lement get_user_pages_fast without locking in the fastpath on ARM.
This work is derived from the x86 version and adapted to ARM.
Signed-off-by: Zi Shen Lim
---
arch/arm/mm/Makefile | 4 +-
arch/arm/mm/gup.c| 330 +++
2 files changed, 332 insertions(+), 2 del
Thanks for your feedback Will.
On Thu, Oct 3, 2013 at 10:27 AM, Will Deacon wrote:
> On Thu, Oct 03, 2013 at 06:15:15PM +0100, Zi Shen Lim wrote:
>> Futex uses GUP. Currently on ARM, the default __get_user_pages_fast
>> being used always returns 0, leading to a forever loop i
Signed-off-by: Zi Shen Lim
---
Documentation/vfio.txt | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
index d7993dc..b9ca023 100644
--- a/Documentation/vfio.txt
+++ b/Documentation/vfio.txt
@@ -167,8 +167,8 @@ group and
Keep checkpatch happy by addressing the following:
CHECK: Alignment should match open parenthesis
CHECK: Blank lines aren't necessary after an open brace '{'
CHECK: No space is necessary after a cast
Signed-off-by: Zi Shen Lim
---
drivers/staging/android/ashmem.c | 12 +
Introduce function to generate add/subtract (shifted register)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 11 ++
arch/arm64/kernel/insn.c | 49 +++
2 files changed, 60 insertions(+)
diff --git a/arch/arm64
Introduce function to generate data-processing (2 source) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 20 ++
arch/arm64/kernel/insn.c | 48 +++
2 files changed, 68 insertions(+)
diff --git a/arch
Introduce function to generate data-processing (3 source) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 14 ++
arch/arm64/kernel/insn.c | 42 ++
2 files changed, 56 insertions(+)
diff --git a/arch/arm64
oc/sys/net/core/bpf_jit_enable
See Documentation/networking/filter.txt for more information.
The implementation passes all 57 tests in lib/test_bpf.c
on ARMv8 Foundation Model :)
Signed-off-by: Zi Shen Lim
Acked-by: Alexei Starovoitov
---
RFCv3->v1:
Addressed review comments from Will wr
Introduce function to generate compare & branch (immediate)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 57
arch/arm64/kernel/insn.c | 88 ---
2 files changed, 140 insertions(+
Introduce function to generate load/store (register offset)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 20 ++
arch/arm64/kernel/insn.c | 62 +++
2 files changed, 82 insertions(+)
diff --git a/arch/arm64
Introduce function to generate logical (shifted register)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 25 ++
arch/arm64/kernel/insn.c | 60 +++
2 files changed, 85 insertions(+)
diff --git a/arch
Introduce function to generate data-processing (1 source) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 13 +
arch/arm64/kernel/insn.c | 37 +
2 files changed, 50 insertions(+)
diff --git a/arch/arm64/include
Introduce function to generate bitfield instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 16 +
arch/arm64/kernel/insn.c | 56 +++
2 files changed, 72 insertions(+)
diff --git a/arch/arm64/include/asm/insn.h b
Introduce function to generate conditional branch (immediate)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 21 +
arch/arm64/kernel/insn.c | 17 +
2 files changed, 38 insertions(+)
diff --git a/arch/arm64/include/asm
Introduce function to generate move wide (immediate) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 13 +
arch/arm64/kernel/insn.c | 43 +++
2 files changed, 56 insertions(+)
diff --git a/arch/arm64/include
Introduce function to generate add/subtract (immediate) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 16
arch/arm64/kernel/insn.c | 44 +++
2 files changed, 60 insertions(+)
diff --git a/arch/arm64
Introduce function to generate load/store pair instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 16 +++
arch/arm64/kernel/insn.c | 65 +++
2 files changed, 81 insertions(+)
diff --git a/arch/arm64/include/asm
Introduce function to generate unconditional branch (register)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 7 +++
arch/arm64/kernel/insn.c | 35 +--
2 files changed, 40 insertions(+), 2 deletions(-)
diff --git a/arch
14-07-18 11:06:28 -0700)
------------
Zi Shen Lim (14):
arm64: introduce aarch64_insn_gen_comp_branch_imm()
arm64: introduce aarch64_insn_gen_branch_reg()
arm64: introduce aarch64_insn_gen_cond_branch_imm()
arm64: introduce aarch64_insn_gen_load_store_reg()
arm64: introduce aarch64_i
").
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/topology.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/include/asm/topology.h
b/arch/arm64/include/asm/topology.h
index 0172e6d..7ebcd31 100644
--- a/arch/arm64/include/asm/topology.h
+++ b/arch/arm64/include/asm
tp://www.spinics.net/lists/arm-kernel/msg324506.html
Zi Shen Lim (2):
arm64, sched: Remove unused mc_capable() and smt_capable()
arm64: topology: add MPIDR-based detection
arch/arm64/include/asm/cputype.h | 2 ++
arch/arm64/include/asm/topology.h | 3 ---
arch/arm
Create cpu topology based on MPIDR. When hardware sets MPIDR to sane
values, this method will always work. Therefore it should also work well
as the fallback method. [1]
[1] http://www.spinics.net/lists/arm-kernel/msg317445.html
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/cputype.h
: Joe Perches
Signed-off-by: Zi Shen Lim
---
Note: This patch is based on suggestion by Joe Perches.
I added his Signed-off-by as well since I didn't receive an objection.
drivers/net/ethernet/smsc/smc91x.c | 23 ---
1 file changed, 12 insertions(+), 11 deletions(-)
diff
On Wed, Apr 23, 2014 at 11:36:48AM +0100, Mark Brown wrote:
> On Tue, Apr 22, 2014 at 06:40:14PM -0700, Zi Shen Lim wrote:
>
> > + /* Multiprocessor system */
> > + if (mpidr & MPIDR_MT_BITMASK) {
> > +
On Wed, Apr 23, 2014 at 07:26:11PM +0100, Mark Brown wrote:
> On Wed, Apr 23, 2014 at 10:27:20AM -0700, Zi Shen Lim wrote:
>
> It will at least ensure that all clusters get assigned a unique ID and
> we don't end up discarding some of the information and coming out with
> two
ing multi-level clusters in DT.
Many thanks to Mark for review and comments!
Link to initial posting of this series:
https://lkml.org/lkml/2014/4/22/950
Zi Shen Lim (2):
arm64, sched: Remove unused mc_capable() and smt_capable()
arm64: topology: add MPIDR-based detection
arch/arm
quot;).
Reviewed-by: Mark Brown
Signed-off-by: Zi Shen Lim
---
v1->v2: No changes.
- Added Mark's review-by.
arch/arm64/include/asm/topology.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/include/asm/topology.h
b/arch/arm64/include/asm/topology.h
index 0172e6d..7eb
to highest)
to threads (if they exist), cores, and clusters.
We combine data from all higher affinity levels into cluster_id
so we don't lose any information from MPIDR. [2]
[1] http://www.spinics.net/lists/arm-kernel/msg317445.html
[2] https://lkml.org/lkml/2014/4/23/703
Signed-off-by: Zi
) noted support for 'shift by register'
in eBPF and added support for it for x64. Let's enable this for arm64
as well.
The arm64 eBPF JIT compiler now passes the new 'shift by register'
test case introduced in the same commit 72b603ee8cfc.
Signed-off-by: Zi Shen Lim
Cc: C
e (net: filter: add "load 64-bit immediate" eBPF
instruction) introduced a new eBPF instruction. Let's add support
for this for arm64 as well.
Our arm64 eBPF JIT compiler now passes the new "load 64-bit
immediate" test case introduced in the same commit 02ab695bb37e.
Signed-o
Hi Lorenzo,
On Fri, Apr 25, 2014 at 12:18:43PM +0100, Lorenzo Pieralisi wrote:
> On Fri, Apr 25, 2014 at 04:18:42AM +0100, Zi Shen Lim wrote:
> > Create cpu topology based on MPIDR. When hardware sets MPIDR to sane
> > values, this method will always work. Therefore it should
to highest)
to threads (if they exist), cores, and clusters.
We combine data from all higher affinity levels into cluster_id
so we don't lose any information from MPIDR. [2]
[1] http://www.spinics.net/lists/arm-kernel/msg317445.html
[2] https://lkml.org/lkml/2014/4/23/703
Signed-off-by: Zi
#x27;kiblnd_disconnect_conn' was not declared. Should it be static?
drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:3247:1: warning: symbol
'kiblnd_complete' was not declared. Should it be static?
drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:904:20: warning: context
im
This series implements eBPF JIT compiler for arm64.
See [14/14] for change log.
Patches [1-13/14] implement code generation functions.
Patch [14/14] implements the actual eBPF JIT compiler.
Zi Shen Lim (14):
arm64: introduce aarch64_insn_gen_comp_branch_imm()
arm64: introduce
Introduce function to generate data-processing (1 source) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 13 +
arch/arm64/kernel/insn.c | 37 +
2 files changed, 50 insertions(+)
diff --git a/arch/arm64/include
Introduce function to generate data-processing (2 source) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 20 ++
arch/arm64/kernel/insn.c | 48 +++
2 files changed, 68 insertions(+)
diff --git a/arch
Introduce function to generate load/store pair instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 16 +++
arch/arm64/kernel/insn.c | 65 +++
2 files changed, 81 insertions(+)
diff --git a/arch/arm64/include/asm
Introduce function to generate add/subtract (immediate) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 16
arch/arm64/kernel/insn.c | 44 +++
2 files changed, 60 insertions(+)
diff --git a/arch/arm64
Introduce function to generate move wide (immediate) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 13 +
arch/arm64/kernel/insn.c | 43 +++
2 files changed, 56 insertions(+)
diff --git a/arch/arm64/include
Introduce function to generate bitfield instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 16 +
arch/arm64/kernel/insn.c | 56 +++
2 files changed, 72 insertions(+)
diff --git a/arch/arm64/include/asm/insn.h b
Introduce function to generate add/subtract (shifted register)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 11 ++
arch/arm64/kernel/insn.c | 49 +++
2 files changed, 60 insertions(+)
diff --git a/arch/arm64
Introduce function to generate data-processing (3 source) instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 14 ++
arch/arm64/kernel/insn.c | 42 ++
2 files changed, 56 insertions(+)
diff --git a/arch/arm64
oc/sys/net/core/bpf_jit_enable
See Documentation/networking/filter.txt for more information.
The implementation passes all 57 tests in lib/test_bpf.c
on ARMv8 Foundation Model :)
Signed-off-by: Zi Shen Lim
Acked-by: Alexei Starovoitov
---
RFCv2->RFCv3:
- clarify 16B stack alignment requir
Introduce function to generate load/store (register offset)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 20 ++
arch/arm64/kernel/insn.c | 62 +++
2 files changed, 82 insertions(+)
diff --git a/arch/arm64
Introduce function to generate unconditional branch (register)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 7 +++
arch/arm64/kernel/insn.c | 35 +--
2 files changed, 40 insertions(+), 2 deletions(-)
diff --git a/arch
Introduce function to generate conditional branch (immediate)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 21 +
arch/arm64/kernel/insn.c | 17 +
2 files changed, 38 insertions(+)
diff --git a/arch/arm64/include/asm
Introduce function to generate compare & branch (immediate)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 57
arch/arm64/kernel/insn.c | 86 ---
2 files changed, 138 insertions(+
Introduce function to generate logical (shifted register)
instructions.
Signed-off-by: Zi Shen Lim
---
arch/arm64/include/asm/insn.h | 25 ++
arch/arm64/kernel/insn.c | 60 +++
2 files changed, 85 insertions(+)
diff --git a/arch
oc/sys/net/core/bpf_jit_enable
See Documentation/networking/filter.txt for more information.
The implementation passes all 57 tests in lib/test_bpf.c
on ARMv8 Foundation Model :)
Signed-off-by: Zi Shen Lim
NOTES:
* This patch applies on top of current net-next @ 763e0ecd72fe
("bonding: a
load_pointer() is already a static inline function.
Let's move it into filter.h so BPF JIT implementations can reuse this
function.
Signed-off-by: Zi Shen Lim
---
This patch is based on discussion with Alexei in the context of
reusing load_pointer for upcoming arm64 BPF JIT compile
load_pointer() is already a static inline function.
Let's move it into filter.h so BPF JIT implementations can reuse this
function.
Since we're exporting this function, let's also rename it to
bpf_load_pointer() for clarity.
Signed-off-by: Zi Shen Lim
---
v1->v2:
* Renamed to
On Wed, Jul 16, 2014 at 05:04:50PM +0100, Will Deacon wrote:
> On Tue, Jul 15, 2014 at 07:24:59AM +0100, Zi Shen Lim wrote:
[...]
> > +enum aarch64_insn_register {
> > + AARCH64_INSN_REG_0 = 0,
> > + AARCH64_INSN_REG_1 = 1,
> > + AARCH64_INSN_REG_2 = 2,
>
On Wed, Jul 16, 2014 at 05:17:15PM +0100, Will Deacon wrote:
> On Tue, Jul 15, 2014 at 07:25:06AM +0100, Zi Shen Lim wrote:
> > Introduce function to generate move wide (immediate) instructions.
>
> [...]
>
> > +u32 aarch64_insn_gen_movewide(enum a
On Wed, Jul 16, 2014 at 05:21:47PM +0100, Will Deacon wrote:
> On Wed, Jul 16, 2014 at 11:41:53AM +0100, Will Deacon wrote:
> > On Tue, Jul 15, 2014 at 07:24:58AM +0100, Zi Shen Lim wrote:
> > > This series implements eBPF JIT compiler for arm64.
> > >
oc/sys/net/core/bpf_jit_enable
See Documentation/networking/filter.txt for more information.
The implementation passes all 57 tests in lib/test_bpf.c
on ARMv8 Foundation Model :)
Signed-off-by: Zi Shen Lim
---
RFCv1->RFCv2:
Addressed review comments from Alexei:
- use core-$(CONFIG_NET
ot;, CARDNAME, __func__);
^
Fix it by passing in the appropriate netdev pointer.
Signed-off-by: Zi Shen Lim
---
drivers/net/ethernet/smsc/smc91x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/smsc/smc91x.c
b/drivers/net/ethernet/smsc/smc91x.c
Hi Joe,
On Fri, Apr 18, 2014 at 09:06:53PM -0700, Joe Perches wrote:
> On Fri, 2014-04-18 at 20:47 -0700, Zi Shen Lim wrote:
> > When SMC_DEBUG >= 2, we hit the following compilation error:
> >
> > drivers/net/ethernet/smsc/smc91x.c:85:0:
> > drivers/net/ether
Introduce function to generate unconditional branch (register)
instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 7 +++
arch/arm64/kernel/insn.c | 35 +--
2 files changed, 40 insertions(+), 2 deletions
Introduce function to generate bitfield instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 16 +
arch/arm64/kernel/insn.c | 56 +++
2 files changed, 72 insertions(+)
diff --git a/arch
oc/sys/net/core/bpf_jit_enable
See Documentation/networking/filter.txt for more information.
The implementation passes all 57 tests in lib/test_bpf.c
on ARMv8 Foundation Model :) Also tested by Will on Juno platform.
Signed-off-by: Zi Shen Lim
Acked-by: Alexei Starovoitov
Acked-by: Will Deacon
Introduce function to generate logical (shifted register)
instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 25 ++
arch/arm64/kernel/insn.c | 60 +++
2 files changed, 85 insertions
Introduce function to generate data-processing (3 source) instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 14 ++
arch/arm64/kernel/insn.c | 42 ++
2 files changed, 56 insertions(+)
diff
Introduce function to generate add/subtract (shifted register)
instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 11 ++
arch/arm64/kernel/insn.c | 49 +++
2 files changed, 60 insertions
Introduce function to generate data-processing (2 source) instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 20 ++
arch/arm64/kernel/insn.c | 48 +++
2 files changed, 68 insertions
Introduce function to generate add/subtract (immediate) instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 16
arch/arm64/kernel/insn.c | 44 +++
2 files changed, 60 insertions
Introduce function to generate move wide (immediate) instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 13 +
arch/arm64/kernel/insn.c | 43 +++
2 files changed, 56 insertions(+)
diff
Introduce function to generate load/store pair instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 16 +++
arch/arm64/kernel/insn.c | 65 +++
2 files changed, 81 insertions(+)
diff --git a/arch
Introduce function to generate data-processing (1 source) instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 13 +
arch/arm64/kernel/insn.c | 37 +
2 files changed, 50 insertions(+)
diff --git
Introduce function to generate conditional branch (immediate)
instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 21 +
arch/arm64/kernel/insn.c | 17 +
2 files changed, 38 insertions(+)
diff --git a/arch
4/net/bpf_jit_comp.c
Zi Shen Lim (14):
arm64: introduce aarch64_insn_gen_comp_branch_imm()
arm64: introduce aarch64_insn_gen_branch_reg()
arm64: introduce aarch64_insn_gen_cond_branch_imm()
arm64: introduce aarch64_insn_gen_load_store_reg()
arm64: introduce aarch64_insn_gen_load_store_pair()
Introduce function to generate compare & branch (immediate)
instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 57
arch/arm64/kernel/insn.c | 88 ---
2 files changed,
Introduce function to generate load/store (register offset)
instructions.
Signed-off-by: Zi Shen Lim
Acked-by: Will Deacon
---
arch/arm64/include/asm/insn.h | 20 ++
arch/arm64/kernel/insn.c | 62 +++
2 files changed, 82 insertions
Hanjun,
On Tue, Aug 19, 2014 at 6:00 AM, Hanjun Guo wrote:
> Will INTERRUPT_CONTROLLER confuse people? There is only one GIC redistributor
> (some people regard it as interrupt controller) in ARM system, if we use
> INTERRUPT_CONTROLLER people will regard it as multi-redistributors in the
> syste
During code review, I noticed we were passing a bad buffer pointer
to bpf_load_pointer helper function called by jitted code.
Point to the buffer allocated by JIT, so we don't silently corrupt
other parts of the stack.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c
ction.
> It has BPF_EXIT insn which can appear anywhere in the program
> one or more times and it doesn't have to be last insn.
[1] https://lkml.org/lkml/2014/11/27/2
Fixes: e54bcde3d69d ("arm64: eBPF JIT compiler")
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_c
Turns out in the case of modulo by zero in a BPF program:
A = A % X; (X == 0)
the expected behavior is to terminate with return value 0.
The bug in JIT is exposed by a new test case [1].
[1] https://lkml.org/lkml/2015/11/4/499
Signed-off-by: Zi Shen Lim
Reported-by: Yang Shi
Reported
eported-by: Shi, Yang
CC: Xi Wang
CC: Alexei Starovoitov
CC: Catalin Marinas
CC: linux-arm-ker...@lists.infradead.org
CC: linux-kernel@vger.kernel.org
Fixes: e54bcde3d69d ("arm64: eBPF JIT compiler")
Cc: # 3.18+
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit.h | 3
since v1:
- Added patch #1 to address build error due to missing header inclusion
in linux/bpf.h. (Thanks to suggestion and ack by Daniel Borkmann)
Ordered it ahead of bpf_tail_call patch #2 so build error is not
triggered.
Zi Shen Lim (4):
bpf: fix missing header inclusion
arm64
0644
--- a/arch/arm64/net/bpf_jit.h
+++ b/arch/arm64/net/bpf_jit.h
@@ -1,7 +1,7 @@
/*
* BPF JIT compiler for ARM64
*
- * Copyright (C) 2014-2015 Zi Shen Lim
+ * Copyright (C) 2014-2016 Zi Shen Lim
*
* This program is free software; you can redistribute it and/or modify
* it under the terms
Remove superfluous stack frame, saving us 3 instructions for every
LD_ABS or LD_IND.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 7ae304e..b2fc97a 100644
(-EOPNOTSUPP);
^
...
Fixes: 0fc174dea545 ("ebpf: make internal bpf API independent of
CONFIG_BPF_SYSCALL ifdefs")
Suggested-by: Daniel Borkmann
Signed-off-by: Zi Shen Lim
Acked-by: Daniel Borkmann
---
include/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/incl
Remove superfluous stack frame, saving us 3 instructions for
every JMP_CALL.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 51abc97..7ae304e 100644
--- a/arch
On Mon, Jun 6, 2016 at 1:11 AM, Daniel Borkmann wrote:
> On 06/06/2016 06:56 AM, Z Lim wrote:
> [...]
>>
>> How about the attached patch? Fixes compilation error on build
>> !CONFIG_BPF_SYSCALL.
>>
>> Also, should this patch be sent to net or net-next (along with this
>> series)?
>
>
> Looks good,
to missing header inclusion
in linux/bpf.h. (Thanks to suggestion and ack by Daniel Borkmann)
Ordered it ahead of bpf_tail_call patch #2 so build error is not
triggered.
Zi Shen Lim (4):
bpf: fix missing header inclusion
arm64: bpf: implement bpf_tail_call() helper
arm64: bpf
Remove superfluous stack frame, saving us 3 instructions for
every JMP_CALL.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 51abc97..7ae304e 100644
--- a/arch
Remove superfluous stack frame, saving us 3 instructions for every
LD_ABS or LD_IND.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 7ae304e..b2fc97a 100644
(-EOPNOTSUPP);
^
...
Fixes: 0fc174dea545 ("ebpf: make internal bpf API independent of
CONFIG_BPF_SYSCALL ifdefs")
Suggested-by: Daniel Borkmann
Signed-off-by: Zi Shen Lim
Acked-by: Daniel Borkmann
---
include/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/incl
0644
--- a/arch/arm64/net/bpf_jit.h
+++ b/arch/arm64/net/bpf_jit.h
@@ -1,7 +1,7 @@
/*
* BPF JIT compiler for ARM64
*
- * Copyright (C) 2014-2015 Zi Shen Lim
+ * Copyright (C) 2014-2016 Zi Shen Lim
*
* This program is free software; you can redistribute it and/or modify
* it under the terms
0644
--- a/arch/arm64/net/bpf_jit.h
+++ b/arch/arm64/net/bpf_jit.h
@@ -1,7 +1,7 @@
/*
* BPF JIT compiler for ARM64
*
- * Copyright (C) 2014-2015 Zi Shen Lim
+ * Copyright (C) 2014-2016 Zi Shen Lim
*
* This program is free software; you can redistribute it and/or modify
* it under the terms
Remove superfluous stack frame, saving us 3 instructions for
every JMP_CALL.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 51abc97..7ae304e 100644
--- a/arch
Remove superfluous stack frame, saving us 3 instructions for every
LD_ABS or LD_IND.
Signed-off-by: Zi Shen Lim
---
arch/arm64/net/bpf_jit_comp.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 7ae304e..b2fc97a 100644
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