evbarm/OPENBLOCKS_A6: Add A7 support to comment, NFC

branches: 1.46.2;
PR/57889: Ricardo Branco: ext2fs does not have user immutable and append
file flags, only system ones. Restrict those to the superuser. Before
the behavior was controlled by EXT2FS_SYSTEM_FLAGS. Make that behavior the
default.

branches: 1.45.4;
UFS/LFS dirhash:
- Enable UFS_DIRHASH if the architecture or kernel model specific config
file can use 128MB of RAM or more.
- Remove experimental tag from UFS_DIRHASH; it's been with RUMP kernel
and by a number of NetBSD developers for years.
- Add LFS_DIRHASH if LFS was enabled.
- Be somewhat consistent with FS options order.

Comment out most of USB devices. Fix boot failure since netbsd-8.

There is an upper limit of kernel size for u-boot, somewhere at ~6MB.
If kernel exceeds this limit, work area of u-boot gets broken.

do not enable kernel OSS compat in configs without compat_linux

perhaps kernel OSS compat can be merged into compat_linux to avoid
further confusion

branches: 1.42.2;
vether: Add to kernel configurations

It's only enabled if the kernel enabled bridge AND tap.
Otherwise it's commented out.

make COMPAT_LINUX option disabled by default

leave the option enabled only in amd64/i386 ALL kernels to make
sure it continues to be compilable also when included in kernel

Remove references to BRIDGE_IPF, it is now compiled in by default.

PMAP_DEBUG has been deleted on arm

branches: 1.38.2;
remove 'file-system SMBFS' and 'pseudo-device nsmb' from all kernel configs
to prepare for their eventual removal

Remove the strip(4) - Starmode Radio IP - pseudo-device driver. It is
long since obsolete.

branches: 1.36.4;
Use veriexec.config to reduce duplication

Add ure(4) to kernel config files. Also add PHY drivers where necessary.

remove the 'wd* at umass?' for the non-standardized and rare (extinct?)
In-System Design ATA protocol over Bulk-Only devices from most kernels,
leave only in i386/amd64 ALL; it's unmaintained and likely currently broken,
lack of test hardware makes it impossible to support

Add (commented out) mue(4) to where appropriate.
Also add MII/PHY drivers for USB NICs if missing.

Unreference IPF/PF from all the config files, and enable NPF instead when
wanted. This also fixes some inconsistencies I saw in several files (eg
IPF options while IPF was not compiled, IPF+PF enabled by default, etc).

Remove the kernel PMC code. Sent yesterday on tech-kern@.

This change:

* Removes "options PERFCTRS", the associated includes, and the associated
ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is
good.

* Removes the PMC code of ARM XSCALE.

* Removes all the pmc.h files. They were all empty, except for ARM XSCALE.

* Reorders the x86 PMC code not to rely on the legacy pmc.h file. The
definitions are put in sysarch.h.

* Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control
and sys_pmc_get_info syscalls. They are marked as OBSOL in kern,
netbsd32 and rump.

* Removes the pmc_evid_t and pmc_ctr_t types.

* Removes all the associated man pages. The sets are marked as obsolete.

branches: 1.30.2; 1.30.4;
clean up COMPAT_* options for native netbsd code:
- new series of files that are useful for saying "i want everything
since netbsd 1.4", etc.
- use the fact COMPAT_* options have future dependancies to remove
many redundant options.

removes about 3000 lines total across kernel configuration files.
tested about 30 random kernels in the changed list.

Remove support for VERIFIED_EXEC_FP_RMD160, VERIFIED_EXEC_FP_SHA1, and VERIFIED_EXEC_FP_MD5 options.
These algorithms are either broken or on their way to being broken.

Discussed on tech-security
http://mail-index.netbsd.org/tech-security/2017/08/21/msg000936.html

ok riastradh

Remove TCP_COMPAT_42 from the config files. Pass 3.

PR kern/51208
Add DISKLABEL_EI option (and also FFS_EI if missing), commented out except for
ALL on amd64 and i386.

branches: 1.26.2;
mention PAX_SEGVGUARD dependency on FILEASSOC

branches: 1.25.2;
Remove KMEMSTATS.

branches: 1.24.2;
Fix the names of the (commented out) Kirwood L2 cache options.

Systematize (and in many cases, fix) the comments on options COMPAT_NN.

There are quite a few configs that are missing some COMPAT_NN options
in ways that don't make sense; this should probably get cleaned up
too, but for the time being I've not added or removed anything.

Reorganize symbol table embedding. The existing option SYMTAB_SPACE is
replaced by the make option COPY_SYMTAB set to any value. The copy of
the symbol table is no longer put into a buffer in kern_ksyms.o, but a
small helper object. This object is build first with a dummy size, then
the kernel is linked to compute the real dimension of the symbol table
buffer. After that, the helper object is rebuild and the kernel linked
again.

Add "options COMPAT_70" to all kernel configuration files that
already had "options COMPAT_60".

Add COMPAT_NETBSD32 to more kernels (we have too many)

"internally consistency checks" -> "internal consistency checks"

branches: 1.18.2;
Change wildcard for mvgbe configuration. Don't attach, if clock was disabled.

Add comment-outed mvgbec1 and mvgbe for A7.

Cleanup.

G/C PFIL_HOOKS from the kernel configs.

branches: 1.14.2;
catch the escapees of the IPSEC_NAT_T purge.

more bogus number removal

the bogus number police

remove confusing numeric locators where they are unused.

Under FAST_IPSEC, IPSEC_ESP is mandatory; GC it.

Retire OSI network stack. OK core@

branches: 1.8.2;
Add "options COMPAT_60" to all kernel configuration files
that already had "options COMPAT_50".

branches: 1.7.2;
Add PUFFS, putter and fss.

Split DEBUG="-g -Ox" into DEBUG="-g" and COPTS="-Ox".

Rename RT2500USB driver to ural(4) as it was originally in OpenBSD,
as ural(4) and ral(4) do not actually share any code.

Enable ural(4) in hpcarm WZERO3 kernel too, as it will now build.

Fixes PR#43520.

Typo in comment

Comment-out md.

Remove obsolated file-system PORTAL.

Add OPENBLOCKS_A6 (Plat'Home OpenBlockS A6).