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iommufd/iommufd_private.h: Avoid -Wflex-array-member-not-at-end warning

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-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Move the conflicting declaration to the end of the corresponding
structure. Notice that struct iommufd_vevent is a flexible
structure, this is a structure that contains a flexible-array
member.

Fix the following warning:

drivers/iommu/iommufd/iommufd_private.h:621:31: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Link: https://patch.msgid.link/r/aRHOAwpATIE0oajj@kspp
Signed-off-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Fixes: e36ba5ab80 ("iommufd: Add IOMMUFD_OBJ_VEVENTQ and IOMMUFD_CMD_VEVENTQ_ALLOC")
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Gustavo A. R. Silva 2025-11-10 20:35:31 +09:00 committed by Jason Gunthorpe
parent ac84ff4533
commit b07bf253ef
1 changed files with 3 additions and 1 deletions
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4
drivers/iommu/iommufd/iommufd_private.h
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@ -614,7 +614,6 @@ struct iommufd_veventq {
struct iommufd_eventq common;
struct iommufd_viommu *viommu;
struct list_head node; /* for iommufd_viommu::veventqs */
struct iommufd_vevent lost_events_header;
enum iommu_veventq_type type;
unsigned int depth;
@ -622,6 +621,9 @@ struct iommufd_veventq {
/* Use common.lock for protection */
u32 num_events;
u32 sequence;
/* Must be last as it ends in a flexible-array member. */
struct iommufd_vevent lost_events_header;
};
static inline struct iommufd_veventq *