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Alok Tiwari 7778c72daf i40e: fix src IP mask checks and memcpy argument names in cloud filter 
[ Upstream commit e809085f49 ]

Fix following issues in the IPv4 and IPv6 cloud filter handling logic in
both the add and delete paths:

- The source-IP mask check incorrectly compares mask.src_ip[0] against
  tcf.dst_ip[0]. Update it to compare against tcf.src_ip[0]. This likely
  goes unnoticed because the check is in an "else if" path that only
  executes when dst_ip is not set, most cloud filter use cases focus on
  destination-IP matching, and the buggy condition can accidentally
  evaluate true in some cases.

- memcpy() for the IPv4 source address incorrectly uses
  ARRAY_SIZE(tcf.dst_ip) instead of ARRAY_SIZE(tcf.src_ip), although
  both arrays are the same size.

- The IPv4 memcpy operations used ARRAY_SIZE(tcf.dst_ip) and ARRAY_SIZE
  (tcf.src_ip), Update these to use sizeof(cfilter->ip.v4.dst_ip) and
  sizeof(cfilter->ip.v4.src_ip) to ensure correct and explicit copy size.

- In the IPv6 delete path, memcmp() uses sizeof(src_ip6) when comparing
  dst_ip6 fields. Replace this with sizeof(dst_ip6) to make the intent
  explicit, even though both fields are struct in6_addr.

Fixes: e284fc2804 ("i40e: Add and delete cloud filter")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-04-18 10:33:12 +02:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

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
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.