Fix __iomem attribute on msg variable passed to readl() in
the decode_msi_hwirq() function. Fixes the following sparse
warning:
drivers/pci/controller/pcie-iproc-msi.c:301:17: warning: incorrect type in argument 1 (different address spaces)
drivers/pci/controller/pcie-iproc-msi.c:301:17: expected void const volatile [noderef] <asn:2> *addr
drivers/pci/controller/pcie-iproc-msi.c:301:17: got unsigned int [usertype] *[assigned] msg
Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: Andrew Murray <andrew.murray@xxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Ray Jui <rjui@xxxxxxxxxxxx>
Cc: Scott Branden <sbranden@xxxxxxxxxxxx>
Cc: bcm-kernel-feedback-list@xxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
.. (open list)
---
drivers/pci/controller/pcie-iproc-msi.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/pcie-iproc-msi.c b/drivers/pci/controller/pcie-iproc-msi.c
index 0a3f61be5625..3176ad3ab0e5 100644
--- a/drivers/pci/controller/pcie-iproc-msi.c
+++ b/drivers/pci/controller/pcie-iproc-msi.c
@@ -293,11 +293,12 @@ static const struct irq_domain_ops msi_domain_ops = {
static inline u32 decode_msi_hwirq(struct iproc_msi *msi, u32 eq, u32 head)
{
- u32 *msg, hwirq;
+ u32 __iomem *msg;
+ u32 hwirq;
unsigned int offs;
offs = iproc_msi_eq_offset(msi, eq) + head * sizeof(u32);
- msg = (u32 *)(msi->eq_cpu + offs);
+ msg = (u32 __iomem *)(msi->eq_cpu + offs);
hwirq = readl(msg);
hwirq = (hwirq >> 5) + (hwirq & 0x1f);
--
2.23.0
