| Message ID | 20230920180745.1607563-3-aleksander.lobakin@intel.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net/intel: fix link-time undefined reference errors | expand |
On 20/09/2023 19:07, Alexander Lobakin wrote: > DPLL code in ice unconditionally calls several PTP functions which are > only built when CONFIG_PTP_1588_CLOCK is set. This throws a good bunch > of link errors: > > ERROR: modpost: "ice_cgu_get_pin_name" > [drivers/net/ethernet/intel/ice/ice.ko] undefined! > ERROR: modpost: "ice_get_cgu_state" > [drivers/net/ethernet/intel/ice/ice.ko] undefined! > OR: modpost: "ice_is_cgu_present" > [drivers/net/ethernet/intel/ice/ice.ko] undefined! > ERROR: modpost: "ice_get_cgu_rclk_pin_info" > [drivers/net/ethernet/intel/ice/ice.ko] undefined! > ERROR: modpost: "ice_cgu_get_pin_type" > [drivers/net/ethernet/intel/ice/ice.ko] undefined! > ERROR: modpost: "ice_cgu_get_pin_freq_supp" > [drivers/net/ethernet/intel/ice/ice.ko] undefined! > > ice_dpll_{,de}init() can be only called at runtime when the > corresponding feature flags are set, which is not the case when PTP > support is not compiled. However, the linker has no clue about this. > Compile DPLL code only when CONFIG_PTP_1588_CLOCK is enabled and guard > the mentioned init/deinit function calls, so that ice_dpll.o is only > referred when it gets compiled. > > Note that ideally ice_is_feature_supported() needs to check for > compile-time flags first to be able to handle this without any > additional call guards, and we may want to do that in the future. > There is another fix under review [1], which came from Jacob. It converts the code a bit more, and will create conflicts. I would suggest to drop this patch until another series is fully reviewed. [1] https://lore.kernel.org/netdev/20230921000633.1238097-1-jacob.e.keller@intel.com/
From: Vadim Fedorenko <vadim.fedorenko@linux.dev> Date: Fri, 22 Sep 2023 00:58:04 +0100 > On 20/09/2023 19:07, Alexander Lobakin wrote: >> DPLL code in ice unconditionally calls several PTP functions which are >> only built when CONFIG_PTP_1588_CLOCK is set. This throws a good bunch >> of link errors: >> >> ERROR: modpost: "ice_cgu_get_pin_name" >> [drivers/net/ethernet/intel/ice/ice.ko] undefined! >> ERROR: modpost: "ice_get_cgu_state" >> [drivers/net/ethernet/intel/ice/ice.ko] undefined! >> OR: modpost: "ice_is_cgu_present" >> [drivers/net/ethernet/intel/ice/ice.ko] undefined! >> ERROR: modpost: "ice_get_cgu_rclk_pin_info" >> [drivers/net/ethernet/intel/ice/ice.ko] undefined! >> ERROR: modpost: "ice_cgu_get_pin_type" >> [drivers/net/ethernet/intel/ice/ice.ko] undefined! >> ERROR: modpost: "ice_cgu_get_pin_freq_supp" >> [drivers/net/ethernet/intel/ice/ice.ko] undefined! >> >> ice_dpll_{,de}init() can be only called at runtime when the >> corresponding feature flags are set, which is not the case when PTP >> support is not compiled. However, the linker has no clue about this. >> Compile DPLL code only when CONFIG_PTP_1588_CLOCK is enabled and guard >> the mentioned init/deinit function calls, so that ice_dpll.o is only >> referred when it gets compiled. >> >> Note that ideally ice_is_feature_supported() needs to check for >> compile-time flags first to be able to handle this without any >> additional call guards, and we may want to do that in the future. >> > > There is another fix under review [1], which came from Jacob. > It converts the code a bit more, and will create conflicts. > I would suggest to drop this patch until another series is fully > reviewed. I know, I already explained earlier in this topic that I sent the IDPF fix separately and that series can be dropped. > > [1] > https://lore.kernel.org/netdev/20230921000633.1238097-1-jacob.e.keller@intel.com/ Thanks, Olek
diff --git a/drivers/net/ethernet/intel/ice/Makefile b/drivers/net/ethernet/intel/ice/Makefile index 00806ddf5bf0..16f96d5210d8 100644 --- a/drivers/net/ethernet/intel/ice/Makefile +++ b/drivers/net/ethernet/intel/ice/Makefile @@ -34,8 +34,7 @@ ice-y := ice_main.o \ ice_lag.o \ ice_ethtool.o \ ice_repr.o \ - ice_tc_lib.o \ - ice_dpll.o + ice_tc_lib.o ice-$(CONFIG_PCI_IOV) += \ ice_sriov.o \ ice_virtchnl.o \ @@ -44,7 +43,7 @@ ice-$(CONFIG_PCI_IOV) += \ ice_vf_mbx.o \ ice_vf_vsi_vlan_ops.o \ ice_vf_lib.o -ice-$(CONFIG_PTP_1588_CLOCK) += ice_ptp.o ice_ptp_hw.o +ice-$(CONFIG_PTP_1588_CLOCK) += ice_dpll.o ice_ptp.o ice_ptp_hw.o ice-$(CONFIG_DCB) += ice_dcb.o ice_dcb_nl.o ice_dcb_lib.o ice-$(CONFIG_RFS_ACCEL) += ice_arfs.o ice-$(CONFIG_XDP_SOCKETS) += ice_xsk.o diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index e22f41fea8db..9b48918dcdb7 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -4665,8 +4665,9 @@ static void ice_init_features(struct ice_pf *pf) if (ice_is_feature_supported(pf, ICE_F_GNSS)) ice_gnss_init(pf); - if (ice_is_feature_supported(pf, ICE_F_CGU) || - ice_is_feature_supported(pf, ICE_F_PHY_RCLK)) + if (IS_ENABLED(CONFIG_PTP_1588_CLOCK) && + (ice_is_feature_supported(pf, ICE_F_CGU) || + ice_is_feature_supported(pf, ICE_F_PHY_RCLK))) ice_dpll_init(pf); /* Note: Flow director init failure is non-fatal to load */ @@ -4695,7 +4696,8 @@ static void ice_deinit_features(struct ice_pf *pf) ice_gnss_exit(pf); if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) ice_ptp_release(pf); - if (test_bit(ICE_FLAG_DPLL, pf->flags)) + if (IS_ENABLED(CONFIG_PTP_1588_CLOCK) && + test_bit(ICE_FLAG_DPLL, pf->flags)) ice_dpll_deinit(pf); }
DPLL code in ice unconditionally calls several PTP functions which are only built when CONFIG_PTP_1588_CLOCK is set. This throws a good bunch of link errors: ERROR: modpost: "ice_cgu_get_pin_name" [drivers/net/ethernet/intel/ice/ice.ko] undefined! ERROR: modpost: "ice_get_cgu_state" [drivers/net/ethernet/intel/ice/ice.ko] undefined! OR: modpost: "ice_is_cgu_present" [drivers/net/ethernet/intel/ice/ice.ko] undefined! ERROR: modpost: "ice_get_cgu_rclk_pin_info" [drivers/net/ethernet/intel/ice/ice.ko] undefined! ERROR: modpost: "ice_cgu_get_pin_type" [drivers/net/ethernet/intel/ice/ice.ko] undefined! ERROR: modpost: "ice_cgu_get_pin_freq_supp" [drivers/net/ethernet/intel/ice/ice.ko] undefined! ice_dpll_{,de}init() can be only called at runtime when the corresponding feature flags are set, which is not the case when PTP support is not compiled. However, the linker has no clue about this. Compile DPLL code only when CONFIG_PTP_1588_CLOCK is enabled and guard the mentioned init/deinit function calls, so that ice_dpll.o is only referred when it gets compiled. Note that ideally ice_is_feature_supported() needs to check for compile-time flags first to be able to handle this without any additional call guards, and we may want to do that in the future. Fixes: d7999f5ea64b ("ice: implement dpll interface to control cgu") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202309191214.TaYEct4H-lkp@intel.com Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com> --- drivers/net/ethernet/intel/ice/Makefile | 5 ++--- drivers/net/ethernet/intel/ice/ice_main.c | 8 +++++--- 2 files changed, 7 insertions(+), 6 deletions(-)