Re: [PATCH 2/4] Drivers: hv: Support the newly introduced KVP messages in the driver

On Sun, Mar 11, 2012 at 04:56:06PM +0000, KY Srinivasan wrote:

quoted

Probably that's not enough to make a difference and we'd need to
introduce a new function.

Btw I don't know if utf16s_to_utf8s() counts the NUL char or not.
It feels like maybe we could end up with ->value_size equal to
HV_KVP_EXCHANGE_MAX_VALUE_SIZE + 1.

The MAX value is set to accommodate the maximum string that will ever
be handled including the string terminator. The function utf16s_to_utf8s()
returns the converted string length but the returned length does not 
include the string terminator (like strlen), hence the "+1".

sprintf() and friends copy the NUL terminator but utf16s_to_utf8s()
doesn't so the code isn't right and it does seem like maybe we could
end up with a ->value_size equal to HV_KVP_EXCHANGE_MAX_VALUE_SIZE +
1.

regards,
dan carpenter