diff mbox series

[net,06/10] ice: disallow DPLL_PIN_STATE_SELECTABLE for dpll output pins

Message ID 20240930223601.3137464-7-anthony.l.nguyen@intel.com (mailing list archive)
State Accepted
Commit afe6e30e7701979f536f8fbf6fdef7212441f61a
Delegated to: Netdev Maintainers
Headers show
Series Intel Wired LAN Driver Updates 2024-09-30 (ice, idpf) | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn fail Errors and warnings before: 12 this patch: 12
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Tony Nguyen Sept. 30, 2024, 10:35 p.m. UTC 
From: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>

Currently the user may request DPLL_PIN_STATE_SELECTABLE for an output
pin, and this would actually set the DISCONNECTED state instead.

It doesn't make any sense. SELECTABLE is valid only in case of input pins
(on AUTOMATIC type dpll), where dpll itself would select best valid input.
For the output pin only CONNECTED/DISCONNECTED are expected.

Fixes: d7999f5ea64b ("ice: implement dpll interface to control cgu")
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_dpll.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.c b/drivers/net/ethernet/intel/ice/ice_dpll.c
index 8b6dc4d54fdc..74c0e7319a4c 100644
--- a/drivers/net/ethernet/intel/ice/ice_dpll.c
+++ b/drivers/net/ethernet/intel/ice/ice_dpll.c
@@ -656,6 +656,8 @@  ice_dpll_output_state_set(const struct dpll_pin *pin, void *pin_priv,
 	struct ice_dpll_pin *p = pin_priv;
 	struct ice_dpll *d = dpll_priv;
 
+	if (state == DPLL_PIN_STATE_SELECTABLE)
+		return -EINVAL;
 	if (!enable && p->state[d->dpll_idx] == DPLL_PIN_STATE_DISCONNECTED)
 		return 0;