linux-stable.git/include/uapi/linux, branch v5.4.294

types: Complement the aligned types with signed 64-bit one

2025-06-04T12:32:27+00:00

[ Upstream commit e4ca0e59c39442546866f3dd514a3a5956577daf ]

Some user may want to use aligned signed 64-bit type.
Provide it for them.

Signed-off-by: Andy Shevchenko 
Link: https://patch.msgid.link/20240903180218.3640501-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron 
Stable-dep-of: 5097eaae98e5 ("iio: adc: dln2: Use aligned_s64 for timestamp")
Signed-off-by: Sasha Levin

misc: pci_endpoint_test: Use INTX instead of LEGACY

2025-05-02T05:39:25+00:00

[ Upstream commit acd288666979a49538d70e0c0d86e1118b445058 ]

In the root complex pci endpoint test function driver, change macros and
functions names using the term "legacy" to use "intx" instead to
match the term used in the PCI specifications.

Link: https://lore.kernel.org/r/20231122060406.14695-6-dlemoal@kernel.org
Signed-off-by: Damien Le Moal 
Signed-off-by: Lorenzo Pieralisi 
Reviewed-by: Christoph Hellwig 
Stable-dep-of: 919d14603dab ("misc: pci_endpoint_test: Fix displaying 'irq_type' after 'request_irq' error")
Signed-off-by: Sasha Levin

drm/amdkfd: clamp queue size to minimum

2025-05-02T05:39:12+00:00

[ Upstream commit e90711946b53590371ecce32e8fcc381a99d6333 ]

If queue size is less than minimum, clamp it to minimum to prevent
underflow when writing queue mqd.

Signed-off-by: David Yat Sin 
Reviewed-by: Jay Cornwall 
Reviewed-by: Harish Kasiviswanathan 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

netfilter: Replace zero-length array with flexible-array member

2025-01-09T12:23:35+00:00

[ Upstream commit 6daf14140129d30207ed6a0a69851fa6a3636bda ]

The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

Lastly, fix checkpatch.pl warning
WARNING: __aligned(size) is preferred over __attribute__((aligned(size)))
in net/bridge/netfilter/ebtables.c

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva 
Signed-off-by: Pablo Neira Ayuso 
Stable-dep-of: 542ed8145e6f ("netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext")
Signed-off-by: Sasha Levin

tipc: add new AEAD key structure for user API

2024-12-14T18:44:46+00:00

[ Upstream commit 134bdac397661a5841d9f27f508190c68b26232b ]

The new structure 'tipc_aead_key' is added to the 'tipc.h' for user to
be able to transfer a key to TIPC in kernel. Netlink will be used for
this purpose in the later commits.

Acked-by: Ying Xue 
Acked-by: Jon Maloy 
Signed-off-by: Tuong Lien 
Signed-off-by: David S. Miller 
Stable-dep-of: 6a2fa13312e5 ("tipc: Fix use-after-free of kernel socket in cleanup_bearer().")
Signed-off-by: Sasha Levin

media: uapi/linux/cec.h: cec_msg_set_reply_to: zero flags

2024-11-08T15:20:41+00:00

commit 599f6899051cb70c4e0aa9fd591b9ee220cb6f14 upstream.

The cec_msg_set_reply_to() helper function never zeroed the
struct cec_msg flags field, this can cause unexpected behavior
if flags was uninitialized to begin with.

Signed-off-by: Hans Verkuil 
Fixes: 0dbacebede1e ("[media] cec: move the CEC framework out of staging and to media")
Cc: 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

netfilter: uapi: NFTA_FLOWTABLE_HOOK is NLA_NESTED

2024-11-08T15:20:35+00:00

[ Upstream commit 76f1ed087b562a469f2153076f179854b749c09a ]

Fix the comment which incorrectly defines it as NLA_U32.

Fixes: 3b49e2e94e6e ("netfilter: nf_tables: add flow table netlink frontend")
Signed-off-by: Phil Sutter 
Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: Sasha Levin

m68k: amiga: Turn off Warp1260 interrupts during boot

2024-08-19T03:33:36+00:00

commit 1d8491d3e726984343dd8c3cdbe2f2b47cfdd928 upstream.

On an Amiga 1200 equipped with a Warp1260 accelerator, an interrupt
storm coming from the accelerator board causes the machine to crash in
local_irq_enable() or auto_irq_enable().  Disabling interrupts for the
Warp1260 in amiga_parse_bootinfo() fixes the problem.

Link: https://lore.kernel.org/r/ZkjwzVwYeQtyAPrL@amaterasu.local
Cc: stable 
Signed-off-by: Paolo Pisati 
Reviewed-by: Michael Schmitz 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20240601153254.186225-1-p.pisati@gmail.com
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

netfilter: nf_tables: rise cap on SELinux secmark context

2024-08-19T03:33:29+00:00

[ Upstream commit e29630247be24c3987e2b048f8e152771b32d38b ]

secmark context is artificially limited 256 bytes, rise it to 4Kbytes.

Fixes: fb961945457f ("netfilter: nf_tables: add SECMARK support")
Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: Sasha Levin

tcp: add TCP_INFO status for failed client TFO

2024-07-18T09:40:53+00:00

[ Upstream commit 480274787d7e3458bc5a7cfbbbe07033984ad711 ]

The TCPI_OPT_SYN_DATA bit as part of tcpi_options currently reports whether
or not data-in-SYN was ack'd on both the client and server side. We'd like
to gather more information on the client-side in the failure case in order
to indicate the reason for the failure. This can be useful for not only
debugging TFO, but also for creating TFO socket policies. For example, if
a middle box removes the TFO option or drops a data-in-SYN, we can
can detect this case, and turn off TFO for these connections saving the
extra retransmits.

The newly added tcpi_fastopen_client_fail status is 2 bits and has the
following 4 states:

1) TFO_STATUS_UNSPEC

Catch-all state which includes when TFO is disabled via black hole
detection, which is indicated via LINUX_MIB_TCPFASTOPENBLACKHOLE.

2) TFO_COOKIE_UNAVAILABLE

If TFO_CLIENT_NO_COOKIE mode is off, this state indicates that no cookie
is available in the cache.

3) TFO_DATA_NOT_ACKED

Data was sent with SYN, we received a SYN/ACK but it did not cover the data
portion. Cookie is not accepted by server because the cookie may be invalid
or the server may be overloaded.

4) TFO_SYN_RETRANSMITTED

Data was sent with SYN, we received a SYN/ACK which did not cover the data
after at least 1 additional SYN was sent (without data). It may be the case
that a middle-box is dropping data-in-SYN packets. Thus, it would be more
efficient to not use TFO on this connection to avoid extra retransmits
during connection establishment.

These new fields do not cover all the cases where TFO may fail, but other
failures, such as SYN/ACK + data being dropped, will result in the
connection not becoming established. And a connection blackhole after
session establishment shows up as a stalled connection.

Signed-off-by: Jason Baron 
Cc: Eric Dumazet 
Cc: Neal Cardwell 
Cc: Christoph Paasch 
Cc: Yuchung Cheng 
Acked-by: Yuchung Cheng 
Signed-off-by: David S. Miller 
Stable-dep-of: 0ec986ed7bab ("tcp: fix incorrect undo caused by DSACK of TLP retransmit")
Signed-off-by: Sasha Levin