fix it.
Fixes: 24dea04767e6 ("bpf, x32: remove ld_abs/ld_ind")
Signed-off-by: Wang YanQing
---
arch/x86/net/bpf_jit_comp32.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/net/bpf_jit_comp32.c b/arch/x86/net/bpf_jit_comp32.c
index 5579987..8f6cc71
For me, as a reader whose mother language isn't English, the
old words bring a little difficulty to catch the meaning, this
patch rewords the subsection in a more clarificatory way.
This patch also add blank lines as separator at two places
to improve readability.
Signed-off-by: Wang Ya
On Sat, Apr 28, 2018 at 01:29:17PM +0800, Wang YanQing wrote:
> On Sat, Apr 28, 2018 at 01:33:15AM +0200, Daniel Borkmann wrote:
> > On 04/28/2018 12:48 AM, Alexei Starovoitov wrote:
> > > On Thu, Apr 26, 2018 at 05:57:49PM +0800, Wang YanQing wrote:
> >
% improvement.
See Documentation/networking/filter.txt for more information.
Signed-off-by: Wang YanQing
---
Changes v5-v6:
1:Add do {} while (0) to RETPOLINE_RAX_BPF_JIT for
consistence reason.
2:Clean up non-standard comments, reported by Daniel Borkmann.
3:Fix a memory leak issue
% improvement.
See Documentation/networking/filter.txt for more information.
Signed-off-by: Wang YanQing
---
Changes v4-v5:
1:Delete is_on_stack, BPF_REG_AX is the only one
on real hardware registers, so just check with
it.
2:Apply commit 1612a981b766 ("bpf, x64: fix JIT e
On Sat, Apr 28, 2018 at 01:33:15AM +0200, Daniel Borkmann wrote:
> On 04/28/2018 12:48 AM, Alexei Starovoitov wrote:
> > On Thu, Apr 26, 2018 at 05:57:49PM +0800, Wang YanQing wrote:
> >> All the testcases for BPF_PROG_TYPE_PERF_EVENT program type in
> >> test_verif
% improvement.
See Documentation/networking/filter.txt for more information.
Signed-off-by: Wang YanQing
---
Changes v3-v4:
1:Fix changelog in commit.
I install llvm-6.0, then test_progs willn't report errors.
I submit another patch:
"bpf: fix misaligned access for BPF_PROG_TY
This patch fix it, the fix isn't only necessary for x86_32, it will fix the
same problem for other platforms too, if their size of bpf_user_pt_regs_t
can't divide exactly into 8.
Signed-off-by: Wang YanQing
---
Hi all!
After mainline accept this patch, then we need to submit a sync
On Wed, Apr 25, 2018 at 02:11:16AM +0200, Daniel Borkmann wrote:
> On 04/19/2018 05:54 PM, Wang YanQing wrote:
> > Testing results on i5-5200U:
> >
> > 1) test_bpf: Summary: 349 PASSED, 0 FAILED, [319/341 JIT'ed]
> > 2) test_progs: Summary: 81 PASSED, 2 FAILED.
test_pkt_access:PASS:ipv6:5092/100=50
test_xdp:PASS:ipv4:131902/100=1319
test_xdp:PASS:ipv6:77932/100=779
test_l4lb:PASS:ipv4:38924/100=389
test_l4lb:PASS:ipv6:57520/100=575
The numbers show we get 30%~50% improvement.
See Documentation/networking/filter.txt for more information.
Signed-off-by: Wa
On Wed, Apr 25, 2018 at 02:11:16AM +0200, Daniel Borkmann wrote:
> On 04/19/2018 05:54 PM, Wang YanQing wrote:
> > The JIT compiler emits ia32 bit instructions. Currently, It supports
> > eBPF only. Classic BPF is supported because of the conversion by BPF core.
> >
> &
turn off jit_harden, if we want to speedup
jit_harden, then we need to move BPF_REG_AX to *real* register instead of stack
emulation, but when we do it, we need to face all the pain I describe above. We
can do it in next step.
See Documentation/networking/filter.txt for more information.
On Wed, Apr 18, 2018 at 05:31:18PM +0800, Wang YanQing wrote:
> The JIT compiler emits ia32 bit instructions. Currently, It supports
> eBPF only. Classic BPF is supported because of the conversion by BPF core.
>
> Almost all instructions from eBPF ISA supported except the following:
but If we do it, we need to face all the pain I describe above. We
can do it in next step.
See Documentation/networking/filter.txt for more information.
Signed-off-by: Wang YanQing
---
arch/x86/Kconfig |2 +-
arch/x86/include/asm/nospec-branch.h | 26 +-
arch/x86/
If we then OR this with 0x40, then the value of 6th bit (0th is first bit)
become known, so the right mask is 0xbf instead of 0xcf.
Signed-off-by: Wang YanQing
---
Documentation/networking/filter.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/networking
/0x80
[ 7612.095832] [] do_fast_syscall_32+0x84/0x120
[ 7612.095839] [] sysenter_past_esp+0x36/0x55
[ 7612.095844] ---[ end trace 97e9c637a20e8348 ]---
Signed-off-by: Wang YanQing
Cc: Stable
---
Changes:
v1-v2:
1: add a Cc to stable.
drivers/net/wireless/realtek/rtlwifi/pci.c | 2 +-
1
/0x80
[ 7612.095832] [] do_fast_syscall_32+0x84/0x120
[ 7612.095839] [] sysenter_past_esp+0x36/0x55
[ 7612.095844] ---[ end trace 97e9c637a20e8348 ]---
Signed-off-by: Wang YanQing
---
drivers/net/wireless/realtek/rtlwifi/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/dr
rtl_lps_enter does two successive check for cnt_after_linked
to make sure some time has elapsed after linked. The second
check isn't necessary, because if cnt_after_linked is bigger
than 5, it is bigger than 2 of course!
This patch remove the second check code.
Signed-off-by: Wang Ya
d rtl_lps_enter() to
use work queue")
Signed-off-by: Wang YanQing
CC: Stable [3.10+]
---
Hi, Larry!
Because commit a269913c52ad is the first commit bring this problem,
so maybe use above commit message is ok, right? And stable kernels
3.10-3.18 don't have commit fd09ff9587
We have checked cnt_after_linked in below code:
"
/*sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! */
if (mac->cnt_after_linked < 5)
return;
"
So the second check isn't necessary.
This patch delete second check code.
Signed-off-by: Wang YanQ
for enter/leave power state")
follow previous mistake, bring us to current code.
This patch fix it.
Signed-off-by: Wang YanQing
---
I think this patch should be ported back to stable kernels, 3.10+.
In my machine, I will lost wifi connection after minutes if I enable
fwlps.
drivers/
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