On Thu, May 15, 2025 at 10:31:00PM -0700, Eric Biggers wrote:

+static inline __le32 nvme_tcp_hdgst(const void *pdu, size_t len)
+{
+	return cpu_to_le32(~crc32c(NVME_TCP_CRC_SEED, pdu, len));
 }

This drops the unaligned handling.  Now in the NVMe protocol it will
always be properly aligned, but my TCP-foo is not good enough to
remember if the networking code will also guarantee 32-bit alignment
for the start of the packet?

Otherwise this looks great:

Reviewed-by: Christoph Hellwig <hch@lst.de>