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[RFC,v1,224/256] cl8k: add utils/math.h

Message ID 20210617160223.160998-225-viktor.barna@celeno.com
State New
Headers show
Series wireless: cl8k driver for Celeno IEEE 802.11ax devices | expand

Commit Message

Viktor Barna June 17, 2021, 4:01 p.m. UTC 
From: Viktor Barna <viktor.barna@celeno.com>

(Part of the split. Please, take a look at the cover letter for more
details).

Signed-off-by: Viktor Barna <viktor.barna@celeno.com>
---
 drivers/net/wireless/celeno/cl8k/utils/math.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 drivers/net/wireless/celeno/cl8k/utils/math.h

--
2.30.0
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Patch

diff --git a/drivers/net/wireless/celeno/cl8k/utils/math.h b/drivers/net/wireless/celeno/cl8k/utils/math.h
new file mode 100644
index 000000000000..f03bef46f3eb
--- /dev/null
+++ b/drivers/net/wireless/celeno/cl8k/utils/math.h
@@ -0,0 +1,18 @@ 
+/* SPDX-License-Identifier: MIT */
+/* Copyright(c) 2019-2021, Celeno Communications Ltd. */
+
+#ifndef CL_MATH_H
+#define CL_MATH_H
+
+#include <linux/types.h>
+#include <linux/math64.h>
+
+static inline void cl_div64_decimal(u64 dividend, u64 divisor, u32 *a, u32 *b)
+{
+       u64 remainder = 0;
+
+       *a = (u32)div64_u64_rem(dividend, divisor, &remainder);
+       *b = (u32)div64_u64(100 * remainder, divisor);
+}
+
+#endif /* CL_MATH_H */