The patch titled
Subject: arch/mips/kernel/traps: use vma_lookup() instead of find_vma()
has been removed from the -mm tree. Its filename was
arch-mips-kernel-traps-use-vma_lookup-instead-of-find_vma.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Liam Howlett <liam.howlett@xxxxxxxxxx>
Subject: arch/mips/kernel/traps: use vma_lookup() instead of find_vma()
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/20210521174745.2219620-8-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reviewed-by: Laurent Dufour <ldufour@xxxxxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Davidlohr Bueso <dbueso@xxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/mips/kernel/traps.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/arch/mips/kernel/traps.c~arch-mips-kernel-traps-use-vma_lookup-instead-of-find_vma
+++ a/arch/mips/kernel/traps.c
@@ -784,7 +784,6 @@ void force_fcr31_sig(unsigned long fcr31
int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcr31)
{
int si_code;
- struct vm_area_struct *vma;
switch (sig) {
case 0:
@@ -800,8 +799,7 @@ int process_fpemu_return(int sig, void _
case SIGSEGV:
mmap_read_lock(current->mm);
- vma = find_vma(current->mm, (unsigned long)fault_addr);
- if (vma && (vma->vm_start <= (unsigned long)fault_addr))
+ if (vma_lookup(current->mm, (unsigned long)fault_addr))
si_code = SEGV_ACCERR;
else
si_code = SEGV_MAPERR;
_
Patches currently in -mm which might be from liam.howlett@xxxxxxxxxx are
