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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-04 06:19:37 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-04 06:19:37 -0800 |
| commit | ed5551279c9100aff6adf337d809057a7532b6f7 (patch) | |
| tree | 32835b919718c82f7a414041d7951971733c2dfe /arch/parisc/mm/fault.c | |
| parent | f1a27f081c1fa1eeebf38406e45f29636114470f (diff) | |
| parent | 54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478 (diff) | |
Merge 6.8-rc3 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/parisc/mm/fault.c')
| -rw-r--r-- | arch/parisc/mm/fault.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c index 2fe5b44986e0..c39de84e98b0 100644 --- a/arch/parisc/mm/fault.c +++ b/arch/parisc/mm/fault.c @@ -150,11 +150,16 @@ int fixup_exception(struct pt_regs *regs) * Fix up get_user() and put_user(). * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets the least-significant * bit in the relative address of the fixup routine to indicate - * that gr[ASM_EXCEPTIONTABLE_REG] should be loaded with - * -EFAULT to report a userspace access error. + * that the register encoded in the "or %r0,%r0,register" + * opcode should be loaded with -EFAULT to report a userspace + * access error. */ if (fix->fixup & 1) { - regs->gr[ASM_EXCEPTIONTABLE_REG] = -EFAULT; + int fault_error_reg = fix->err_opcode & 0x1f; + if (!WARN_ON(!fault_error_reg)) + regs->gr[fault_error_reg] = -EFAULT; + pr_debug("Unalignment fixup of register %d at %pS\n", + fault_error_reg, (void*)regs->iaoq[0]); /* zero target register for get_user() */ if (parisc_acctyp(0, regs->iir) == VM_READ) { |