Re: [alsa-devel] [PATCH 4/6] usb: audio: Fix variable length field to be variable.

Jorge Sanjuan wrote:

Make bmaControls be a pointer insted of a fixed size array so it can have a variable length.

/* bmaControls is actually u32, * but u8 is needed for the hybrid parser */

• __u8 bmaControls[0]; /* variable length */

• __u8 bmaControls[]; /* variable length */ /* wFeatureDescrStr omitted */

} __attribute__((packed));

This is not a pointer but a flexible array member. And in theory, it does not change anything: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html

Regards, Clemens