/* * Copyright (C) 2013 Davidlohr Bueso * * Based on the shift-and-subtract algorithm for computing integer * square root from Guy L. Steele. */ #include #include /** * int_sqrt - rough approximation to sqrt * @x: integer of which to calculate the sqrt * * A very rough approximation to the sqrt() function. */ unsigned long int_sqrt(unsigned long x) { unsigned long b, m, y = 0; if (x <= 1) return x; m = 1UL << (BITS_PER_LONG - 2); while (m != 0) { b = y + m; y >>= 1; if (x >= b) { x -= b; y += m; } m >>= 2; } return y; } EXPORT_SYMBOL(int_sqrt); />
summaryrefslogtreecommitdiff
path: root/include/net/ipcomp.h
diff options
context:
space:
mode:
authorOlof Johansson <olof@lixom.net>2017-01-29 21:00:48 -0800
committerOlof Johansson <olof@lixom.net>2017-01-29 21:00:48 -0800
commit0a019a28e0ca0af7dc2691d1a9527960b07ad2bb (patch)
tree5ee1db9aacacd6af6701fb290e8a294ef3cc2bf2 /include/net/ipcomp.h
parentec026b5020688a8bde5fae9a69ae3c59b66ba3ae (diff)
parent8413299cb3933dade6186bbee8363f190032107e (diff)
Merge tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti into fixes
STi DT fix: Since v4.10-rc1, xhci is complaining in loop with : [ 801.953836] usb usb6-port1: Cannot enable. Maybe the USB cable is bad? [ 801.960455] xhci-hcd xhci-hcd.0.auto: Cannot set link state. [ 801.966611] usb usb6-port1: cannot disable (err = -32) set property "snps,dis_u3_susphy_quirk" in DT fix it. * tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti: ARM: dts: STiH407-family: set snps,dis_u3_susphy_quirk Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include/net/ipcomp.h')