1SPDX-Exception-Identifier: Linux-syscall-note 2SPDX-URL: https://spdx.org/licenses/Linux-syscall-note.html 3SPDX-Licenses: GPL-2.0, GPL-2.0+, GPL-1.0+, LGPL-2.0, LGPL-2.0+, LGPL-2.1, LGPL-2.1+ 4Usage-Guide: 5 This exception is used together with one of the above SPDX-Licenses 6 to mark user space API (uapi) header files so they can be included 7 into non GPL compliant user space application code. 8 To use this exception add it with the keyword WITH to one of the 9 identifiers in the SPDX-Licenses tag: 10 SPDX-License-Identifier: <SPDX-License> WITH Linux-syscall-note 11License-Text: 12 13 NOTE! This copyright does *not* cover user programs that use kernel 14 services by normal system calls - this is merely considered normal use 15 of the kernel, and does *not* fall under the heading of "derived work". 16 Also note that the GPL below is copyrighted by the Free Software 17 Foundation, but the instance of code that it refers to (the Linux 18 kernel) is copyrighted by me and others who actually wrote it. 19 20 Also note that the only valid version of the GPL as far as the kernel 21 is concerned is _this_ particular version of the license (ie v2, not 22 v2.2 or v3.x or whatever), unless explicitly otherwise stated. 23 24 Linus Torvalds 25 26