hw/xen/interface: Remove pre-C99 checks
We mandate a compiler supporting C99 since 2019-01-17 in commit 7be41675f7c ("configure: Force the C standard to gnu99"), thus supporting flexible array members [*]. Remove what is now dead code. [*] https://www.gnu.org/software/c-intro-and-ref/manual/html_node/Flexible-Array-Fields.html Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20260615091308.4458-2-philmd@oss.qualcomm.com>
Philippe Mathieu-Daudé committed
Jun 12, 2026 at 15:00 UTC
059513675417c58f94e77a5d0941212a83dff071
4 files changed
+3
-20
include/hw/xen/interface/physdev.h
+1
-1
@@ -283,7 +283,7 @@ struct physdev_pci_device_add {
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* First element ([0]) is PXM domain associated with the device (if
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* XEN_PCI_DEV_PXM is set)
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*/
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- uint32_t optarr[XEN_FLEX_ARRAY_DIM];
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+ uint32_t optarr[];
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};
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typedef struct physdev_pci_device_add physdev_pci_device_add_t;
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DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_add_t);
include/hw/xen/interface/version.h
+2
-3
@@ -77,9 +77,8 @@ typedef char xen_commandline_t[1024];
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*/
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#define XENVER_build_id 10
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struct xen_build_id {
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- uint32_t len; /* IN: size of buf[]. */
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- unsigned char buf[XEN_FLEX_ARRAY_DIM];
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- /* OUT: Variable length buffer with build_id. */
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+ uint32_t len; /* IN: size of buf[]. */
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+ unsigned char buf[]; /* OUT: Variable length buffer with build_id. */
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};
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typedef struct xen_build_id xen_build_id_t;
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include/hw/xen/interface/xen-compat.h
-2
@@ -24,6 +24,4 @@
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#error "These header files do not support the requested interface version."
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#endif
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-#define COMPAT_FLEX_ARRAY_DIM XEN_FLEX_ARRAY_DIM
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-
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#endif /* __XEN_PUBLIC_XEN_COMPAT_H__ */
include/hw/xen/interface/xen.h
-14
@@ -36,15 +36,6 @@ DEFINE_XEN_GUEST_HANDLE(uint64_t);
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DEFINE_XEN_GUEST_HANDLE(xen_pfn_t);
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DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
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-/* Define a variable length array (depends on compiler). */
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-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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-#define XEN_FLEX_ARRAY_DIM
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-#elif defined(__GNUC__)
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-#define XEN_FLEX_ARRAY_DIM 0
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-#else
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-#define XEN_FLEX_ARRAY_DIM 1 /* variable size */
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-#endif
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-
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/* Turn a plain number into a C unsigned (long (long)) constant. */
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#define __xen_mk_uint(x) x ## U
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#define __xen_mk_ulong(x) x ## UL
@@ -986,13 +977,8 @@ typedef struct {
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((d) >> 8) & 0xFF, ((d) >> 0) & 0xFF, \
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e1, e2, e3, e4, e5, e6}}
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-#if defined(__STDC_VERSION__) ? __STDC_VERSION__ >= 199901L : defined(__GNUC__)
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#define XEN_DEFINE_UUID(a, b, c, d, e1, e2, e3, e4, e5, e6) \
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((xen_uuid_t)XEN_DEFINE_UUID_(a, b, c, d, e1, e2, e3, e4, e5, e6))
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-#else
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-#define XEN_DEFINE_UUID(a, b, c, d, e1, e2, e3, e4, e5, e6) \
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- XEN_DEFINE_UUID_(a, b, c, d, e1, e2, e3, e4, e5, e6)
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-#endif /* __STDC_VERSION__ / __GNUC__ */
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#endif /* !__ASSEMBLY__ */
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