[PATCH v3 06/23] linux/printk.h: use unique identifier for each struct _ddebug

Changes on x86-64 later in this series require that all struct _ddebug descriptors in a translation unit uses distinct identifiers. Realize that for pr_debug_ratelimited by generating such an identifier via __UNIQUE_ID and pass that to an extra level of macros. No functional change. Acked-by:

[PATCH v3 06/23] linux/printk.h: use unique identifier for each struct _ddebug

Changes on x86-64 later in this series require that all struct _ddebug descriptors in a translation unit uses distinct identifiers. Realize that for pr_debug_ratelimited by generating such an identifier via __UNIQUE_ID and pass that to an extra level of macros. No functional change. Acked-by: