From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: Eric Farman <farman@linux.ibm.com>,
Matthew Rosato <mjrosato@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Vineeth Vijayan <vneethv@linux.ibm.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
linux-hardening@vger.kernel.org
Subject: [PATCH 1/2][next] vfio/ccw: Replace one-element array with flexible-array member
Date: Mon, 22 May 2023 19:35:12 -0600 [thread overview]
Message-ID: <3c10549ebe1564eade68a2515bde233527376971.1684805398.git.gustavoars@kernel.org> (raw)
In-Reply-To: <cover.1684805398.git.gustavoars@kernel.org>
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct vfio_ccw_parent and refactor the the rest of the code
accordingly.
Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/297
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/s390/cio/vfio_ccw_drv.c | 3 ++-
drivers/s390/cio/vfio_ccw_private.h | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index ff538a086fc7..57906a9c6324 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -171,7 +171,8 @@ static int vfio_ccw_sch_probe(struct subchannel *sch)
return -ENODEV;
}
- parent = kzalloc(sizeof(*parent), GFP_KERNEL);
+ parent = kzalloc(sizeof(*parent) + sizeof(struct mdev_type *),
+ GFP_KERNEL);
if (!parent)
return -ENOMEM;
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
index b441ae6700fd..b62bbc5c6376 100644
--- a/drivers/s390/cio/vfio_ccw_private.h
+++ b/drivers/s390/cio/vfio_ccw_private.h
@@ -79,7 +79,7 @@ struct vfio_ccw_parent {
struct mdev_parent parent;
struct mdev_type mdev_type;
- struct mdev_type *mdev_types[1];
+ struct mdev_type *mdev_types[];
};
/**
--
2.34.1
next prev parent reply other threads:[~2023-05-23 1:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-23 1:34 [PATCH 0/2][next] vfio/ccw: Replace one-element array with flexible-array member Gustavo A. R. Silva
2023-05-23 1:35 ` Gustavo A. R. Silva [this message]
2023-05-23 16:33 ` [PATCH 1/2][next] " Eric Farman
2023-05-23 17:29 ` Kees Cook
2023-05-23 17:45 ` Christophe JAILLET
2023-05-23 17:47 ` Marion & Christophe JAILLET
2023-05-23 1:35 ` [PATCH 2/2][next] vfio/ccw: Use struct_size() helper Gustavo A. R. Silva
2023-05-23 16:33 ` Eric Farman
2023-05-23 17:30 ` Kees Cook
2023-05-23 16:36 ` [PATCH 0/2][next] vfio/ccw: Replace one-element array with flexible-array member Matthew Rosato
2023-05-23 18:58 ` Alexander Gordeev
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