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This reverts commit cadc4e1a2b4d20d0cc0e81f2c6ba0588775e54e5.
Commit cadc4e1a2b4d ("sh: Handle calling csum_partial with misaligned
data") causes bad checksum calculations on unaligned data. Reverting
it fixes the problem.
# Subtest: checksum
# module: checksum_kunit
1..5
# test_csum_fixed_random_inputs: ASSERTION FAILED at lib/checksum_kunit.c:500
Expected ( u64)result == ( u64)expec, but
( u64)result == 53378 (0xd082)
( u64)expec == 33488 (0x82d0)
# test_csum_fixed_random_inputs: pass:0 fail:1 skip:0 total:1
not ok 1 test_csum_fixed_random_inputs
# test_csum_all_carry_inputs: ASSERTION FAILED at lib/checksum_kunit.c:525
Expected ( u64)result == ( u64)expec, but
( u64)result == 65281 (0xff01)
( u64)expec == 65280 (0xff00)
# test_csum_all_carry_inputs: pass:0 fail:1 skip:0 total:1
not ok 2 test_csum_all_carry_inputs
# test_csum_no_carry_inputs: ASSERTION FAILED at lib/checksum_kunit.c:573
Expected ( u64)result == ( u64)expec, but
( u64)result == 65535 (0xffff)
( u64)expec == 65534 (0xfffe)
# test_csum_no_carry_inputs: pass:0 fail:1 skip:0 total:1
not ok 3 test_csum_no_carry_inputs
# test_ip_fast_csum: pass:1 fail:0 skip:0 total:1
ok 4 test_ip_fast_csum
# test_csum_ipv6_magic: pass:1 fail:0 skip:0 total:1
ok 5 test_csum_ipv6_magic
# checksum: pass:2 fail:3 skip:0 total:5
# Totals: pass:2 fail:3 skip:0 total:5
not ok 22 checksum
Fixes: cadc4e1a2b4d ("sh: Handle calling csum_partial with misaligned data")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20240324231804.841099-1-linux@roeck-us.net
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
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... and get rid of zeroing destination on error there.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Update license to use SPDX-License-Identifier instead of verbose license
text.
Link: http://lkml.kernel.org/r/871s6wcswb.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In rare circumstances csum_partial() can be called with data which is
not 16 or 32 bit aligned. This is been observed with RPC calls for NFS
file systems for example. Add support for handling this without resorting
to the misaligned fixup code (which is why this hasn't been seen as a
problem). This mimics the i386 version, which has had this support for
some time.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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There's a bug in the Hitachi SuperH csum_partial_copy_generic()
implementation. If the supplied length is 1 (and several alignment
conditions are met), the function immediately branches to label 4.
However, the assembly at label 4 expects the length to be stored in
register r2. Since this has not occurred, subsequent behavior is
undefined.
This can cause bad payload checksums in TCP connections.
I've fixed the problem by initializing register r2 prior to the branch
instruction.
Signed-off-by: Ollie Wild <aaw@rincewind.tv>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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