[PATCH] soc: qcom: smp2p: fix __iomem annotation on entry->value pointer
From: Ben Dooks
Date: Tue Jun 23 2026 - 05:05:28 EST
The entry->value is passed to readl() so should be marked __iomem
so remove these sparse warnings by marking it __iomem and do the
relevant casting to ensure no further warnings:
drivers/soc/qcom/smp2p.c:280:64: warning: incorrect type in argument 1 (different address spaces)
drivers/soc/qcom/smp2p.c:280:64: expected void const volatile [noderef] __iomem *addr
drivers/soc/qcom/smp2p.c:280:64: got unsigned int [usertype] *value
drivers/soc/qcom/smp2p.c:318:34: warning: incorrect type in argument 1 (different address spaces)
drivers/soc/qcom/smp2p.c:318:34: expected void const volatile [noderef] __iomem *addr
drivers/soc/qcom/smp2p.c:318:34: got unsigned int [usertype] *value
drivers/soc/qcom/smp2p.c:446:26: warning: incorrect type in argument 1 (different address spaces)
drivers/soc/qcom/smp2p.c:446:26: expected void const volatile [noderef] __iomem *addr
drivers/soc/qcom/smp2p.c:446:26: got unsigned int [usertype] *value
drivers/soc/qcom/smp2p.c:501:33: warning: incorrect type in argument 1 (different address spaces)
drivers/soc/qcom/smp2p.c:501:33: expected void const volatile [noderef] __iomem *addr
drivers/soc/qcom/smp2p.c:501:33: got unsigned int [usertype] *value
drivers/soc/qcom/smp2p.c:504:26: warning: incorrect type in argument 2 (different address spaces)
drivers/soc/qcom/smp2p.c:504:26: expected void volatile [noderef] __iomem *addr
drivers/soc/qcom/smp2p.c:504:26: got unsigned int [usertype] *value
Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
drivers/soc/qcom/smp2p.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/soc/qcom/smp2p.c b/drivers/soc/qcom/smp2p.c
index af0ceeaf6e07..fef6f17c3257 100644
--- a/drivers/soc/qcom/smp2p.c
+++ b/drivers/soc/qcom/smp2p.c
@@ -102,7 +102,7 @@ struct smp2p_entry {
struct qcom_smp2p *smp2p;
const char *name;
- u32 *value;
+ u32 __iomem *value;
u32 last_value;
struct irq_domain *domain;
@@ -276,7 +276,7 @@ static void qcom_smp2p_start_in(struct qcom_smp2p *smp2p)
list_for_each_entry(entry, &smp2p->inbound, node) {
memcpy(buf, in->entries[i].name, sizeof(buf));
if (!strcmp(buf, entry->name)) {
- entry->value = &in->entries[i].value;
+ entry->value = (u32 __iomem *)&in->entries[i].value;
entry->last_value = readl(entry->value);
break;
}
@@ -302,7 +302,7 @@ static void qcom_smp2p_notify_in(struct qcom_smp2p *smp2p)
list_for_each_entry(entry, &smp2p->inbound, node) {
memcpy(buf, in->entries[i].name, sizeof(buf));
if (!strcmp(buf, entry->name)) {
- entry->value = &in->entries[i].value;
+ entry->value = (u32 __iomem *)&in->entries[i].value;
break;
}
}
@@ -528,7 +528,7 @@ static int qcom_smp2p_outbound_entry(struct qcom_smp2p *smp2p,
memcpy(out->entries[out->valid_entries].name, buf, SMP2P_MAX_ENTRY_NAME);
/* Make the logical entry reference the physical value */
- entry->value = &out->entries[out->valid_entries].value;
+ entry->value = (u32 __iomem *)&out->entries[out->valid_entries].value;
out->valid_entries++;
--
2.37.2.352.g3c44437643