linux-toradex.git/arch/s390/include/uapi/asm/Kbuild, branch master

kbuild: force all architectures except um to include mandatory-y

2019-03-17T03:56:32+00:00

Currently, every arch/*/include/uapi/asm/Kbuild explicitly includes
the common Kbuild.asm file. Factor out the duplicated include directives
to scripts/Makefile.asm-generic so that no architecture would opt out
of the mandatory-y mechanism.

um is not forced to include mandatory-y since it is a very exceptional
case which does not support UAPI.

Signed-off-by: Masahiro Yamada

kbuild: warn redundant generic-y

2019-03-17T03:56:31+00:00

The generic-y is redundant under the following condition:

 - arch has its own implementation

 - the same header is added to generated-y

 - the same header is added to mandatory-y

If a redundant generic-y is found, the warning like follows is displayed:

  scripts/Makefile.asm-generic:20: redundant generic-y found in arch/arm/include/asm/Kbuild: timex.h

I fixed up arch Kbuild files found by this.

Suggested-by: Sam Ravnborg 
Signed-off-by: Masahiro Yamada

arch: Use asm-generic/socket.h when possible

2019-02-03T19:17:30+00:00

Many architectures maintain an arch specific copy of the
file even though there are no differences with the asm-generic
one. Allow these architectures to use the generic one instead.

Signed-off-by: Deepa Dinamani 
Acked-by: Max Filippov 
Acked-by: Heiko Carstens 
Acked-by: Willem de Bruijn 
Cc: chris@zankel.net
Cc: fenghua.yu@intel.com
Cc: tglx@linutronix.de
Cc: schwidefsky@de.ibm.com
Cc: linux-ia64@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-s390@vger.kernel.org
Signed-off-by: David S. Miller

arch: remove redundant UAPI generic-y defines

2019-01-06T01:22:15+00:00

Now that Kbuild automatically creates asm-generic wrappers for missing
mandatory headers, it is redundant to list the same headers in
generic-y and mandatory-y.

Suggested-by: Sam Ravnborg 
Signed-off-by: Masahiro Yamada 
Acked-by: Sam Ravnborg

arch: remove stale comments "UAPI Header export list"

2019-01-06T00:46:51+00:00

These comments are leftovers of commit fcc8487d477a ("uapi: export all
headers under uapi directories").

Prior to that commit, exported headers must be explicitly added to
header-y. Now, all headers under the uapi/ directories are exported.

Signed-off-by: Masahiro Yamada

signal: Remove the need for __ARCH_SI_PREABLE_SIZE and SI_PAD_SIZE

2018-10-03T14:46:43+00:00

Rework the defintion of struct siginfo so that the array padding
struct siginfo to SI_MAX_SIZE can be placed in a union along side of
the rest of the struct siginfo members.  The result is that we no
longer need the __ARCH_SI_PREAMBLE_SIZE or SI_PAD_SIZE definitions.

Signed-off-by: "Eric W. Biederman"

y2038: s390: Remove unneeded ipc uapi header files

2018-04-20T14:19:58+00:00

The s390 msgbuf/sembuf/shmbuf header files are all identical to the
version from asm-generic.

This patch removes the files and replaces them with 'generic-y'
statements, to avoid having to modify each copy when we extend sysvipc
to deal with 64-bit time_t in 32-bit user space.

Note that unlike alpha and ia64, the ipcbuf.h header file is slightly
different here, so I'm leaving the private copy.

To deal with 32-bit compat tasks, we also have to adapt the definitions
of compat_{shm,sem,msg}id_ds to match the changes to the respective
asm-generic files.

Acked-by: Heiko Carstens 
Signed-off-by: Arnd Bergmann

s390/syscalls: use generated syscall_table.h and unistd.h header files

2018-01-23T06:36:52+00:00

Update the uapi/asm/unistd.h to include the generated compat and
64-bit version of the unistd.h and, as well as, the unistd_nr.h
header file.  Also remove the arch/s390/kernel/syscalls.S file
and use the generated system call table, syscall_table.h, instead.

Signed-off-by: Hendrik Brueckner 
Acked-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390: add a few more SPDX identifiers

2017-12-05T06:51:09+00:00

Add the correct SPDX license to a few more files under arch/s390 and
drivers/s390 which have been missed to far.
The SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.

Signed-off-by: Martin Schwidefsky

s390: use generic uapi/asm/swab.h

2017-08-03T11:16:27+00:00

clang doesn't like s390 specific inline assembler constraints. These
are present in our arch specific uapi/asm/swab.h which again is
required by some ebpf test cases.

For current compiler versions the generic swab.h already makes use of
gcc's builtin functions. Therefore we can simply remove our own header
file and use the generic one.

This will generate worse code if used with compilers before gcc 4.8,
which has no __builtin_bswap16(); or before gcc v4.4, which has no
__builtin_bswap[32|64](). For these cases a C implementation fallback
would be used which generates more code, but is still correct (170KB
extra code for gcc 4.3 with performance_defconfig).

However given that we need (and want) to get rid of the inline
assemblies anyway in order to be able to use clang, the above is just
a minor drawback if old gcc compilers are used.

With current compilers there is close to zero difference, except for
three btrfs bit functions which generate more out-of-line code. The
generated code looks still correct and also uses the s390 specific
byteswap instructions.

Reported-and-tested-by: Thomas Richter 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky