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mailbox: stm32-ipcc: cast void pointers to unsigned long 

Now that the driver can be enabled by COMPILE_TEST, we see warnings on
64bit platforms when void pointers are cast to unsigned int (and
vice versa).

warning: cast to smaller integer type 'unsigned int' from 'void *'
           unsigned int chan = (unsigned int)link->con_priv;
...
warning: cast to 'void *' from smaller integer type 'unsigned int'
           ipcc->controller.chans[i].con_priv = (void *)i;

Update these casts to use unsigned long variables, which are the same
size as pointers on all platforms.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Martin Kaiser 2020-11-29 19:52:28 +01:00 committed by Jassi Brar
parent 133af21f7c
commit 017909281e
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/mailbox/stm32-ipcc.c
View File

@ -144,11 +144,11 @@ static irqreturn_t stm32_ipcc_tx_irq(int irq, void *data)
static int stm32_ipcc_send_data(struct mbox_chan *link, void *data)
{
unsigned int chan = (unsigned int)link->con_priv;
unsigned long chan = (unsigned long)link->con_priv;
struct stm32_ipcc *ipcc = container_of(link->mbox, struct stm32_ipcc,
controller);
dev_dbg(ipcc->controller.dev, "%s: chan:%d\n", __func__, chan);
dev_dbg(ipcc->controller.dev, "%s: chan:%lu\n", __func__, chan);
/* set channel n occupied */
stm32_ipcc_set_bits(&ipcc->lock, ipcc->reg_proc + IPCC_XSCR,
@ -163,7 +163,7 @@ static int stm32_ipcc_send_data(struct mbox_chan *link, void *data)
static int stm32_ipcc_startup(struct mbox_chan *link)
{
unsigned int chan = (unsigned int)link->con_priv;
unsigned long chan = (unsigned long)link->con_priv;
struct stm32_ipcc *ipcc = container_of(link->mbox, struct stm32_ipcc,
controller);
int ret;
@ -183,7 +183,7 @@ static int stm32_ipcc_startup(struct mbox_chan *link)
static void stm32_ipcc_shutdown(struct mbox_chan *link)
{
unsigned int chan = (unsigned int)link->con_priv;
unsigned long chan = (unsigned long)link->con_priv;
struct stm32_ipcc *ipcc = container_of(link->mbox, struct stm32_ipcc,
controller);
@ -206,7 +206,7 @@ static int stm32_ipcc_probe(struct platform_device *pdev)
struct device_node *np = dev->of_node;
struct stm32_ipcc *ipcc;
struct resource *res;
unsigned int i;
unsigned long i;
int ret;
u32 ip_ver;
static const char * const irq_name[] = {"rx", "tx"};
@ -265,7 +265,7 @@ static int stm32_ipcc_probe(struct platform_device *pdev)
irq_thread[i], IRQF_ONESHOT,
dev_name(dev), ipcc);
if (ret) {
dev_err(dev, "failed to request irq %d (%d)\n", i, ret);
dev_err(dev, "failed to request irq %lu (%d)\n", i, ret);
goto err_clk;
}
}