tree 1603fea32a801e03fa8841a757e7ae52fcdc5407
parent 7a8b7573a49ee15ff4ae9cdce14fda74b62075a4
author Moshe Shemesh <moshe@nvidia.com> 1635662927 +0200
committer Stephen Hemminger <stephen@networkplumber.org> 1635867273 -0700

devlink: Fix cmd_dev_param_set() to check configuration mode

This patch is fixing a bug, when param set user command includes
configuration mode which is not supported, the tool may not respond
with error if the requested value is 0. In such case
cmd_dev_param_set_cb() won't find the requested configuration mode and
returns ctx->value as initialized (equal 0). Then cmd_dev_param_set()
may find that requested value equals current value and returns success.

Fixing the bug by adding a flag cmode_found which is set only if
cmd_dev_param_set_cb() finds the requested configuration mode.

Fixes: 13925ae9eb38 ("devlink: Add param command support")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>