kernel: define BIT() when undefined

The user-space may not have a definition for `BIT()`, so when an application includes this header it will get error about missing `BIT` definition. This is a fix for this possible of issue. Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

kernel: define BIT() when undefined
The user-space may not have a definition for `BIT()`, so when an application includes this header it will get error about missing `BIT` definition. This is a fix for this possible of issue. Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
9120d5e7 · Federico Vaga · ee3125b9 · 9120d5e7
Commit 9120d5e7 authored Feb 07, 2018 by Federico Vaga
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fmc-adc-100m14b4cha.h kernel/fmc-adc-100m14b4cha.h +4 -0

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--- a/kernel/fmc-adc-100m14b4cha.h
+++ b/kernel/fmc-adc-100m14b4cha.h
@@ -8,6 +8,10 @@
 #ifndef FMC_ADC_100M14B4C_H_
 #define FMC_ADC_100M14B4C_H_

+#ifndef BIT
+#define BIT(nr) (1UL << (nr))
+#endif
+
 /*
 * Trigger Extended Attribute Enumeration
 */