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ring_buffer: Link buffer data to the .noinit section

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The ring buffer's static declarations now declare the
ring buffer's data as __noinit, to avoid unnecessary
initialization of the buffer.

Signed-off-by: Yonatan Schachter <yonatan.schachter@gmail.com>
This commit is contained in:
Yonatan Schachter 2021-08-20 18:03:02 +03:00 • committed by Christopher Friedt
commit f5b90e7b1f
1 changed files with 3 additions and 3 deletions
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6
include/sys/ring_buffer.h
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@ -82,7 +82,7 @@ struct ring_buf {
#define RING_BUF_ITEM_DECLARE_POW2(name, pow) \
BUILD_ASSERT((1 << pow) < RING_BUFFER_MAX_SIZE,\
RING_BUFFER_SIZE_ASSERT_MSG); \
static uint32_t _ring_buffer_data_##name[BIT(pow)]; \
static uint32_t __noinit _ring_buffer_data_##name[BIT(pow)]; \
struct ring_buf name = { \
.size = (BIT(pow)), \
.mask = (BIT(pow)) - 1, \
@ -106,7 +106,7 @@ struct ring_buf {
#define RING_BUF_ITEM_DECLARE_SIZE(name, size32) \
BUILD_ASSERT(size32 < RING_BUFFER_MAX_SIZE,\
RING_BUFFER_SIZE_ASSERT_MSG); \
static uint32_t _ring_buffer_data_##name[size32]; \
static uint32_t __noinit _ring_buffer_data_##name[size32]; \
struct ring_buf name = { \
.size = size32, \
.buf = { .buf32 = _ring_buffer_data_##name} \
@ -128,7 +128,7 @@ struct ring_buf {
#define RING_BUF_DECLARE(name, size8) \
BUILD_ASSERT(size8 < RING_BUFFER_MAX_SIZE,\
RING_BUFFER_SIZE_ASSERT_MSG); \
static uint8_t _ring_buffer_data_##name[size8]; \
static uint8_t __noinit _ring_buffer_data_##name[size8]; \
struct ring_buf name = { \
.size = size8, \
.buf = { .buf8 = _ring_buffer_data_##name} \