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Jason Xing says: ==================== introduce drop reasons for tcp receive path When I was debugging the reason about why the skb should be dropped in syn cookie mode, I found out that this NOT_SPECIFIED reason is too general. Thus I decided to refine it. v10 Link: https://lore.kernel.org/netdev/20240223193321.6549-1-kuniyu@amazon.com/ 1. fix three nit problems (Kuniyuki) 2. add reviewed-by tag (Kuniyuki) v9 Link: https://lore.kernel.org/netdev/20240222113003.67558-1-kerneljasonxing@gmail.com/ 1. nit: remove one unneeded 'else' (David) 2. add reviewed-by tags (Eric, David) v8 Link: https://lore.kernel.org/netdev/20240221025732.68157-1-kerneljasonxing@gmail.com/ 1. refine part of codes in patch [03/10] and patch [10/10] (Eric) 2. squash patch [11/11] in the last version into patch [10/11] (Eric) 3. add reviewed-by tags (Eric) v7 Link: https://lore.kernel.org/all/20240219032838.91723-1-kerneljasonxing@gmail.com/ 1. fix some misspelled problem (Kuniyuki) 2. remove redundant codes in tcp_v6_do_rcv() (Kuniyuki) 3. add reviewed-by tag in patch [02/11] (Kuniyuki) v6 Link: https://lore.kernel.org/all/c987d2c79e4a4655166eb8eafef473384edb37fb.camel@redhat.com/ Link: https://lore.kernel.org/all/CAL+tcoAgSjwsmFnDh_Gs9ZgMi-y5awtVx+4VhJPNRADjo7LLSA@mail.gmail.com/ 1. Take one case into consideration in tcp_v6_do_rcv(), behave like old days, or else it will trigger errors (Paolo). 2. Extend NO_SOCKET reason to consider two more reasons for request socket and child socket. v5: Link: https://lore.kernel.org/netdev/20240213134205.8705-1-kerneljasonxing@gmail.com/ Link: https://lore.kernel.org/netdev/20240213140508.10878-1-kerneljasonxing@gmail.com/ 1. Use SKB_DROP_REASON_IP_OUTNOROUTES instead of introducing a new one (Eric, David) 2. Reuse SKB_DROP_REASON_NOMEM to handle failure of request socket allocation (Eric) 3. Reuse NO_SOCKET instead of introducing COOKIE_NOCHILD 4. avoid duplication of these opt_skb tests/actions (Eric) 5. Use new name (TCP_ABORT_ON_DATA) for readability (David) 6. Reuse IP_OUTNOROUTES instead of INVALID_DST (Eric) --- HISTORY This series is combined with 2 series sent before suggested by Jakub. So I'm going to separately write changelogs for each of them. PATCH 1/11 - 5/11 preivious Link: https://lore.kernel.org/netdev/20240213134205.8705-1-kerneljasonxing@gmail.com/ Summary 1. introduce all the dropreasons we need, [1/11] patch. 2. use new dropreasons in ipv4 cookie check, [2/11],[3/11] patch. 3. use new dropreasons ipv6 cookie check, [4/11],[5/11] patch. v4: Link: https://lore.kernel.org/netdev/20240212172302.3f95e454@kernel.org/ 1. Fix misspelled name in Kdoc as suggested by Jakub. v3: Link: https://lore.kernel.org/all/CANn89iK40SoyJ8fS2U5kp3pDruo=zfQNPL-ppOF+LYaS9z-MVA@mail.gmail.com/ 1. Split that patch into some smaller ones as suggested by Eric. v2: Link: https://lore.kernel.org/all/20240204104601.55760-1-kerneljasonxing@gmail.com/ 1. change the title of 2/2 patch. 2. fix some warnings checkpatch tool showed before. 3. use return value instead of adding more parameters suggested by Eric. PATCH 6/11 - 11/11 previous Link: https://lore.kernel.org/netdev/20240213140508.10878-1-kerneljasonxing@gmail.com/ v4: Link: https://lore.kernel.org/netdev/CANn89iJar+H3XkQ8HpsirH7b-_sbFe9NBUdAAO3pNJK3CKr_bg@mail.gmail.com/ Link: https://lore.kernel.org/netdev/20240213131205.4309-1-kerneljasonxing@gmail.com/ Already got rid of @acceptable in tcp_rcv_state_process(), so I need to remove *TCP_CONNREQNOTACCEPTABLE related codes which I wrote in the v3 series. v3: Link: https://lore.kernel.org/all/CANn89iK40SoyJ8fS2U5kp3pDruo=zfQNPL-ppOF+LYaS9z-MVA@mail.gmail.com/ 1. Split that patch into some smaller ones as suggested by Eric. v2: Link: https://lore.kernel.org/all/20240204104601.55760-1-kerneljasonxing@gmail.com/ 1. change the title of 2/2 patch. 2. fix some warnings checkpatch tool showed before. 3. use return value instead of adding more parameters suggested by Eric. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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
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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.