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| Filename | Latest commit message | Latest commit date |
|---|---|---|
f3b55abb6d
- bpf_fill_ld_abs_vlan_push_pop:
Prevent zext happens inside PUSH_CNT loop. This could happen because
of BPF_LD_ABS (32-bit def) + BPF_JMP (64-bit use), or BPF_LD_ABS +
EXIT (64-bit use of R0). So, change BPF_JMP to BPF_JMP32 and redefine
R0 at exit path to cut off the data-flow from inside the loop.
- bpf_fill_jump_around_ld_abs:
Jump range is limited to 16 bit. every ld_abs is replaced by 6 insns,
but on arches like arm, ppc etc, there will be one BPF_ZEXT inserted
to extend the error value of the inlined ld_abs sequence which then
contains 7 insns. so, set the dividend to 7 so the testcase could
work on all arches.
- bpf_fill_scale1/bpf_fill_scale2:
Both contains ~1M BPF_ALU32_IMM which will trigger ~1M insn patcher
call because of hi32 randomization later when BPF_F_TEST_RND_HI32 is
set for bpf selftests. Insn patcher is not efficient that 1M call to
it will hang computer. So , change to BPF_ALU64_IMM to avoid hi32
randomization.
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.