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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-08-03 15:14:27 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-08-07 08:53:59 +1000 |
| commit | 62376365048878f770d8b7d11b89b8b3e18018f1 (patch) | |
| tree | df5eaa6133cb07121d1bcd1a0ce0e0bfa92cac55 /block/bfq-cgroup.c | |
| parent | a88603f4b92ecef9e2359e40bcb99ad399d85dd7 (diff) | |
powerpc/32s: Fix napping restore in data storage interrupt (DSI)
When a DSI (Data Storage Interrupt) is taken while in NAP mode,
r11 doesn't survive the call to power_save_ppc32_restore().
So use r1 instead of r11 as they both contain the virtual stack
pointer at that point.
Fixes: 4c0104a83fc3 ("powerpc/32: Dismantle EXC_XFER_STD/LITE/TEMPLATE")
Cc: stable@vger.kernel.org # v5.13+
Reported-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/731694e0885271f6ee9ffc179eb4bcee78313682.1628003562.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'block/bfq-cgroup.c')
0 files changed, 0 insertions, 0 deletions