1 files changed, 0 insertions, 67 deletions

diff --git a/recipes-kernel/linux/linux-qoriq/powerpc-vdso64-Use-double-word-compare-on-pointers.patch b/recipes-kernel/linux/linux-qoriq/powerpc-vdso64-Use-double-word-compare-on-pointers.patch
deleted file mode 100644
index 9fa40de4..00000000
--- a/recipes-kernel/linux/linux-qoriq/powerpc-vdso64-Use-double-word-compare-on-pointers.patch
+++ /dev/null
@@ -1,67 +0,0 @@
-From 5045ea37377ce8cca6890d32b127ad6770e6dce5 Mon Sep 17 00:00:00 2001
-From: Anton Blanchard <anton@samba.org>
-Date: Sun, 25 Sep 2016 17:16:53 +1000
-Subject: [PATCH] powerpc/vdso64: Use double word compare on pointers
-
-__kernel_get_syscall_map() and __kernel_clock_getres() use cmpli to
-check if the passed in pointer is non zero. cmpli maps to a 32 bit
-compare on binutils, so we ignore the top 32 bits.
-
-A simple test case can be created by passing in a bogus pointer with
-the bottom 32 bits clear. Using a clk_id that is handled by the VDSO,
-then one that is handled by the kernel shows the problem:
-
-  printf("%d\n", clock_getres(CLOCK_REALTIME, (void *)0x100000000));
-  printf("%d\n", clock_getres(CLOCK_BOOTTIME, (void *)0x100000000));
-
-And we get:
-
-  0
-  -1
-
-The bigger issue is if we pass a valid pointer with the bottom 32 bits
-clear, in this case we will return success but won't write any data
-to the pointer.
-
-I stumbled across this issue because the LLVM integrated assembler
-doesn't accept cmpli with 3 arguments. Fix this by converting them to
-cmpldi.
-
-Fixes: a7f290dad32e ("[PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel")
-Cc: stable@vger.kernel.org # v2.6.15+
-Signed-off-by: Anton Blanchard <anton@samba.org>
-Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
----
- arch/powerpc/kernel/vdso64/datapage.S     | 2 +-
- arch/powerpc/kernel/vdso64/gettimeofday.S | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/arch/powerpc/kernel/vdso64/datapage.S b/arch/powerpc/kernel/vdso64/datapage.S
-index 184a6ba..abf17fe 100644
---- a/arch/powerpc/kernel/vdso64/datapage.S
-+++ b/arch/powerpc/kernel/vdso64/datapage.S
-@@ -59,7 +59,7 @@ V_FUNCTION_BEGIN(__kernel_get_syscall_map)
-        bl      V_LOCAL_FUNC(__get_datapage)
-        mtlr    r12
-        addi    r3,r3,CFG_SYSCALL_MAP64
--       cmpli   cr0,r4,0
-+       cmpldi  cr0,r4,0
-        crclr   cr0*4+so
-        beqlr
-        li      r0,NR_syscalls
-diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
-index a76b4af..3820213 100644
---- a/arch/powerpc/kernel/vdso64/gettimeofday.S
-+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
-@@ -145,7 +145,7 @@ V_FUNCTION_BEGIN(__kernel_clock_getres)
-        bne     cr0,99f
- 
-        li      r3,0
--       cmpli   cr0,r4,0
-+       cmpldi  cr0,r4,0
-        crclr   cr0*4+so
-        beqlr
-        lis     r5,CLOCK_REALTIME_RES@h
--- 
-2.7.4
-