ALSA: Remove some left-over license text in include/uapi/sound/

There is already a SPDX-License-Identifier tag, so the corresponding
license text can be removed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/203c1db92c470925f31e361f6e7d180812501f2e.1664112023.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>

ALSA: uapi: Add linux/types.h include back (but carefully)

A few uapi/sound/*.h headers have been corrected for recovering from
the compile errors with the existing user-space code (alsa-lib) by the
recent commits. OTOH, these introduced another regression, as now
linux/types.h inclusion became mandatory for the uapi header checks.

As a compromise, this patch re-adds linux/types.h inclusions again,
but conditionally not to break other non-standard user-space stuff
again.

Fixes: 2e4688676392 ("ALSA: emu10k1: Make uapi/emu10k1.h compilable again")
Fixes: d63e63d42107 ("ALSA: hdsp: Make uapi/hdsp.h compilable again")
Fixes: 4fa406caf950 ("ALSA: hdspm: Drop linux/types.h inclusion in uapi header")
Reported-by: kbuild test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20191230212742.28925-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

ALSA: uapi: Drop unneeded typedefs

We kept some typedefs in uapi/sound/*.h so that the programs in
alsa-tools can be built. Now that alsa-lib takes these and applies
the workarounds in its own, we don't need these typedefs any longer in
the kernel uapi side. Let's drop them.

Link: https://lore.kernel.org/r/20191220161555.20232-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

ALSA: hdspm: Drop linux/types.h inclusion in uapi header

The hdspm.h uapi header has been used also from non-Linux or platforms
that don't have linux/*.h. It was OK in the past because alsa-lib
contained the modified version of this header file, but now it tries
to the verbatim copy, so it broke the build. This fixes it again.

Link: https://lore.kernel.org/r/20191220153415.2740-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

License cleanup: add SPDX license identifier to uapi header files with a license

Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.

Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.

GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:

NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".

This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.

Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)

SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

ALSA: hdspm: use __u8, __u32 and __u64 from linux/types.h instead of stdint.h

Kernel headers should use linux/types.h based definitions.

Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

hdspm.h: include stdint.h in userspace

Fixes compilation error:

sound/hdspm.h:43:2: error: unknown type name ‘uint32_t’

Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

ALSA: Fix invalid kerneldoc markers

They are no real kerneldoc comments, so drop such markers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

ALSA: hdspm - Fix SNDRV_HDSPM_IOCTL_GET_LTC

Use struct hdspm_ltc to query the LTC, using a mixer struct is just
plain wrong.

Due to the wrong struct, this ioctl was never working, so we're free to
fix it without breaking userspace compatibility.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

UAPI: (Scripted) Disintegrate include/sound

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>