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Message-Id: <20220720183449.2070222-2-jacob.e.keller@intel.com> Date: Wed, 20 Jul 2022 11:34:47 -0700 From: Jacob Keller <jacob.e.keller@...el.com> To: netdev@...r.kernel.org Cc: Jakub Kicinski <kuba@...nel.org>, Jacob Keller <jacob.e.keller@...el.com> Subject: [iproute2-next PATCH 1/3] update <linux/devlink.h> UAPI header Signed-off-by: Jacob Keller <jacob.e.keller@...el.com> --- include/uapi/linux/devlink.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h index da0f1ba8f7a0..90f6cf97d308 100644 --- a/include/uapi/linux/devlink.h +++ b/include/uapi/linux/devlink.h @@ -576,6 +576,14 @@ enum devlink_attr { DEVLINK_ATTR_LINECARD_TYPE, /* string */ DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES, /* nested */ + /* Before adding this attribute to a command, user space should check + * the policy dump and verify the kernel recognizes the attribute. + * Otherwise older kernels which do not recognize the attribute may + * silently accept the unknown attribute while not actually performing + * a dry run. + */ + DEVLINK_ATTR_DRY_RUN, /* flag */ + /* add new attributes above here, update the policy in devlink.c */ __DEVLINK_ATTR_MAX, -- 2.36.1
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