src-test2/sys/dev/scd, branch release/11.3.0

Fix privilege escalation in cd(4) driver.

2019-07-03T00:03:55Z

Approved by: so Approved by: re (implicit) Security: FreeBSD-SA-19:11.cd_ioctl Security: CVE-2019-5602

Add deprecation notices for various device drivers removed in 12.0.

2017-07-12T20:10:53Z

This is a direct commit to stable/11 since these files have already been removed in head. Reviewed by: sbruno, gjb Differential Revision: https://reviews.freebsd.org/D11542

sys/dev: extend use of the howmany() macro when available.

2016-04-26T15:03:15Z

We have a howmany() macro in the header that is convenient to re-use as it makes things easier to read.

Add locking to scd(4) and mark MPSAFE.

2014-11-18T22:02:37Z

- Actually use existing per-softc mutex. - Use mutex in cdev routines and remove D_NEEDGIANT. - Use callout(9) instead of timeout(9). - Don't check for impossible conditions (e.g. SCDINIT being clear). - Use bus_*() instead of bus_space_*(). Tested by: no one

Use pause() rather than tsleep() on stack variables and function pointers.

2007-02-27T17:23:29Z

Remove bus_{mem,p}io.h and related code for a micro-optimization on i386

2005-05-29T04:42:30Z

and amd64. The optimization is a trivial on recent machines. Reviewed by: -arch (imp, marcel, dfr)

netchild's mega-patch to isolate compiler dependencies into a central

2005-03-02T21:33:29Z

place. This moves the dependency on GCC's and other compiler's features into the central sys/cdefs.h file, while the individual source files can then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42. By now, GCC and ICC (the Intel compiler) have been actively tested on IA32 platforms by netchild. Extension to other compilers is supposed to be possible, of course. Submitted by: netchild Reviewed by: various developers on arch@, some time ago

Boot away another stackgap (one of the lest ones in linuxlator/i386) by

2005-01-30T08:12:37Z

providing special version of CDIOCREADSUBCHANNEL ioctl(), which assumes that result has to be placed into kernel space not user space. In the long run more generic solution has to be designed WRT emulating various ioctl()s that operate on userspace buffers, but right now there is only one such ioctl() is emulated, so that it makes little sense. MFC after: 2 weeks

Don't set si_bszize_phys, nobody cares.

2004-10-29T11:09:50Z

Use bioq_takefirst()

Avoid casts as lvalues.

2004-07-28T06:21:53Z