[ Sasha's backport helper bot ]
Hi,
Found matching upstream commit: 751ecf6afd6568adc98f2a6052315552c0483d18
Status in newer kernel trees:
6.12.y | Present (exact SHA1)
6.6.y | Present (different SHA1: 51d11ea0250d)
6.1.y | Not found
Note: The patch differs from the upstream commit:
---
1: 751ecf6afd656 ! 1: b773f808e9357 arm64/sve: Discard stale CPU state when handling SVE traps
@@ Commit message
Reviewed-by: Mark Rutland <mark.rutland@xxxxxxx>
Link: https://lore.kernel.org/r/20241030-arm64-fpsimd-foreign-flush-v1-1-bd7bd66905a2@xxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
+ [Backported to 6.1 -- broonie]
+ (cherry picked from commit 751ecf6afd6568adc98f2a6052315552c0483d18)
## arch/arm64/kernel/fpsimd.c ##
@@ arch/arm64/kernel/fpsimd.c: static void sve_init_regs(void)
+ fpsimd_bind_task_to_cpu();
} else {
fpsimd_to_sve(current);
- current->thread.fp_type = FP_STATE_SVE;
+ fpsimd_flush_task_state(current);
}
}
---
Results of testing on various branches:
| Branch | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.1.y | Success | Success |
