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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-03-24 02:05:47 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-24 05:00:33 +0300
commit25cb5b7ac6a7f7943e22a6831b74a6aa964d2a0c (patch)
tree4053d164b28e3260930cf6270e5cd9f02a73978d /include/linux
parentf334f5668bedf7307f6df1d98b14f55902931926 (diff)
downloadlinux-25cb5b7ac6a7f7943e22a6831b74a6aa964d2a0c.tar.xz
bitfield: add explicit inclusions to the example
It's not obvious that bitfield.h doesn't guarantee the bits.h inclusion and the example in the former is confusing. Some developers think that it's okay to just include bitfield.h to get it working. Change example to explicitly include necessary headers in order to avoid confusion. Link: https://lkml.kernel.org/r/20220207123341.47533-1-andriy.shevchenko@linux.intel.com Fixes: 3e9b3112ec74 ("add basic register-field manipulation macros") Depends-on: 8bd9cb51daac ("locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reported-by: Jan Dąbroś <jsd@semihalf.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/bitfield.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/bitfield.h b/include/linux/bitfield.h
index 6093fa6db260..c9be1657f03d 100644
--- a/include/linux/bitfield.h
+++ b/include/linux/bitfield.h
@@ -19,6 +19,9 @@
*
* Example:
*
+ * #include <linux/bitfield.h>
+ * #include <linux/bits.h>
+ *
* #define REG_FIELD_A GENMASK(6, 0)
* #define REG_FIELD_B BIT(7)
* #define REG_FIELD_C GENMASK(15, 8)