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Date: Tue, 23 Sep 2014 16:30:24 +0530
From: Sudip Mukherjee <sudipm.mukherjee@...il.com>
To: Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>
Cc: Sudip Mukherjee <sudipm.mukherjee@...il.com>,
alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 5/5] ALSA: ctxfi: sparse warning
fixed sparse warning of incorrect type (different address spaces) in
cthw20k1.c and cthw20k2.c which was being actually caused as mem_base
was of the type unsigned long.
Again as mem_base was previously unsigned long , so it required many
typecasts in the code to convert interger to pointer.
Now after giving the correct type of mem_base as void __iomem *
we can also remove those typecasts maintaining the same functionality
and logic of the code.
Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
sound/pci/ctxfi/cthardware.h | 2 +-
sound/pci/ctxfi/cthw20k1.c | 6 +++---
sound/pci/ctxfi/cthw20k2.c | 12 ++++++------
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/sound/pci/ctxfi/cthardware.h b/sound/pci/ctxfi/cthardware.h
index 940bbd0..0be24f7 100644
--- a/sound/pci/ctxfi/cthardware.h
+++ b/sound/pci/ctxfi/cthardware.h
@@ -188,7 +188,7 @@ struct hw {
struct snd_card *card; /* pointer to this card */
int irq;
unsigned long io_base;
- unsigned long mem_base;
+ void __iomem *mem_base;
enum CHIPTYP chip_type;
enum CTCARDS model;
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
index b807391..b425aa8 100644
--- a/sound/pci/ctxfi/cthw20k1.c
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -1803,7 +1803,7 @@ static int uaa_to_xfi(struct pci_dev *pci)
unsigned int is_uaa;
unsigned int data[4] = {0};
unsigned int io_base;
- void *mem_base;
+ void __iomem *mem_base;
int i;
const u32 CTLX = CTLBITS('C', 'T', 'L', 'X');
const u32 CTL_ = CTLBITS('C', 'T', 'L', '-');
@@ -1987,9 +1987,9 @@ static int hw_card_shutdown(struct hw *hw)
hw->irq = -1;
if (hw->mem_base)
- iounmap((void *)hw->mem_base);
+ iounmap(hw->mem_base);
- hw->mem_base = (unsigned long)NULL;
+ hw->mem_base = NULL;
if (hw->io_base)
pci_release_regions(hw->pci);
diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
index 144fab6..253899d 100644
--- a/sound/pci/ctxfi/cthw20k2.c
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -2050,8 +2050,8 @@ static int hw_card_start(struct hw *hw)
goto error1;
hw->io_base = pci_resource_start(hw->pci, 2);
- hw->mem_base = (unsigned long)ioremap(hw->io_base,
- pci_resource_len(hw->pci, 2));
+ hw->mem_base = ioremap(hw->io_base,
+ pci_resource_len(hw->pci, 2));
if (!hw->mem_base) {
err = -ENOENT;
goto error2;
@@ -2112,9 +2112,9 @@ static int hw_card_shutdown(struct hw *hw)
hw->irq = -1;
if (hw->mem_base)
- iounmap((void *)hw->mem_base);
+ iounmap(hw->mem_base);
- hw->mem_base = (unsigned long)NULL;
+ hw->mem_base = NULL;
if (hw->io_base)
pci_release_regions(hw->pci);
@@ -2234,12 +2234,12 @@ static int hw_resume(struct hw *hw, struct card_conf *info)
static u32 hw_read_20kx(struct hw *hw, u32 reg)
{
- return readl((void *)(hw->mem_base + reg));
+ return readl(hw->mem_base + reg);
}
static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
{
- writel(data, (void *)(hw->mem_base + reg));
+ writel(data, hw->mem_base + reg);
}
static struct hw ct20k2_preset = {
--
1.8.1.2
--
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