fw_env: make flash_io() take buffer as an argument
It's usually easier to understand code & follow it if all arguments are
passed explicitly. Many coding styles also discourage using global
variables.
Behaviour of flash_io() was a bit unintuitive as it was writing to a
buffer referenced in a global struct. That required developers to
remember how it works and sometimes required hacking "environment"
global struct variable to read data into a proper buffer.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
1 file changed