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LinuxKPI: Add helper macros IS_ALIGNED and DIV_ROUND_DOWN_ULL.

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This patch is part of D19565

Reviewed by:	hps
Approved by:	imp (mentor), hps
MFC after:	1 week
This commit is contained in:
Johannes Lundberg 2019-05-15 17:57:06 +00:00
parent b55d4ebe5f
commit c4e0746e7d
1 changed files with 5 additions and 0 deletions
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5
sys/compat/linuxkpi/common/include/linux/kernel.h
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@ -130,9 +130,14 @@
#define ALIGN(x, y) roundup2((x), (y))
#undef PTR_ALIGN
#define PTR_ALIGN(p, a) ((__typeof(p))ALIGN((uintptr_t)(p), (a)))
#if defined(LINUXKPI_VERSION) && LINUXKPI_VERSION >= 50000
/* Moved from linuxkpi_gplv2 */
#define IS_ALIGNED(x, a) (((x) & ((__typeof(x))(a) - 1)) == 0)
#endif
#define DIV_ROUND_UP(x, n) howmany(x, n)
#define __KERNEL_DIV_ROUND_UP(x, n) howmany(x, n)
#define DIV_ROUND_UP_ULL(x, n) DIV_ROUND_UP((unsigned long long)(x), (n))
#define DIV_ROUND_DOWN_ULL(x, n) (((unsigned long long)(x) / (n)) * (n))
#define FIELD_SIZEOF(t, f) sizeof(((t *)0)->f)
#define printk(...) printf(__VA_ARGS__)