On Sat, 9 Dec 2023 16:09:40 -0800 Paul M Stillwell Jr wrote:

This brings up the question of whether I should use seq_printf() for all 
the other _read fucntions. It feels like a lot of extra code to do it 
for the other _read functions because they output so little info and we 
control the output so it seems to be overkill to use seq_printf() for 
those. What do you think?

My rule of thumb would be to use seq_printf() if you have to allocate 
a buffer on the heap for the output. If you can output directly to user
space or the output is small enough to fit in an on-stack buffer - no
need for seq_printf(). But YMMV.