desc_inline_query(9)

💅 NAME 💅

okay so bestie, welcome to desc_inline_query(9) from the Kernel API Manual. This function is literally here to provide indications on which data items can be inlined and which shall be referenced in a shared descriptor. That’s the whole assignment, and it ate. 💖

🦋 SYNOPSIS 🦋

int desc_inline_query (unsigned int sd_base_len , unsigned int jd_len ,
       unsigned int *data_len , u32 *inl_mask , unsigned int count );

✨ ARGUMENTS ✨

here’s the tea on every single argument, no skips:

• sd_base_len — Shared descriptor base length - bytes consumed by the commands, excluding the data items to be inlined (or corresponding pointer if an item is not inlined). Each cnstr_* function that generates descriptors should have a define mentioning corresponding length.
• jd_len — Maximum length of the job descriptor(s) that will be used together with the shared descriptor.
• data_len — Array of lengths of the data items trying to be inlined.
• inl_mask — 32bit mask with bit x = 1 if data item x can be inlined, 0 otherwise.
• count — Number of data items (size of data_len array); must be <= 32.

🌈 RETURN 🌈

Return value check, bestie: 0 if data can be inlined / referenced, negative value if not. If it’s 0, check inl_mask for details. That’s it — no cap. 💅

👑 SEE ALSO 👑

go peek at these:

• Kernel file ./drivers/crypto/caam/desc_constr.h
• struct alginfo(9)
• append_proto_dkp(9)

source/version: ./drivers/crypto/caam · date: October 2026 🫶✨