[PATCH] remoteproc: xlnx: fix typecast warnings

From: Tanmay Shah

Date: Fri Aug 28 2026 - 12:03:49 EST


Fix following sparse warnings by using __force attribute:

sparse warnings: (new ones prefixed by >>)
drivers/remoteproc/xlnx_r5_remoteproc.c:571:20: sparse: sparse:
cast removes address space '__iomem' of expression
drivers/remoteproc/xlnx_r5_remoteproc.c:749:17: sparse: sparse:
cast removes address space '__iomem' of expression
drivers/remoteproc/xlnx_r5_remoteproc.c:773:24: sparse: sparse:
cast removes address space '__iomem' of expression
drivers/remoteproc/xlnx_r5_remoteproc.c:797:25: sparse: sparse:
cast removes address space '__iomem' of expression

>> drivers/remoteproc/xlnx_r5_remoteproc.c:837:49: sparse: sparse:
incorrect type in initializer (different address spaces) @@ expected
void *rsc_offset @@ got void [noderef] __iomem * @@
drivers/remoteproc/xlnx_r5_remoteproc.c:837:49: sparse:
expected void *rsc_offset
drivers/remoteproc/xlnx_r5_remoteproc.c:837:49: sparse: got
void [noderef] __iomem *

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202608190009.uCbYi1Y5-lkp@xxxxxxxxx/
Signed-off-by: Tanmay Shah <tanmay.shah@xxxxxxx>
---
drivers/remoteproc/xlnx_r5_remoteproc.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/remoteproc/xlnx_r5_remoteproc.c b/drivers/remoteproc/xlnx_r5_remoteproc.c
index c685bb5fa62c..f9cdd3c024dc 100644
--- a/drivers/remoteproc/xlnx_r5_remoteproc.c
+++ b/drivers/remoteproc/xlnx_r5_remoteproc.c
@@ -568,7 +568,7 @@ static int tcm_mem_map(struct rproc *rproc,
return -ENOMEM;

/* Update memory entry va */
- mem->va = (void *)va;
+ mem->va = (__force void *)va;

/* clear TCMs */
memset_io(va, 0, mem->len);
@@ -746,7 +746,7 @@ static struct resource_table *zynqmp_r5_get_loaded_rsc_table(struct rproc *rproc

*size = r5_core->rsc_tbl_size;

- return (struct resource_table *)r5_core->rsc_tbl_va;
+ return (__force struct resource_table *)r5_core->rsc_tbl_va;
}

static int zynqmp_r5_get_rsc_table_va(struct zynqmp_r5_core *r5_core)
@@ -770,7 +770,7 @@ static int zynqmp_r5_get_rsc_table_va(struct zynqmp_r5_core *r5_core)
return -EINVAL;
}

- rsc_data_va = (struct rsc_tbl_data *)ioremap_wc(res_mem.start,
+ rsc_data_va = (__force struct rsc_tbl_data *)ioremap_wc(res_mem.start,
sizeof(struct rsc_tbl_data));
if (!rsc_data_va) {
dev_err(dev, "failed to map resource table data address\n");
@@ -794,7 +794,7 @@ static int zynqmp_r5_get_rsc_table_va(struct zynqmp_r5_core *r5_core)
return -EINVAL;
}

- rsc_tbl_addr = (struct resource_table *)r5_core->rsc_tbl_va;
+ rsc_tbl_addr = (__force struct resource_table *)r5_core->rsc_tbl_va;

/*
* As of now resource table version 1 is expected. Don't fail to attach
@@ -834,7 +834,7 @@ static int zynqmp_r5_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc,
int offset, int avail)
{
struct zynqmp_r5_core *r5_core = rproc->priv;
- void *rsc_offset = (r5_core->rsc_tbl_va + offset);
+ void *rsc_offset = (__force void *)(r5_core->rsc_tbl_va + offset);

if (rsc_type != XLNX_RPROC_FW_CRASH_REPORT)
return RSC_IGNORED;

base-commit: d4d61a4b0a52e8f3cdb3e1578602850a3452ec3e
--
2.43.0