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The new auditing standard for the subsystem will be to only use
__aligned_64 in uapi headers to try and prevent 32/64 compat bugs
from existing in the future.
Changing all existing usage will help ensure new developers copy the
right idea.
The before/after of this patch was tested using pahole on 32 and 64
bit compiles to confirm it has no change in the structure layout, so
this patch is a NOP.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The udata's for alloc_pd cannot contain u64s due to alignment
constraints. Switch the two never-used u64's to arrays of u32 to reduce
the required struct alignment to 4 bytes.
These reserved fields are totally unnecessary, never written and never
read.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
__packed is not available in linux/types.h, so we cannot use it in
the uapi headers.
The construction struct ABC {} __packed; may still compile even if
__packed is not defined, however it simply creates a variable called
__packed, and doesn't set the alignment.
All these uses of packed are on structs that already have aligned
members.
While use in hfi may indicate the struct itself is unaligned,
the use in ocrdma is on a UHW struct which should never be unaligned,
so just delete it there.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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>
This patch moves ocrdma vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libmlx4) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
In addition, it changes types to be __uXX instead of uXX.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-By: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
