From: Peng Sun <sironhide0null@gmail.com>
To: liodot@gmail.com, charrer@alacritech.com, gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org, Peng Sun <sironhide0null@gmail.com>
Subject: [PATCH 1/7] staging: slicoss: slicoss.c: fix different address space sparse warning
Date: Fri, 16 Sep 2016 19:05:46 -0700 [thread overview]
Message-ID: <1474077952-9265-2-git-send-email-sironhide0null@gmail.com> (raw)
In-Reply-To: <1474077952-9265-1-git-send-email-sironhide0null@gmail.com>
add IOMEM_GET_FIELD32 to get u32 value of a member of a __iomem structure;
Signed-off-by: Peng Sun <sironhide0null@gmail.com>
---
drivers/staging/slicoss/slic.h | 7 +++++++
drivers/staging/slicoss/slicoss.c | 4 ++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index fe1d2ce..022e7f6 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -539,6 +539,13 @@ static inline void slic_flush_write(struct adapter *adapter)
ioread32(adapter->regs + SLIC_REG_HOSTID);
}
+#define IOMEM_GET_FIELD32(base, member) \
+({ \
+ char __iomem *_base = (char __iomem *)base; \
+ _base += offsetof(typeof(*base), member); \
+ ioread32(_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 21280a3..929a0d5 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -924,8 +924,8 @@ err_unlock_irq:
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 = IOMEM_GET_FIELD32(sm_data, lnkstatus);
uint linkup;
unsigned char linkspeed;
unsigned char linkduplex;
--
2.7.4
next prev parent reply other threads:[~2016-09-17 2:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-17 2:05 [PATCH 0/7] staging: slicoss: fix different address space sparse warnings Peng Sun
2016-09-17 2:05 ` Peng Sun [this message]
2016-09-17 2:05 ` [PATCH 2/7] staging: slicoss: slicoss.c: fix different address space sparse warning Peng Sun
2016-09-17 2:05 ` [PATCH 3/7] " Peng Sun
2016-09-17 2:05 ` [PATCH 4/7] " Peng Sun
2016-09-17 2:05 ` [PATCH 5/7] " Peng Sun
2016-09-17 2:05 ` [PATCH 6/7] " Peng Sun
2016-09-17 2:05 ` [PATCH 7/7] " Peng Sun
2016-09-17 8:30 ` Greg KH
2016-09-17 8:30 ` [PATCH 0/7] staging: slicoss: fix different address space sparse warnings Greg KH
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