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Message-ID: <20230820102610.755188-6-marcus.folkesson@gmail.com>
Date: Sun, 20 Aug 2023 12:26:09 +0200
From: Marcus Folkesson <marcus.folkesson@...il.com>
To: Marcus Folkesson <marcus.folkesson@...il.com>,
Kent Gustavsson <kent@...oris.se>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Cosmin Tanislav <demonsingur@...il.com>,
Arnd Bergmann <arnd@...db.de>,
ChiYuan Huang <cy_huang@...htek.com>,
Haibo Chen <haibo.chen@....com>,
Ramona Bolboaca <ramona.bolboaca@...log.com>,
Ibrahim Tilki <Ibrahim.Tilki@...log.com>,
ChiaEn Wu <chiaen_wu@...htek.com>,
William Breathitt Gray <william.gray@...aro.org>
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v7 5/6] iio: adc: mcp3911: avoid ambiguity parameters in macros
Name macro parameters after what they represent instead of 'x'
and make sure the evaluation of that will have no side effects.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
---
Notes:
v5:
- New patch in this series
v6:
- change 'ch' to '(ch)'
v7:
- Reword commit message
drivers/iio/adc/mcp3911.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index f9db08813645..281cc1211fd6 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -29,8 +29,8 @@
#define MCP3911_REG_MOD 0x06
#define MCP3911_REG_PHASE 0x07
#define MCP3911_REG_GAIN 0x09
-#define MCP3911_GAIN_MASK(ch) (GENMASK(2, 0) << 3 * ch)
-#define MCP3911_GAIN_VAL(ch, val) ((val << 3 * ch) & MCP3911_GAIN_MASK(ch))
+#define MCP3911_GAIN_MASK(ch) (GENMASK(2, 0) << 3 * (ch))
+#define MCP3911_GAIN_VAL(ch, val) ((val << 3 * (ch)) & MCP3911_GAIN_MASK(ch))
#define MCP3911_REG_STATUSCOM 0x0a
#define MCP3911_STATUSCOM_DRHIZ BIT(12)
@@ -51,8 +51,8 @@
#define MCP3911_REG_GAINCAL_CH1 0x17
#define MCP3911_REG_VREFCAL 0x1a
-#define MCP3911_CHANNEL(x) (MCP3911_REG_CHANNEL0 + x * 3)
-#define MCP3911_OFFCAL(x) (MCP3911_REG_OFFCAL_CH0 + x * 6)
+#define MCP3911_CHANNEL(ch) (MCP3911_REG_CHANNEL0 + (ch) * 3)
+#define MCP3911_OFFCAL(ch) (MCP3911_REG_OFFCAL_CH0 + (ch) * 6)
/* Internal voltage reference in mV */
#define MCP3911_INT_VREF_MV 1200
--
2.41.0
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