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uuid: Make qemu_uuid_bswap() take and return a QemuUUID

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Currently qemu_uuid_bswap() takes a pointer to the QemuUUID to
be byte-swapped. This means it can't be used when the UUID
to be swapped is in a packed member of a struct. It's also
out of line with the general bswap*() functions we provide
in bswap.h, which take the value to be swapped and return it.

Make qemu_uuid_bswap() take a QemuUUID and return the swapped version.

This fixes some clang warnings about taking the address of
a packed struct member in block/vdi.c.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Peter Maydell 2018-12-10 11:26:49 +00:00 • committed by Kevin Wolf
parent ac928b8ee8
commit 1324f06384
5 changed files with 17 additions and 19 deletions
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2
include/qemu/uuid.h
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@ -56,6 +56,6 @@ char *qemu_uuid_unparse_strdup(const QemuUUID *uuid);
int qemu_uuid_parse(const char *str, QemuUUID *uuid);
void qemu_uuid_bswap(QemuUUID *uuid);
QemuUUID qemu_uuid_bswap(QemuUUID uuid);
#endif