s390/bpf: Fix offset parameter for skb_copy_bits()
Currently the offset parameter for skb_copy_bits is changed in
sk_load_word() and sk_load_half(). Therefore it is not correct when
calling skb_copy_bits(). Fix this and use the original offset
for the function call.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/net/bpf_jit.S b/arch/s390/net/bpf_jit.S
index d34b707..ede6108 100644
--- a/arch/s390/net/bpf_jit.S
+++ b/arch/s390/net/bpf_jit.S
@@ -44,6 +44,7 @@
sk_load_word_slow:
lgr %r9,%r2 # save %r2
+ lgr %r3,%r1 # offset
la %r4,160(%r15) # pointer to temp buffer
lhi %r5,4 # 4 bytes
brasl %r14,skb_copy_bits # get data from skb
@@ -69,6 +70,7 @@
sk_load_half_slow:
lgr %r9,%r2 # save %r2
+ lgr %r3,%r1 # offset
la %r4,162(%r15) # pointer to temp buffer
lhi %r5,2 # 2 bytes
brasl %r14,skb_copy_bits # get data from skb