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vfio/ccw: replace one-element array with flexible-array member

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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 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>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Link: https://lore.kernel.org/r/3c10549ebe1564eade68a2515bde233527376971.1684805398.git.gustavoars@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Gustavo A. R. Silva 2023-05-22 19:35:12 -06:00 committed by Alexander Gordeev
parent fbac266f09
commit 5dd4241964
2 changed files with 3 additions and 2 deletions
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3
drivers/s390/cio/vfio_ccw_drv.c
View File

@ -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;

2
drivers/s390/cio/vfio_ccw_private.h
View File

@ -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[];
};
/**