This patch fix the following sparse warnings in slicoss driver:
warning: incorrect type in assignment (different address spaces)
Signed-off-by: Sergio Paracuellos <[email protected]>
---
drivers/staging/slicoss/slic.h | 7 ++++
drivers/staging/slicoss/slicoss.c | 83 ++++++++++++++++++++++-----------------
2 files changed, 55 insertions(+), 35 deletions(-)
diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index 420546d..f76c0cd 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -540,6 +540,13 @@ static inline void slic_flush_write(struct adapter *adapter)
ioread32(adapter->regs + SLIC_REG_HOSTID);
}
+#define IOMEM_GET_FIELDADDR(base, member) \
+({ \
+ char __iomem *_base = (char __iomem *)base; \
+ _base += offsetof(typeof(*base), member); \
+ (void __iomem *)_base; \
+})
+
#define UPDATE_STATS(largestat, newstat, oldstat) \
{ \
if ((newstat) < (oldstat)) \
diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index d2929b9..0e1bf5d 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -923,8 +923,8 @@ static int slic_upr_request(struct adapter *adapter,
static void slic_link_upr_complete(struct adapter *adapter, u32 isr)
{
struct slic_shmemory *sm = &adapter->shmem;
- struct slic_shmem_data *sm_data = sm->shmem_data;
- u32 lst = sm_data->lnkstatus;
+ struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
+ u32 lst = ioread32(&sm_data->lnkstatus);
uint linkup;
unsigned char linkspeed;
unsigned char linkduplex;
@@ -1003,8 +1003,9 @@ static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
switch (upr->upr_request) {
case SLIC_UPR_STATS: {
struct slic_shmemory *sm = &adapter->shmem;
- struct slic_shmem_data *sm_data = sm->shmem_data;
- struct slic_stats *stats = &sm_data->stats;
+ struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
+ struct slic_stats __iomem *stats = IOMEM_GET_FIELDADDR(sm_data,
+ stats);
struct slic_stats *old = &adapter->inicstats_prev;
struct slicnet_stats *stst = &adapter->slic_stats;
@@ -1014,50 +1015,62 @@ static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
break;
}
- UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs, stats->xmit_tcp_segs,
+ UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
+ ioread64(&stats->xmit_tcp_segs),
old->xmit_tcp_segs);
- UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes, stats->xmit_tcp_bytes,
+ UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
+ ioread64(&stats->xmit_tcp_bytes),
old->xmit_tcp_bytes);
- UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs, stats->rcv_tcp_segs,
+ UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
+ ioread64(&stats->rcv_tcp_segs),
old->rcv_tcp_segs);
- UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes, stats->rcv_tcp_bytes,
+ UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes,
+ ioread64(&stats->rcv_tcp_bytes),
old->rcv_tcp_bytes);
- UPDATE_STATS_GB(stst->iface.xmt_bytes, stats->xmit_bytes,
+ UPDATE_STATS_GB(stst->iface.xmt_bytes,
+ ioread64(&stats->xmit_bytes),
old->xmit_bytes);
- UPDATE_STATS_GB(stst->iface.xmt_ucast, stats->xmit_unicasts,
+ UPDATE_STATS_GB(stst->iface.xmt_ucast,
+ ioread64(&stats->xmit_unicasts),
old->xmit_unicasts);
- UPDATE_STATS_GB(stst->iface.rcv_bytes, stats->rcv_bytes,
+ UPDATE_STATS_GB(stst->iface.rcv_bytes,
+ ioread64(&stats->rcv_bytes),
old->rcv_bytes);
- UPDATE_STATS_GB(stst->iface.rcv_ucast, stats->rcv_unicasts,
+ UPDATE_STATS_GB(stst->iface.rcv_ucast,
+ ioread64(&stats->rcv_unicasts),
old->rcv_unicasts);
- UPDATE_STATS_GB(stst->iface.xmt_errors, stats->xmit_collisions,
+ UPDATE_STATS_GB(stst->iface.xmt_errors,
+ ioread64(&stats->xmit_collisions),
old->xmit_collisions);
UPDATE_STATS_GB(stst->iface.xmt_errors,
- stats->xmit_excess_collisions,
+ ioread64(&stats->xmit_excess_collisions),
old->xmit_excess_collisions);
- UPDATE_STATS_GB(stst->iface.xmt_errors, stats->xmit_other_error,
+ UPDATE_STATS_GB(stst->iface.xmt_errors,
+ ioread64(&stats->xmit_other_error),
old->xmit_other_error);
- UPDATE_STATS_GB(stst->iface.rcv_errors, stats->rcv_other_error,
+ UPDATE_STATS_GB(stst->iface.rcv_errors,
+ ioread64(&stats->rcv_other_error),
old->rcv_other_error);
- UPDATE_STATS_GB(stst->iface.rcv_discards, stats->rcv_drops,
+ UPDATE_STATS_GB(stst->iface.rcv_discards,
+ ioread64(&stats->rcv_drops),
old->rcv_drops);
- if (stats->rcv_drops > old->rcv_drops)
- adapter->rcv_drops += (stats->rcv_drops -
+ if (ioread64(&stats->rcv_drops) > old->rcv_drops)
+ adapter->rcv_drops += (ioread64(&stats->rcv_drops) -
old->rcv_drops);
- memcpy(old, stats, sizeof(*stats));
+ memcpy_fromio(old, stats, sizeof(*stats));
break;
}
case SLIC_UPR_RLSR:
@@ -1679,10 +1692,10 @@ static void slic_init_cleanup(struct adapter *adapter)
if (adapter->shmem.shmem_data) {
struct slic_shmemory *sm = &adapter->shmem;
- struct slic_shmem_data *sm_data = sm->shmem_data;
+ struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
- pci_free_consistent(adapter->pcidev, sizeof(*sm_data), sm_data,
- sm->isr_phaddr);
+ pci_free_consistent(adapter->pcidev, sizeof(*sm_data),
+ (void __force *)sm_data, sm->isr_phaddr);
}
if (adapter->pingtimerset) {
@@ -2068,15 +2081,15 @@ static irqreturn_t slic_interrupt(int irq, void *dev_id)
struct net_device *dev = dev_id;
struct adapter *adapter = netdev_priv(dev);
struct slic_shmemory *sm = &adapter->shmem;
- struct slic_shmem_data *sm_data = sm->shmem_data;
+ struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
u32 isr;
- if (sm_data->isr) {
+ if (ioread32(&sm_data->isr)) {
slic_write32(adapter, SLIC_REG_ICR, ICR_INT_MASK);
slic_flush_write(adapter);
- isr = sm_data->isr;
- sm_data->isr = 0;
+ isr = ioread32(&sm_data->isr);
+ iowrite32(0, &sm_data->isr);
adapter->num_isrs++;
switch (adapter->card->state) {
case CARD_UP:
@@ -2211,7 +2224,7 @@ static int slic_if_init(struct adapter *adapter, unsigned long *flags)
struct sliccard *card = adapter->card;
struct net_device *dev = adapter->netdev;
struct slic_shmemory *sm = &adapter->shmem;
- struct slic_shmem_data *sm_data = sm->shmem_data;
+ struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
int rc;
/* adapter should be down at this point */
@@ -2295,7 +2308,7 @@ static int slic_if_init(struct adapter *adapter, unsigned long *flags)
/*
* clear any pending events, then enable interrupts
*/
- sm_data->isr = 0;
+ iowrite32(0, &sm_data->isr);
slic_write32(adapter, SLIC_REG_ISR, 0);
slic_write32(adapter, SLIC_REG_ICR, ICR_INT_ON);
@@ -2584,7 +2597,7 @@ static void slic_config_pci(struct pci_dev *pcidev)
static int slic_card_init(struct sliccard *card, struct adapter *adapter)
{
struct slic_shmemory *sm = &adapter->shmem;
- struct slic_shmem_data *sm_data = sm->shmem_data;
+ struct slic_shmem_data __iomem *sm_data = sm->shmem_data;
struct slic_eeprom *peeprom;
struct oslic_eeprom *pOeeprom;
dma_addr_t phys_config;
@@ -2647,9 +2660,9 @@ static int slic_card_init(struct sliccard *card, struct adapter *adapter)
}
for (;;) {
- if (sm_data->isr) {
- if (sm_data->isr & ISR_UPC) {
- sm_data->isr = 0;
+ if (ioread32(&sm_data->isr)) {
+ if (ioread32(&sm_data->isr) & ISR_UPC) {
+ iowrite32(0, &sm_data->isr);
slic_write64(adapter, SLIC_REG_ISP, 0,
0);
slic_write32(adapter, SLIC_REG_ISR, 0);
@@ -2659,7 +2672,7 @@ static int slic_card_init(struct sliccard *card, struct adapter *adapter)
break;
}
- sm_data->isr = 0;
+ iowrite32(0, &sm_data->isr);
slic_write32(adapter, SLIC_REG_ISR, 0);
slic_flush_write(adapter);
} else {
@@ -2862,7 +2875,7 @@ static int slic_init_adapter(struct net_device *netdev,
if (!sm_data)
return -ENOMEM;
- sm->shmem_data = sm_data;
+ sm->shmem_data = (struct slic_shmem_data __force __iomem *)sm_data;
sm->isr_phaddr = phaddr;
sm->lnkstatus_phaddr = phaddr + offsetof(struct slic_shmem_data,
lnkstatus);
--
1.9.1
On Tue, Nov 15, 2016 at 06:19:37PM +0100, Sergio Paracuellos wrote:
> This patch fix the following sparse warnings in slicoss driver:
> warning: incorrect type in assignment (different address spaces)
>
> Signed-off-by: Sergio Paracuellos <[email protected]>
> ---
> drivers/staging/slicoss/slic.h | 7 ++++
> drivers/staging/slicoss/slicoss.c | 83 ++++++++++++++++++++++-----------------
> 2 files changed, 55 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
> index 420546d..f76c0cd 100644
> --- a/drivers/staging/slicoss/slic.h
> +++ b/drivers/staging/slicoss/slic.h
> @@ -540,6 +540,13 @@ static inline void slic_flush_write(struct adapter *adapter)
> ioread32(adapter->regs + SLIC_REG_HOSTID);
> }
>
> +#define IOMEM_GET_FIELDADDR(base, member) \
> +({ \
> + char __iomem *_base = (char __iomem *)base; \
> + _base += offsetof(typeof(*base), member); \
> + (void __iomem *)_base; \
> +})
Really? Why? Shouldn't you be marking base as __iomem all the time?
That way you don't need this mess of a cast.
thanks,
greg k-h
Hi Sergio,
[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.9-rc5 next-20161115]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Sergio-Paracuellos/staging-slicoss-fix-different-address-space-warnings/20161116-025006
config: i386-randconfig-x003-201646 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
In file included from drivers/staging/slicoss/slicoss.c:97:0:
drivers/staging/slicoss/slicoss.c: In function 'slic_upr_request_complete':
>> drivers/staging/slicoss/slicoss.c:1019:5: error: implicit declaration of function 'ioread64' [-Werror=implicit-function-declaration]
ioread64(&stats->xmit_tcp_segs),
^
drivers/staging/slicoss/slic.h:560:19: note: in definition of macro 'UPDATE_STATS_GB'
(largestat) += ((newstat) - (oldstat)); \
^~~~~~~
cc1: some warnings being treated as errors
vim +/ioread64 +1019 drivers/staging/slicoss/slicoss.c
1013 dev_err(&adapter->netdev->dev,
1014 "SLIC_UPR_STATS command failed isr[%x]\n", isr);
1015 break;
1016 }
1017
1018 UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
> 1019 ioread64(&stats->xmit_tcp_segs),
1020 old->xmit_tcp_segs);
1021
1022 UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
Hi Sergio,
[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.9-rc5 next-20161115]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Sergio-Paracuellos/staging-slicoss-fix-different-address-space-warnings/20161116-025006
config: x86_64-acpi-redef (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/built-in.o: In function `slic_upr_request_complete':
>> slicoss.c:(.text+0x6830c7): undefined reference to `ioread64'
slicoss.c:(.text+0x6830e4): undefined reference to `ioread64'
slicoss.c:(.text+0x683102): undefined reference to `ioread64'
slicoss.c:(.text+0x683120): undefined reference to `ioread64'
slicoss.c:(.text+0x68313e): undefined reference to `ioread64'
drivers/built-in.o:slicoss.c:(.text+0x68315c): more undefined references to `ioread64' follow
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
This can't be right... ->shmem_data is set in slic_init_adapter() and
it's not iomem.
regards,
dan carpenter