error: implicit declaration of function ‘blk_queue_dma_alignment’

[konsolebox]

rts51x_scsi.c:1947:9: error: implicit declaration of function ‘blk_queue_dma_alignment’; did you mean ‘queue_dma_alignment’? [-Werror=implicit-function-declaration]
 1947 |         blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
      |         ^~~~~~~~~~~~~~~~~~~~~~~
      |         queue_dma_alignment

It's likely caused by this update: https://github.com/torvalds/linux/commit/ec84ca4025c0b90c6b7173a230f78ec00cad44f5

My current workaround is to disable the line if the kernel version is 6.10 or newer, but I'm not confident it's the right thing to do.

diff --git a/rts51x_scsi.c b/rts51x_scsi.c
index aadcc26..302adb9 100644
--- a/rts51x_scsi.c
+++ b/rts51x_scsi.c
@@ -1944,7 +1944,9 @@ int slave_configure(struct scsi_device *sdev)
 	 * mask.  Guaranteeing proper alignment of the first buffer will
 	 * have the desired effect because, except at the beginning and
 	 * the end, scatter-gather buffers follow page boundaries. */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,10,0)
 	blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
+#endif
 
 	/* Set the SCSI level to at least 2.  We'll leave it at 3 if that's
 	 * what is originally reported.  We need this to avoid confusing

[konsolebox]

Disabling the line in 6.10+ is not the right way to do it unfortunately. The limit does not get set to 511 by default.