[PATCH v2 02/13] staging: hikey9xx: hisi-spmi-controller: clean sparse warnings

Mauro Carvalho Chehab
2021-01-18T13:29:38Z

Sparse complains about __be32 conversions:

drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:164:24: warning: cast to restricted __be32
drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:164:24: warning: cast to restricted __be32
drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:164:24: warning: cast to restricted __be32
drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:164:24: warning: cast to restricted __be32
drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:164:24: warning: cast to restricted __be32
drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:164:24: warning: cast to restricted __be32
drivers/spmi/hisi-spmi-controller.c drivers/spmi/hisi-spmi-controller.c:239:17: warning: cast from restricted __be32

The conversions there are valid ones. So, add __force macro
to disable such warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
drivers/staging/hikey9xx/hisi-spmi-controller.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/hikey9xx/hisi-spmi-controller.c b/drivers/staging/hikey9xx/hisi-spmi-controller.c
index f831c43f4783..4be2344ad7b5 100644
--- a/drivers/staging/hikey9xx/hisi-spmi-controller.c
+++ b/drivers/staging/hikey9xx/hisi-spmi-controller.c
@@ -161,7 +161,7 @@ static int spmi_read_cmd(struct spmi_controller *ctrl,
SPMI_SLAVE_OFFSET * slave_id +
SPMI_APB_SPMI_RDATA0_BASE_ADDR +
i * SPMI_PER_DATAREG_BYTE);
- data = be32_to_cpu((__be32)data);
+ data = be32_to_cpu((__force __be32)data);
if ((bc - i * SPMI_PER_DATAREG_BYTE) >> 2) {
memcpy(buf, &data, sizeof(data));
buf += sizeof(data);
@@ -236,7 +236,7 @@ static int spmi_write_cmd(struct spmi_controller *ctrl,
buf += (bc % SPMI_PER_DATAREG_BYTE);
}

- writel((u32)cpu_to_be32(data),
+ writel((__force u32)cpu_to_be32(data),
spmi_controller->base + chnl_ofst +
SPMI_APB_SPMI_WDATA0_BASE_ADDR +
SPMI_PER_DATAREG_BYTE * i);
--
2.29.2