linux-kernel - [PATCH] powercap: intel_rapl

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Date:   Tue,  4 Jul 2023 13:02:38 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     linux-pm@...r.kernel.org, rafael.j.wysocki@...el.com
Cc:     daniel.lezcano@...aro.org, linux-kernel@...r.kernel.org,
        lkp@...el.com
Subject: [PATCH] powercap: intel_rapl_tpmi: Fix a sparse warning

Fix a sparse warning in intel_rapl_tpmi driver.

../drivers/powercap/intel_rapl_tpmi.c:141:41: sparse: warning: incorrect type in initializer (different address spaces)
../drivers/powercap/intel_rapl_tpmi.c:141:41: sparse:    expected unsigned long long [usertype] *tpmi_rapl_regs
../drivers/powercap/intel_rapl_tpmi.c:141:41: sparse:    got void [noderef] __iomem *

Fixes: 9eef7f9da928 ("powercap: intel_rapl: Introduce RAPL TPMI interface driver")
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307031405.dy3druuy-lkp@intel.com/
Signed-off-by: Zhang Rui <rui.zhang@...el.com>
---
 drivers/powercap/intel_rapl_tpmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/powercap/intel_rapl_tpmi.c b/drivers/powercap/intel_rapl_tpmi.c
index 4f4f13ded225..05f664a096ab 100644
--- a/drivers/powercap/intel_rapl_tpmi.c
+++ b/drivers/powercap/intel_rapl_tpmi.c
@@ -138,7 +138,7 @@ static int parse_one_domain(struct tpmi_rapl_package *trp, u32 offset)
 	enum tpmi_rapl_register reg_index;
 	enum rapl_domain_reg_id reg_id;
 	int tpmi_domain_size, tpmi_domain_flags;
-	u64 *tpmi_rapl_regs = trp->base + offset;
+	u64 *tpmi_rapl_regs = (u64 *)(trp->base + offset);
 	u64 tpmi_domain_header = readq((void __iomem *)tpmi_rapl_regs);
 
 	/* Domain Parent bits are ignored for now */
-- 
2.34.1