svn commit: r347626 - head/sys/compat/linuxkpi/common/include/linux
Johannes Lundberg
johalun at FreeBSD.org
Wed May 15 17:57:07 UTC 2019
Author: johalun
Date: Wed May 15 17:57:06 2019
New Revision: 347626
URL: https://svnweb.freebsd.org/changeset/base/347626
Log:
LinuxKPI: Add helper macros IS_ALIGNED and DIV_ROUND_DOWN_ULL.
This patch is part of D19565
Reviewed by: hps
Approved by: imp (mentor), hps
MFC after: 1 week
Modified:
head/sys/compat/linuxkpi/common/include/linux/kernel.h
Modified: head/sys/compat/linuxkpi/common/include/linux/kernel.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/kernel.h Wed May 15 17:55:41 2019 (r347625)
+++ head/sys/compat/linuxkpi/common/include/linux/kernel.h Wed May 15 17:57:06 2019 (r347626)
@@ -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__)
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