diff options
| author | Guan-Yu Lin <guanyulin@google.com> | 2026-04-01 12:32:17 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-02 09:43:26 +0200 |
| commit | bd3d245b0fef571f93504904df62b8865b1c0d34 (patch) | |
| tree | 1d37ac524cf4db558d5b86a11a4e545bbea5e8e9 /include/asm-arm/git@git.tavy.me:linux.git | |
| parent | c32f8748d70c8fc77676ad92ed76cede17bf2c48 (diff) | |
usb: core: use dedicated spinlock for offload state
Replace the coarse USB device lock with a dedicated offload_lock
spinlock to reduce contention during offload operations. Use
offload_pm_locked to synchronize with PM transitions and replace
the legacy offload_at_suspend flag.
Optimize usb_offload_get/put by switching from auto-resume/suspend
to pm_runtime_get_if_active(). This ensures offload state is only
modified when the device is already active, avoiding unnecessary
power transitions.
Cc: stable <stable@kernel.org>
Fixes: ef82a4803aab ("xhci: sideband: add api to trace sideband usage")
Signed-off-by: Guan-Yu Lin <guanyulin@google.com>
Tested-by: Hailong Liu <hailong.liu@oppo.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://patch.msgid.link/20260401123238.3790062-2-guanyulin@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/asm-arm/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions