pldm_check_desc_tlv_len(9)

💅 pldm_check_desc_tlv_len(9) — from the Kernel API Manual, bestie ✨

okay so real talk, this one lives in the kernel API manual and it's called pldm_check_desc_tlv_len(9). she's a little length-checker and honestly? she ate. let's get into it 🎀

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✨ NAME ✨

pldm_check_desc_tlv_len — check that the length matches expectation 🦋

like literally, that's the whole personality. she checks lengths. that's it. that's the gig.

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🌸 SYNOPSIS 🌸

int pldm_check_desc_tlv_len (struct pldmfw_priv *data , u16 type , u16 size );

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💖 ARGUMENTS 💖

• data — pointer to the image details 👑 like, all the context she needs to do her thing.
• type — the descriptor type, iykyk 🧚
• size — the length straight out of the descriptor header, no cap 💅

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🌈 DESCRIPTION 🌈

so here's the vibe check: if the descriptor type is one of the documented descriptor types according to the standard, she goes ahead and verifies that the length you handed her actually matches. periodt. ✨

but if the type is not recognized, or if it's VENDOR_DEFINED? she just returns zero and moves on with her life 💀 no drama, no fuss, lowkey iconic.

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⭐ RETURN ⭐

• zero on success 🫶
• -EINVAL if the specified size of a standard TLV does not match the expected value defined for that TLV 😭 like it's giving mismatch, and she is not here for it.

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🔥 SEE ALSO 🔥

kernel file ./lib/pldmfw/pldmfw.c, plus the whole friend group:

• pldm_check_fw_space(9)
• pldm_move_fw_offset(9)
• pldm_parse_header(9)
• pldm_parse_desc_tlvs(9)
• pldm_parse_one_record(9)
• pldm_parse_records(9)
• pldm_parse_components(9)
• pldm_verify_header_crc(9)
• pldmfw_free_priv(9)
• pldm_parse_image(9)
• pldmfw_op_pci_match_record(9)
• pldm_find_matching_record(9)
• pldm_send_package_data(9)
• pldm_send_component_tables(9)
• pldm_flash_components(9)
• pldm_finalize_update(9)
• pldmfw_flash_image(9)

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ngl bestie, read them all. they're a package deal 💜

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and that's the whole page, mwah 💋 shoutout to ./lib/pldmfw, the October 2026 edition, and obviously pldm_check_desc_tlv_len(9) herself — main character energy only 🌟🎀🦋