diff options
Diffstat (limited to 'arch/parisc/mm')
| -rw-r--r-- | arch/parisc/mm/fault.c | 11 | ||||
| -rw-r--r-- | arch/parisc/mm/init.c | 1 |
2 files changed, 9 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) { diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index a2a3e89f2d9a..f876af56e13f 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -33,6 +33,7 @@ #include <asm/msgbuf.h> #include <asm/sparsemem.h> #include <asm/asm-offsets.h> +#include <asm/shmbuf.h> extern int data_start; extern void parisc_kernel_start(void); /* Kernel entry point in head.S */ |