[RFC PATCH] virtio-rpmb: fix spec land mine in max_[wr|rd]_cnt

[Alex BennÃe <alex.bennee@linaro.org>]

Even if 0 meant no limit we are still limited by the field size of the
request. That said for a maximum sized partition (* 80 128 1024) you
could only actually request 40960 blocks before running out of device.
Perhaps it would be better to mark 0 as invalid?

Cc: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Cc: Harald Mommer <hmo@opensynergy.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Alex BennÃe <alex.bennee@linaro.org>
---
 device-types/rpmb/description.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/device-types/rpmb/description.tex b/device-types/rpmb/description.tex
index 1dae3fd..2ce8a5b 100644
--- a/device-types/rpmb/description.tex
+++ b/device-types/rpmb/description.tex
@@ -37,7 +37,7 @@ \subsection{Device configuration layout}\label{sec:Device Types / RPMB Device /
    The values MUST range between 0x00 and 0x80 inclusive.
 \item[\field{max_wr_cnt and max_rd_cnt}] are the maximum numbers of RPMB
    block count (256B) that can be performed to device in one request. 0 implies
-   no limitation.
+   no limitation other than the maximum value you can store in \field{block_count} (65535).
 \end{description}
 
 \devicenormative{\subsection}{Device Initialization}{Device Types / RPMB Device / Device Initialization}
-- 
2.39.2