mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2026-03-14 23:09:45 +01:00
The nand driver normally while waiting for the device to become ready;
this is normally fine, but xway_nand holds the ebu_lock spinlock, and
this can cause lockups if other threads which use ebu_lock are
interleaved. Fix this by waiting instead of polling.
This mainly showed up as crashes in ath9k_pci_owl_loader (see
https://github.com/openwrt/openwrt/issues/9829 ), but turning on
spinlock debugging shows this happening in other places too.
This doesn't seem to measurably impact boot time.
Tested on bt_homehub-v5a with 5.10 and 5.15.
Signed-off-by: Thomas Nixon <tom@tomn.co.uk>
[Add commit description into patch]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit
|
||
|---|---|---|
| .. | ||
| imagebuilder | ||
| linux | ||
| llvm-bpf | ||
| sdk | ||
| toolchain | ||
| Config.in | ||
| Makefile | ||