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| author | Suzuki K Poulose <[email protected]> | 2017-10-06 13:16:52 +0000 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2017-10-06 15:35:21 +0000 |
| commit | c0d8832e78cbfd4a64b7112e34920af4b0b0e60e (patch) | |
| tree | 88956debba4dc1034e63313220c53d0399560242 /drivers/iio/trigger/stm32-timer-trigger.c | |
| parent | arm64: Use larger stacks when KASAN is selected (diff) | |
| download | kernel-c0d8832e78cbfd4a64b7112e34920af4b0b0e60e.tar.gz kernel-c0d8832e78cbfd4a64b7112e34920af4b0b0e60e.zip | |
arm64: Ensure the instruction emulation is ready for userspace
We trap and emulate some instructions (e.g, mrs, deprecated instructions)
for the userspace. However the handlers for these are registered as
late_initcalls and the userspace could be up and running from the initramfs
by that time (with populate_rootfs, which is a rootfs_initcall()). This
could cause problems for the early applications ending up in failure
like :
[ 11.152061] modprobe[93]: undefined instruction: pc=0000ffff8ca48ff4
This patch promotes the specific calls to core_initcalls, which are
guaranteed to be completed before we hit userspace.
Cc: [email protected]
Cc: Dave Martin <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: James Morse <[email protected]>
Reported-by: Matwey V. Kornilov <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Diffstat (limited to 'drivers/iio/trigger/stm32-timer-trigger.c')
0 files changed, 0 insertions, 0 deletions