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mailbox: arm_mhuv2: Fix sparse warnings 

This patch fixes a bunch of sparse warnings in the newly added arm_mhuv2
driver.

drivers/mailbox/arm_mhuv2.c:506:24: warning: incorrect type in argument 1 (different address spaces)
drivers/mailbox/arm_mhuv2.c:506:24:    expected void const volatile [noderef] __iomem *addr
drivers/mailbox/arm_mhuv2.c:506:24:    got unsigned int [usertype] *
drivers/mailbox/arm_mhuv2.c:547:42: warning: incorrect type in argument 2 (different address spaces)
drivers/mailbox/arm_mhuv2.c:547:42:    expected unsigned int [usertype] *reg
drivers/mailbox/arm_mhuv2.c:547:42:    got unsigned int [noderef] __iomem *
drivers/mailbox/arm_mhuv2.c:625:42: warning: incorrect type in argument 2 (different address spaces)
drivers/mailbox/arm_mhuv2.c:625:42:    expected unsigned int [usertype] *reg
drivers/mailbox/arm_mhuv2.c:625:42:    got unsigned int [noderef] __iomem *
drivers/mailbox/arm_mhuv2.c:972:24: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:973:22: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:993:25: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:1026:24: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:1027:22: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:1048:17: warning: dereference of noderef expression

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Viresh Kumar 2020-12-30 10:12:04 +05:30 committed by Jassi Brar
parent c319f78cba
commit af59bcff8a
1 changed files with 11 additions and 11 deletions
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22
drivers/mailbox/arm_mhuv2.c
View File

@ -238,19 +238,19 @@ struct mhuv2_mbox_chan_priv {
};
/* Macro for reading a bitfield within a physically mapped packed struct */
#define readl_relaxed_bitfield(_regptr, _field) \
#define readl_relaxed_bitfield(_regptr, _type, _field) \
({ \
u32 _regval; \
_regval = readl_relaxed((_regptr)); \
(*(typeof((_regptr)))(&_regval))._field; \
(*(_type *)(&_regval))._field; \
})
/* Macro for writing a bitfield within a physically mapped packed struct */
#define writel_relaxed_bitfield(_value, _regptr, _field) \
#define writel_relaxed_bitfield(_value, _regptr, _type, _field) \
({ \
u32 _regval; \
_regval = readl_relaxed(_regptr); \
(*(typeof(_regptr))(&_regval))._field = _value; \
(*(_type *)(&_regval))._field = _value; \
writel_relaxed(_regval, _regptr); \
})
@ -496,7 +496,7 @@ static const struct mhuv2_protocol_ops mhuv2_data_transfer_ops = {
/* Interrupt handlers */
static struct mbox_chan *get_irq_chan_comb(struct mhuv2 *mhu, u32 *reg)
static struct mbox_chan *get_irq_chan_comb(struct mhuv2 *mhu, u32 __iomem *reg)
{
struct mbox_chan *chans = mhu->mbox.chans;
int channel = 0, i, offset = 0, windows, protocol, ch_wn;
@ -969,8 +969,8 @@ static int mhuv2_tx_init(struct amba_device *adev, struct mhuv2 *mhu,
mhu->mbox.ops = &mhuv2_sender_ops;
mhu->send = reg;
mhu->windows = readl_relaxed_bitfield(&mhu->send->mhu_cfg, num_ch);
mhu->minor = readl_relaxed_bitfield(&mhu->send->aidr, arch_minor_rev);
mhu->windows = readl_relaxed_bitfield(&mhu->send->mhu_cfg, struct mhu_cfg_t, num_ch);
mhu->minor = readl_relaxed_bitfield(&mhu->send->aidr, struct aidr_t, arch_minor_rev);
spin_lock_init(&mhu->doorbell_pending_lock);
@ -990,7 +990,7 @@ static int mhuv2_tx_init(struct amba_device *adev, struct mhuv2 *mhu,
mhu->mbox.txdone_poll = false;
mhu->irq = adev->irq[0];
writel_relaxed_bitfield(1, &mhu->send->int_en, chcomb);
writel_relaxed_bitfield(1, &mhu->send->int_en, struct int_en_t, chcomb);
/* Disable all channel interrupts */
for (i = 0; i < mhu->windows; i++)
@ -1023,8 +1023,8 @@ static int mhuv2_rx_init(struct amba_device *adev, struct mhuv2 *mhu,
mhu->mbox.ops = &mhuv2_receiver_ops;
mhu->recv = reg;
mhu->windows = readl_relaxed_bitfield(&mhu->recv->mhu_cfg, num_ch);
mhu->minor = readl_relaxed_bitfield(&mhu->recv->aidr, arch_minor_rev);
mhu->windows = readl_relaxed_bitfield(&mhu->recv->mhu_cfg, struct mhu_cfg_t, num_ch);
mhu->minor = readl_relaxed_bitfield(&mhu->recv->aidr, struct aidr_t, arch_minor_rev);
mhu->irq = adev->irq[0];
if (!mhu->irq) {
@ -1045,7 +1045,7 @@ static int mhuv2_rx_init(struct amba_device *adev, struct mhuv2 *mhu,
writel_relaxed(0xFFFFFFFF, &mhu->recv->ch_wn[i].mask_set);
if (mhu->minor)
writel_relaxed_bitfield(1, &mhu->recv->int_en, chcomb);
writel_relaxed_bitfield(1, &mhu->recv->int_en, struct int_en_t, chcomb);
return 0;
}