From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 29 Jul 2015 09:20:07 +0200 From: Martin Schwidefsky Subject: [GIT PULL] s390 patches for 4.2-rc5 Message-ID: <20150729092007.0b647979@mschwide> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-Archive: List-Post: To: Linus Torvalds Cc: linux-kernel , linux-s390 , Heiko Carstens , Stephen Powell List-ID: Hi Linus, please pull from the 'for-linus' branch of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git for-linus to receive the following updates: Two bug fixes: - Fix a crash on pre-z10 hardware due to cache-info - Fix an issue with classic BPF programs in the eBPF JIT Heiko Carstens (1): s390/cachinfo: add missing facility check to init_cache_level() Michael Holzheu (1): s390/bpf: clear correct BPF accumulator register arch/s390/kernel/cache.c | 2 ++ arch/s390/net/bpf_jit_comp.c | 14 +++++++------- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c index bff5e3b..8ba3243 100644 --- a/arch/s390/kernel/cache.c +++ b/arch/s390/kernel/cache.c @@ -138,6 +138,8 @@ int init_cache_level(unsigned int cpu) union cache_topology ct; enum cache_type ctype; + if (!test_facility(34)) + return -EOPNOTSUPP; if (!this_cpu_ci) return -EINVAL; ct.raw = ecag(EXTRACT_TOPOLOGY, 0, 0); diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index fee782a..8d2e516 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -448,13 +448,13 @@ static void bpf_jit_prologue(struct bpf_jit *jit) EMIT6_DISP_LH(0xe3000000, 0x0004, REG_SKB_DATA, REG_0, BPF_REG_1, offsetof(struct sk_buff, data)); } - /* BPF compatibility: clear A (%b7) and X (%b8) registers */ - if (REG_SEEN(BPF_REG_7)) - /* lghi %b7,0 */ - EMIT4_IMM(0xa7090000, BPF_REG_7, 0); - if (REG_SEEN(BPF_REG_8)) - /* lghi %b8,0 */ - EMIT4_IMM(0xa7090000, BPF_REG_8, 0); + /* BPF compatibility: clear A (%b0) and X (%b7) registers */ + if (REG_SEEN(BPF_REG_A)) + /* lghi %ba,0 */ + EMIT4_IMM(0xa7090000, BPF_REG_A, 0); + if (REG_SEEN(BPF_REG_X)) + /* lghi %bx,0 */ + EMIT4_IMM(0xa7090000, BPF_REG_X, 0); } /*