#ifndef _ASM_GENERIC_BITOPS_FLS_H_ #define _ASM_GENERIC_BITOPS_FLS_H_ /** * fls - find last (most-significant) bit set * @x: the word to search * * This is defined the same way as ffs. * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32. */ static __always_inline int fls(int x) { int r = 32; if (!x) return 0; if (!(x & 0xffff0000u)) { x <<= 16; r -= 16; } if (!(x & 0xff000000u)) { x <<= 8; r -= 8; } if (!(x & 0xf0000000u)) { x <<= 4; r -= 4; } if (!(x & 0xc0000000u)) { x <<= 2; r -= 2; } if (!(x & 0x80000000u)) { x <<= 1; r -= 1; } return r; } #endif /* _ASM_GENERIC_BITOPS_FLS_H_ */ ble id='header'> cgit logo index : net-next.git
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authorSainath Grandhi <sainath.grandhi@intel.com>2017-02-10 16:03:50 -0800
committerDavid S. Miller <davem@davemloft.net>2017-02-11 20:59:41 -0500
commitd9f1f61c0801a73ff36d416a7ede54229b231e1d (patch)
tree2f9970b37ac99da534f7ca58b6b67ee880ead3cd /drivers/usb/gadget/udc
parent6fe3faf86757eb7f078ff06b23b206f17dc4fb36 (diff)
tap: Extending tap device create/destroy APIs
Extending tap APIs get/free_minor and create/destroy_cdev to handle more than one type of virtual interface. Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/gadget/udc')