diff options
-rw-r--r-- | include/linux/compiler.h | 5 | ||||
-rw-r--r-- | lib/Kconfig.debug | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 9b4f11094937..060b96112ec6 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h | |||
@@ -99,6 +99,11 @@ extern void __chk_io_ptr(void __iomem *); | |||
99 | #define __must_check | 99 | #define __must_check |
100 | #endif | 100 | #endif |
101 | 101 | ||
102 | #ifndef CONFIG_ENABLE_MUST_CHECK | ||
103 | #undef __must_check | ||
104 | #define __must_check | ||
105 | #endif | ||
106 | |||
102 | /* | 107 | /* |
103 | * Allow us to avoid 'defined but not used' warnings on functions and data, | 108 | * Allow us to avoid 'defined but not used' warnings on functions and data, |
104 | * as well as force them to be emitted to the assembly file. | 109 | * as well as force them to be emitted to the assembly file. |
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 554ee688a9f8..5c114c3f03c5 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug | |||
@@ -8,6 +8,13 @@ config PRINTK_TIME | |||
8 | operations. This is useful for identifying long delays | 8 | operations. This is useful for identifying long delays |
9 | in kernel startup. | 9 | in kernel startup. |
10 | 10 | ||
11 | config ENABLE_MUST_CHECK | ||
12 | bool "Enable __must_check logic" | ||
13 | default y | ||
14 | help | ||
15 | Enable the __must_check logic in the kernel build. Disable this to | ||
16 | suppress the "warning: ignoring return value of 'foo', declared with | ||
17 | attribute warn_unused_result" messages. | ||
11 | 18 | ||
12 | config MAGIC_SYSRQ | 19 | config MAGIC_SYSRQ |
13 | bool "Magic SysRq key" | 20 | bool "Magic SysRq key" |