On Wed, Jan 13, 2021 at 11:13 AM Shakeel Butt wrote:
>
> On Wed, Jan 13, 2021 at 10:43 AM Roman Gushchin wrote:
> >
> > On Tue, Jan 12, 2021 at 04:18:44PM -0800, Shakeel Butt wrote:
> > > On Tue, Jan 12, 2021 at 4:12 PM Arjun Roy wrote:
> > > >
> > > > On Tue, Jan 12, 2021 at 3:48 PM Roman Gushc
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by TIPC at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Acked-by: Ying Xue
Tested-by: Ying Xue
Cc: Jon Maloy
Cc: "David S. Miller"
---
net/tipc/
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by openvswitch at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Acked-by: Pravin B Shelar
Cc: "David S. Miller"
Cc: d...@openvswitch.org
---
net/o
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by caif at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Dmitry Tarnyagin
Cc: "David S. Miller"
---
net/caif/cfpkt_skbuff.c | 1 -
net/caif/
On 1/5/18 7:17 AM, David Miller wrote:
From: "Yang Shi"
Date: Fri, 05 Jan 2018 06:46:48 +0800
Any more comment on this change?
These patches were not really submitted properly.
If you post a series, the series goes to one destination and
one tree.
If they are supposed to go t
Hi David,
I'm not sure if CAIF is still maintained by Dmitry Tarnyagin. Do you
have any comment on this one?
Thanks,
Yang
On 12/7/17 11:13 AM, Yang Shi wrote:
Hi folks,
Any comment on this one?
Thanks,
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been spli
Hi David,
Any comment is appreciated.
Thanks,
Yang
On 12/7/17 11:27 AM, Pravin Shelar wrote:
On Fri, Nov 17, 2017 at 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by openvswitch at all.
So
Hi David,
Any more comment on this change?
Thanks,
Yang
On 12/7/17 5:40 PM, Ying Xue wrote:
On 11/18/2017 07:02 AM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by TIPC at all.
So, remove the unused
On 12/7/17 11:20 AM, Jon Maloy wrote:
-Original Message-
From: netdev-ow...@vger.kernel.org [mailto:netdev-
ow...@vger.kernel.org] On Behalf Of Yang Shi
Sent: Thursday, December 07, 2017 14:16
To: linux-ker...@vger.kernel.org
Cc: linux...@kvack.org; linux-fsde...@vger.kernel.org
Hi folks,
Any comment on this one?
Thanks,
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by TIPC at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Jon Maloy
Hi folks,
Any comment on this one?
Thanks,
Yang
On 11/17/17 5:48 PM, Yang Shi wrote:
It looks the email address of Pravin in MAINTAINERS file is obsolete,
sent to the right address.
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h
Hi folks,
Any comment on this one?
Thanks,
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by caif at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Dmitry
Hi folks,
Any comment on this one?
Thanks,
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by vfs at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Alexander
The email to Herbert is returned, resent it.
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by crypto at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Herbert
It looks the email address of Pravin in MAINTAINERS file is obsolete,
sent to the right address.
Yang
On 11/17/17 3:02 PM, Yang Shi wrote:
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by openvswitch at all.
So, remove
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by crypto at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Herbert Xu
Cc: "David S. Miller"
Cc: linux-cry...@vger.kernel.org
---
crypto/ablk_he
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by pstore at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Kees Cook
Cc: Anton Vorontsov
Cc: Colin Cross
Cc: Tony Luck
---
fs/pstore/platform.c | 1 -
1
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by btrfs at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Chris Mason
Cc: Josef Bacik
Cc: David Sterba
Cc: linux-bt...@vger.kernel.org
---
fs/btrfs
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by openvswitch at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Pravin Shelar
Cc: "David S. Miller"
Cc: d...@openvswitch.org
---
net/openvsw
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by vfs at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Alexander Viro
---
fs/dcache.c | 1 -
fs/file_table.c | 1 -
2 files changed, 2 deletions
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by TIPC at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Jon Maloy
Cc: Ying Xue
Cc: "David S. Miller"
---
net/tipc/core.h | 1 -
1 file changed,
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by caif at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Dmitry Tarnyagin
Cc: "David S. Miller"
---
net/caif/cfpkt_skbuff.c | 1 -
net/caif/
Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by kmemleak at all.
So, remove the unused hardirq.h.
Signed-off-by: Yang Shi
Cc: Michal Hocko
Cc: Andrew Morton
Cc: Matthew Wilcox
---
mm/kmemleak.c | 1 -
1 file changed, 1
temp
registers which not need to be saved/restored during function call. So, replace
R23 and R24 to R10 and R11, and remove tmp_used flag to save 2 instructions for
some jited BPF program.
CC: Daniel Borkmann
Acked-by: Zi Shen Lim
Signed-off-by: Yang Shi
---
Changelog v1 --> v2:
* Updated st
temp
registers which not need to be saved/restored during function call. So, replace
R23 and R24 to R10 and R11, and remove tmp_used flag.
CC: Zi Shen Lim
CC: Daniel Borkmann
Signed-off-by: Yang Shi
---
Apply on top of Daniel's blinding constant patchset.
arch/arm64/net/bpf_jit_comp.c
aarch64 doesn't have native store immediate instruction, such operation
has to be implemented by the below instruction sequence:
Load immediate to register
Store register
Signed-off-by: Yang Shi
CC: Zi Shen Lim
CC: Xi Wang
---
Thsi patch might be buried by the storm of xadd discu
n call stack
| |
+-+
low
CC: Zi Shen Lim
CC: Xi Wang
Signed-off-by: Yang Shi
---
V4 --> V3:
* Save/restore x25 and x26
V3 --> V2:
* Make FP point to FP'
* Fix a compile warning
arch/arm64/net/bpf_jit_comp.c | 44 ++-
1 file changed, 39 ins
n call stack
| |
+-+
low
CC: Zi Shen Lim
CC: Xi Wang
Signed-off-by: Yang Shi
---
V3 --> V2:
* Make FP point to FP'
* Fix a compile warning
arch/arm64/net/bpf_jit_comp.c | 37
ysreg.h is useless for BPF samples, just exclude it from Makefile via
defining __ASM_SYSREG_H.
Signed-off-by: Yang Shi
---
samples/bpf/Makefile | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 79b4596..edd638b 100644
---
Changelog in V2:
Split to two patches according to the suggestion from Zi Shen Lim
Show A64_FP in stack layout diagram
Correct "+64" to "-64"
Yang Shi (2):
arm64: bpf: fix JIT frame pointer setup
arm64: bpf: make BPF prologue and epilogue align with ARM64 AA
BPF fp should point to the top of the BPF prog stack. The original
implementation made it point to the bottom incorrectly.
Move A64_SP to fp before reserve BPF prog stack space.
CC: Zi Shen Lim
CC: Xi Wang
Signed-off-by: Yang Shi
---
arch/arm64/net/bpf_jit_comp.c | 6 +++---
1 file changed, 3
all stack
| |
+-+
low
CC: Zi Shen Lim
CC: Xi Wang
Signed-off-by: Yang Shi
---
arch/arm64/net/bpf_jit_comp.c | 34 +-
1 file changed, 29 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_com
aarch64 doesn't have native store immediate instruction, such operation
has to be implemented by the below instruction sequence:
Load immediate to register
Store register
Signed-off-by: Yang Shi
CC: Zi Shen Lim
CC: Xi Wang
---
arch/arm64/net/bpf_jit_comp.c | 20 +++-
1
aarch64 doesn't have native support for XADD instruction, implement it by
the below instruction sequence:
Load (dst + off) to a register
Add src to it
Store it back to (dst + off)
Signed-off-by: Yang Shi
CC: Zi Shen Lim
CC: Xi Wang
---
arch/arm64/net/bpf_jit_comp.c
atches are applied after my BPF JIT stack fix [1].
[1] https://patches.linaro.org/56268/
Yang Shi (2):
arm64: bpf: add 'store immediate' instruction
arm64: bpf: add BPF XADD instruction
arch/arm64/net/bpf_jit_comp.c | 39 ++-
1 file changed,
aarch64 and s390x support eBPF JIT too, correct document to reflect this and
avoid any confusion.
Signed-off-by: Yang Shi
---
Documentation/networking/filter.txt | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Documentation/networking/filter.txt
b/Documentation
A64_SP => +-+
| |
| ... | Function call stack
| |
+-+
low
Signed-off-by: Yang Shi
CC: Zi Shen Lim
CC: Xi Wang
---
arch/arm64/net/bpf_jit_co
A64_SP => +-+
| |
| ... | Function call stack
| |
+-+
low
Signed-off-by: Yang Shi
CC: Zi Shen Lim
CC: Xi Wang
---
arch/arm64/net/bpf_jit_co
When running "mod X" operation, if X is 0 the filter has to be halt.
Add new test cases to cover A = A mod X if X is 0, and A = A mod 1.
CC: Xi Wang
CC: Zi Shen Lim
Signed-off-by: Yang Shi
---
lib/test_bpf.c | 30 ++
1 file changed, 30 insertions(+)
di
8083
7560: 008751e0 8000 0001 124e2d1d 00107b77
Convert hashtab lock to raw lock to avoid such warning.
Signed-off-by: Yang Shi
---
This patch is applicable to mainline kernel too.
kernel/bpf/hashtab.c | 14 +++---
1 file changed, 7
Define aarch64 specific registers for building bpf samples correctly.
Signed-off-by: Yang Shi
---
samples/bpf/bpf_helpers.h | 12
1 file changed, 12 insertions(+)
diff --git a/samples/bpf/bpf_helpers.h b/samples/bpf/bpf_helpers.h
index 3a44d3a..af44e56 100644
--- a/samples/bpf
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