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Filename Latest commit message Latest commit date
Bodo Stroesser f20dfec03b scsi: target: loopback: Fix READ with data and sensebytes
[ Upstream commit c68a56736c129f5dd1632856956f9c3e04bae200 ]

We use tcm_loop with tape emulations running on tcmu.

In case application reads a short tape block with a longer READ, or a long
tape block with a short READ, according to SCC spec data has to be
tranferred _and_ sensebytes with ILI set and information field containing
the residual count. Similar problem also exists when using fixed block
size in READ.

Up to now tcm_loop is not prepared to handle sensebytes if input data is
provided, as in tcm_loop_queue_data_in() it only sets SAM_STAT_GOOD and, if
necessary, the residual count.

To fix the bug, the same handling for sensebytes as present in
tcm_loop_queue_status() must be done in tcm_loop_queue_data_in() also.

After adding this handling, the two function now are nearly identical, so I
created a single function with two wrappers.

Link: https://lore.kernel.org/r/20200428182617.32726-1-bstroesser@ts.fujitsu.com
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
arch arm64: dts: msm8996: Fix CSI IRQ types 2020-06-24 17:50:25 +02:00
block iocost: don't let vrate run wild while there's no saturation signal 2020-06-22 09:31:06 +02:00
certs
crypto
Documentation dt-bindings: display: mediatek: control dpi pins mode to avoid leakage 2020-06-22 09:30:58 +02:00
drivers scsi: target: loopback: Fix READ with data and sensebytes 2020-06-24 17:50:25 +02:00
fs virtiofs: schedule blocking async replies in separate worker 2020-06-24 17:50:21 +02:00
include usb: gadget: core: sync interrupt before unbind the udc 2020-06-24 17:50:16 +02:00
init
ipc
kernel kernel/cpu_pm: Fix uninitted local in cpu_pm 2020-06-22 09:31:22 +02:00
lib kasan: stop tests being eliminated as dead code with FORTIFY_SOURCE 2020-06-22 09:31:12 +02:00
LICENSES
mm mm: call cond_resched() from deferred_init_memmap() 2020-06-22 09:31:14 +02:00
net bpf, sockhash: Fix memory leak when unlinking sockets in sock_hash_free 2020-06-24 17:50:19 +02:00
samples
scripts mksysmap: Fix the mismatch of '.L' symbols in System.map 2020-06-24 17:50:19 +02:00
security apparmor: fix nnp subset test for unconfined 2020-06-24 17:50:20 +02:00
sound ASoC: SOF: core: fix error return code in sof_probe_continue() 2020-06-24 17:50:25 +02:00
tools perf symbols: Fix kernel maps for kcore and eBPF 2020-06-22 09:31:27 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
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COPYING
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Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.48 2020-06-22 09:31:27 +02:00
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.