_JOIN, "common rates", intersection, num_rates);
lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
if (!priv->enablehwauto) {
- for (i = 0; i < tmp_size; i++) {
- if (tmp[i] == priv->cur_rate)
+ for (i = 0; i < num_rates; i++) {
+ if (intersection[i] == priv->cur_rate)
goto done;
}
lbs_pr_alert("Previously set fixed data rate %#x isn't "
"compatible with the network.\n", priv->cur_rate);
- ret = -1;
+ return -1;
}
+
done:
memset(rates, 0, *rates_size);
- *rates_size = min_t(int, tmp_size, *rates_size);
- memcpy(rates, tmp, *rates_size);
- return ret;
+ *rates_size = num_rates;
+ memcpy(rates, intersection, num_rates);
+ return 0;
}
@@ -317,8 +321,8 @@ static int lbs_associate(struct lbs_private *priv,
rates = (struct mrvl_ie_rates_param_set *) pos;
rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
- memcpy(&rates->rates, &bss->rates, MAX_RATES);
- tmplen = min_t(u16, ARRAY_SIZE(rates->rates), MAX_RATES);
+ tmplen = min_t(u16, ARRAY_SIZE(bss->rates), MAX_RATES);
+ memcpy(&rates->rates, &bss->rates, tmplen);
if (get_common_rates(priv, rates->rates, &tmplen)) {
ret = -1;
goto done;
@@ -592,7 +596,7 @@ static int lbs_adhoc_join(struct lbs_private *priv,
/* Copy Data rates from the rates recorded in scan response */
memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates));
- ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), MAX_RATES);
+ ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), ARRAY_SIZE (bss->rates));
memcpy(cmd.bss.rates, bss->rates, ratesize);
if (get_common_rates(priv, cmd.bss.rates, &ratesize)) {
lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n");
Luis R. Rodriguez wrote:
> b43:
>
> CHECK drivers/net/wireless/b43/phy_g.c
> drivers/net/wireless/b43/phy_g.c:974:56: warning: cast truncates bits
> from constant value (ffff7fff becomes 7fff)
>
> ...
>
> CHECK drivers/net/wireless/b43/wa.c
> drivers/net/wireless/b43/wa.c:385:60: warning: cast truncates bits
> from constant value (ffff00ff becomes ff)
> drivers/net/wireless/b43/wa.c:403:55: warning: cast truncates bits
> from constant value (ffff00ff becomes ff)
> drivers/net/wireless/b43/wa.c:405:55: warning: cast truncates bits
> from constant value (ffff00ff becomes ff)
> drivers/net/wireless/b43/wa.c:415:71: warning: cast truncates bits
> from constant value (ffff0fff becomes fff)
I'm aware of these warnings, and I have fixes for all of them. I'm
waiting for the new LP PHY to get checked in as there are a number in
it as well.
Larry