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Ben Dooks 96a233e600 bpf: Add endian modifiers to fix endian warnings
A couple of the syscalls which load values (bpf_skb_load_helper_16() and
bpf_skb_load_helper_32()) are using u16/u32 types which are triggering
warnings as they are then converted from big-endian to CPU-endian. Fix
these by making the types __be instead.

Fixes the following sparse warnings:

  net/core/filter.c:246:32: warning: cast to restricted __be16
  net/core/filter.c:246:32: warning: cast to restricted __be16
  net/core/filter.c:246:32: warning: cast to restricted __be16
  net/core/filter.c:246:32: warning: cast to restricted __be16
  net/core/filter.c:273:32: warning: cast to restricted __be32
  net/core/filter.c:273:32: warning: cast to restricted __be32
  net/core/filter.c:273:32: warning: cast to restricted __be32
  net/core/filter.c:273:32: warning: cast to restricted __be32
  net/core/filter.c:273:32: warning: cast to restricted __be32
  net/core/filter.c:273:32: warning: cast to restricted __be32

Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220714105101.297304-1-ben.dooks@sifive.com
History 2022-07-14 23:00:48 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

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There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
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the problems which may result by upgrading your kernel.