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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2016-03-04 11:52:16 +0100
committerDavid S. Miller <davem@davemloft.net>2016-03-04 16:10:36 -0500
commitb5d3755a22e0cc4c369c0985aef0c52c2477c1e7 (patch)
tree2fef71a2d85dde83950727068fd890a4f10c8be6 /include/uapi/linux/kernel.h
parent9b2f8f616a8d992243be31ff47d3f64031bf168a (diff)
downloadlinux-b5d3755a22e0cc4c369c0985aef0c52c2477c1e7.tar.gz
uapi: define DIV_ROUND_UP for userland
DIV_ROUND_UP is defined in linux/kernel.h only for the kernel. When ethtool.h is included by a userland app, we got the following error: include/linux/ethtool.h:1218:8: error: variably modified 'queue_mask' at file scope __u32 queue_mask[DIV_ROUND_UP(MAX_NUM_QUEUE, 32)]; ^ Let's add a common definition in uapi and use it everywhere. Fixes: ac2c7ad0e5d6 ("net/ethtool: introduce a new ioctl for per queue setting") CC: Kan Liang <kan.liang@intel.com> Suggested-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/kernel.h')
-rw-r--r--include/uapi/linux/kernel.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/kernel.h b/include/uapi/linux/kernel.h
index 321e399457f5..466073f0ce46 100644
--- a/include/uapi/linux/kernel.h
+++ b/include/uapi/linux/kernel.h
@@ -9,5 +9,6 @@
#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask))
+#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
#endif /* _UAPI_LINUX_KERNEL_H */