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Horatiu Vultur 3a4eeea79a phy: mscc: Fix timestamping for vsc8584 
[ Upstream commit bc1a59cff9 ]

There was a problem when we received frames and the frames were
timestamped. The driver is configured to store the nanosecond part of
the timestmap in the ptp reserved bits and it would take the second part
by reading the LTC. The problem is that when reading the LTC we are in
atomic context and to read the second part will go over mdio bus which
might sleep, so we get an error.
The fix consists in actually put all the frames in a queue and start the
aux work and in that work to read the LTC and then calculate the full
received time.

Fixes: 7d272e63e0 ("net: phy: mscc: timestamping and PHC support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250818081029.1300780-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28 16:28:49 +02:00
arch x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper 2025-08-28 16:28:47 +02:00
block block: reject invalid operation in submit_bio_noacct 2025-08-28 16:28:40 +02:00
certs
crypto
Documentation mptcp: disable add_addr retransmission when timeout is 0 2025-08-28 16:28:44 +02:00
drivers phy: mscc: Fix timestamping for vsc8584 2025-08-28 16:28:49 +02:00
fs use uniform permission checks for all mount propagation changes 2025-08-28 16:28:44 +02:00
include iosys-map: Fix undefined behavior in iosys_map_clear() 2025-08-28 16:28:47 +02:00
init
io_uring
ipc
kernel cgroup/cpuset: Use static_branch_enable_cpuslocked() on cpusets_insane_config_key 2025-08-28 16:28:47 +02:00
lib
LICENSES
mm mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn 2025-08-28 16:28:43 +02:00
net ipv6: sr: validate HMAC algorithm ID in seg6_hmac_info_add 2025-08-28 16:28:48 +02:00
rust
samples
scripts kconfig: lxdialog: fix 'space' to (de)select options 2025-08-28 16:28:29 +02:00
security
sound ALSA: usb-audio: Fix size validation in convert_chmap_v3() 2025-08-28 16:28:48 +02:00
tools selftests: mptcp: pm: check flush doesn't reset limits 2025-08-28 16:28:44 +02:00
usr
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Makefile kbuild: userprogs: use correct linker when mixing clang and GNU ld 2025-08-28 16:28:42 +02:00
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