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Re: [RFC PATCH 00/27] vDPA software assisted live migration


From: no-reply
Subject: Re: [RFC PATCH 00/27] vDPA software assisted live migration
Date: Fri, 20 Nov 2020 11:30:54 -0800 (PST)

Patchew URL: 
20201120185105.279030-1-eperezma@redhat.com/">https://patchew.org/QEMU/20201120185105.279030-1-eperezma@redhat.com/



Hi,

This series seems to have some coding style problems. See output below for
more information:

Type: series
Message-id: 20201120185105.279030-1-eperezma@redhat.com
Subject: [RFC PATCH 00/27] vDPA software assisted live migration

=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback base..
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
 - [tag update]      patchew/20201117173635.29101-1-alex.bennee@linaro.org -> 
patchew/20201117173635.29101-1-alex.bennee@linaro.org
 * [new tag]         patchew/20201120185105.279030-1-eperezma@redhat.com -> 
patchew/20201120185105.279030-1-eperezma@redhat.com
Switched to a new branch 'test'
af2fe22 vhost: forbid vhost devices logging
405925c vhost: Add vhost_hdev_can_sw_lm
7f2955b vhost: Do not commit vhost used idx on vhost_virtqueue_stop
b68d3d5 vhost: iommu changes
74f282a vhost: unmap qemu's shadow virtqueues on sw live migration
c999e86 vhost: Add vhost_virtqueue_memory_map
6e5f219 vhost: Add vhost_virtqueue_memory_unmap
d5054c8 vhost: Return used buffers
806db46 vhost: add vhost_vring_get_buf_rcu
b6b8168 vhost: add vhost_vring_poll_rcu
ca44882 vhost: add vhost_vring_set_notification_rcu
3183f62 virtio: Expose virtqueue_alloc_element
4ead0ac vhost: Do not invalidate signalled used
ceb76a4 virtio: Remove virtio_queue_get_used_notify_split
6aacdfe vhost: Send buffers to device
9fcc98d virtio: Add virtio_queue_full
41da0f8 virtio: const-ify all virtio_tswap* functions
a3c92f1 vhost: Allocate shadow vring
b40b3f7 vhost: Route host->guest notification through qemu
92ea117 vhost: Add a flag for software assisted Live Migration
ace8c10 vhost: Route guest->host notification through qemu
6be11a6 virtio: Add virtio_queue_get_used_notify_split
47d4485 vhost: Add hdev->dev.sw_lm_vq_handler
7dbc8e5 vhost: add vhost_kernel_set_vring_enable
4e51c5c vhost: Move log resize/put to vhost_dev_set_log
b964abc vhost: Add device callback in vhost_migration_log
264504e vhost: Add vhost_dev_can_log

=== OUTPUT BEGIN ===
1/27 Checking commit 264504ee0018 (vhost: Add vhost_dev_can_log)
2/27 Checking commit b964abc315bd (vhost: Add device callback in 
vhost_migration_log)
3/27 Checking commit 4e51c5cec56d (vhost: Move log resize/put to 
vhost_dev_set_log)
4/27 Checking commit 7dbc8e5c64c3 (vhost: add vhost_kernel_set_vring_enable)
5/27 Checking commit 47d4485458d1 (vhost: Add hdev->dev.sw_lm_vq_handler)
6/27 Checking commit 6be11a63e3b4 (virtio: Add 
virtio_queue_get_used_notify_split)
7/27 Checking commit ace8c1034f83 (vhost: Route guest->host notification 
through qemu)
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#24: 
new file mode 100644

total: 0 errors, 1 warnings, 245 lines checked

Patch 7/27 has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
8/27 Checking commit 92ea11700e32 (vhost: Add a flag for software assisted Live 
Migration)
WARNING: Block comments use a leading /* on a separate line
#46: FILE: hw/virtio/vhost.c:1581:
+        /* We've been called after migration is completed, so no need to

WARNING: Block comments use * on subsequent lines
#47: FILE: hw/virtio/vhost.c:1582:
+        /* We've been called after migration is completed, so no need to
+           disable it again

total: 0 errors, 2 warnings, 45 lines checked

Patch 8/27 has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
9/27 Checking commit b40b3f79355c (vhost: Route host->guest notification 
through qemu)
10/27 Checking commit a3c92f15b554 (vhost: Allocate shadow vring)
11/27 Checking commit 41da0f8e02b2 (virtio: const-ify all virtio_tswap* 
functions)
12/27 Checking commit 9fcc98da9cd9 (virtio: Add virtio_queue_full)
13/27 Checking commit 6aacdfe0e0ba (vhost: Send buffers to device)
ERROR: memory barrier without comment
#50: FILE: hw/virtio/vhost-sw-lm-ring.c:45:
+    smp_rmb();

WARNING: Block comments use a leading /* on a separate line
#98: FILE: hw/virtio/vhost-sw-lm-ring.c:93:
+/* virtqueue_add:

WARNING: Block comments use a leading /* on a separate line
#125: FILE: hw/virtio/vhost-sw-lm-ring.c:120:
+    /* Put entry in available array (but don't update avail->idx until they

WARNING: Block comments use a trailing */ on a separate line
#126: FILE: hw/virtio/vhost-sw-lm-ring.c:121:
+     * do sync). */

ERROR: g_free(NULL) is safe this check is probably not required
#147: FILE: hw/virtio/vhost-sw-lm-ring.c:142:
+    if (vq->ring_id_maps[host_head]) {
+        g_free(vq->ring_id_maps[host_head]);

ERROR: braces {} are necessary for all arms of this statement
#185: FILE: hw/virtio/vhost-sw-lm-ring.c:181:
+    for (i = 0; i < num - 1; i++)
[...]

ERROR: code indent should never use tabs
#207: FILE: hw/virtio/vhost-sw-lm-ring.h:23:
+^I                    struct vhost_vring_addr *addr);$

ERROR: space required before the open parenthesis '('
#247: FILE: hw/virtio/vhost.c:986:
+    } while(!virtio_queue_empty(vq));

total: 5 errors, 3 warnings, 275 lines checked

Patch 13/27 has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

14/27 Checking commit ceb76a4401b8 (virtio: Remove 
virtio_queue_get_used_notify_split)
15/27 Checking commit 4ead0ac8457f (vhost: Do not invalidate signalled used)
16/27 Checking commit 3183f62db3dc (virtio: Expose virtqueue_alloc_element)
17/27 Checking commit ca44882af152 (vhost: add vhost_vring_set_notification_rcu)
ERROR: memory barrier without comment
#45: FILE: hw/virtio/vhost-sw-lm-ring.c:83:
+    smp_mb();

total: 1 errors, 0 warnings, 45 lines checked

Patch 17/27 has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

18/27 Checking commit b6b8168b9fe7 (vhost: add vhost_vring_poll_rcu)
ERROR: memory barrier without comment
#37: FILE: hw/virtio/vhost-sw-lm-ring.c:98:
+    smp_rmb();

total: 1 errors, 0 warnings, 38 lines checked

Patch 18/27 has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

19/27 Checking commit 806db46e9194 (vhost: add vhost_vring_get_buf_rcu)
20/27 Checking commit d5054c8556bf (vhost: Return used buffers)
21/27 Checking commit 6e5f2192254a (vhost: Add vhost_virtqueue_memory_unmap)
22/27 Checking commit c999e86cf7f0 (vhost: Add vhost_virtqueue_memory_map)
23/27 Checking commit 74f282a80019 (vhost: unmap qemu's shadow virtqueues on sw 
live migration)
24/27 Checking commit b68d3d5fb839 (vhost: iommu changes)
25/27 Checking commit 7f2955b8e788 (vhost: Do not commit vhost used idx on 
vhost_virtqueue_stop)
WARNING: Block comments use a leading /* on a separate line
#40: FILE: hw/virtio/vhost.c:1442:
+        /* Connection to the backend is unusable, so let's sync internal

total: 0 errors, 1 warnings, 27 lines checked

Patch 25/27 has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
26/27 Checking commit 405925c6b54a (vhost: Add vhost_hdev_can_sw_lm)
27/27 Checking commit af2fe2219d39 (vhost: forbid vhost devices logging)
=== OUTPUT END ===

Test command exited with code: 1


The full log is available at
20201120185105.279030-1-eperezma@redhat.com/testing.checkpatch/?type=message">http://patchew.org/logs/20201120185105.279030-1-eperezma@redhat.com/testing.checkpatch/?type=message.
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