Message-ID: <CAPqVEOBeuFMAFEyiDEWg39yJ33M8U1okkJ32keOyARcXqLJW9Q@mail.gmail.com>
Date:   Tue, 21 Nov 2023 12:55:27 -0800
From:   Ray Zhang <sgzhang@...gle.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: stmmac: fix out-of-bounds read via memcpy detected
 by KASAN

On Tue, Nov 21, 2023 at 12:36 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> >     >      q0_tx_irq_n: 4
> >     >      q0_rx_pkt_n: 64
> >     >      q0_rx_irq_n: 58
> >
> >     What useful information does this list of statistics bring in the
> >     commit message?
> >
> > Each output line of "ethtool -S" is from the modified code: It shows the
> > command still yields normal output results as expected.
>
> Does it? Can you actually say that looking at it?
>
Yes, I had debugging pr_err output:

[  478.894392] STMMAC_SAFETY_FEAT i=0, desc=ATPES (len 6)
[  478.899709] STMMAC_SAFETY_FEAT i=1, desc=TPES (len 5)
[  478.905031] STMMAC_SAFETY_FEAT i=2, desc=RDPES (len 6)
[  478.910871] STMMAC_SAFETY_FEAT i=3, desc=MPES (len 5)
[  478.916095] STMMAC_SAFETY_FEAT i=4, desc=MTSPES (len 7)
[  478.921379] STMMAC_SAFETY_FEAT i=5, desc=ARPES (len 6)
[  478.926517] STMMAC_SAFETY_FEAT i=6, desc=CWPES (len 6)
[  478.931645] STMMAC_SAFETY_FEAT i=7, desc=ASRPES (len 7)
[  478.936858] STMMAC_SAFETY_FEAT i=8, desc=TTES (len 5)
[  478.942393] STMMAC_SAFETY_FEAT i=9, desc=RTES (len 5)
[  478.947845] STMMAC_SAFETY_FEAT i=10, desc=CTES (len 5)
[  478.953220] STMMAC_SAFETY_FEAT i=11, desc=ATES (len 5)
[  478.958524] STMMAC_SAFETY_FEAT i=12, desc=PTES (len 5)
[  478.963828] STMMAC_SAFETY_FEAT i=13, desc=T125ES (len 7)
[  478.969224] STMMAC_SAFETY_FEAT i=14, desc=R125ES (len 7)
[  478.975814] STMMAC_SAFETY_FEAT i=15, desc=RVCTES (len 7)
[  478.981215] STMMAC_SAFETY_FEAT i=16, desc=MSTTES (len 7)
[  478.986599] STMMAC_SAFETY_FEAT i=17, desc=SLVTES (len 7)
[  478.992014] STMMAC_SAFETY_FEAT i=18, desc=ATITES (len 7)
[  478.997435] STMMAC_SAFETY_FEAT i=19, desc=ARITES (len 7)
[  479.003322] STMMAC_SAFETY_FEAT i=24, desc=FSMPES (len 7)
[  479.009327] STMMAC_SAFETY_FEAT i=32, desc=TXCES (len 6)
[  479.014637] STMMAC_SAFETY_FEAT i=33, desc=TXAMS (len 6)
[  479.019921] STMMAC_SAFETY_FEAT i=34, desc=TXUES (len 6)
[  479.025223] STMMAC_SAFETY_FEAT i=36, desc=RXCES (len 6)
[  479.030500] STMMAC_SAFETY_FEAT i=37, desc=RXAMS (len 6)
[  479.035792] STMMAC_SAFETY_FEAT i=38, desc=RXUES (len 6)
[  479.041669] STMMAC_SAFETY_FEAT i=40, desc=ECES (len 5)
[  479.047457] STMMAC_SAFETY_FEAT i=41, desc=EAMS (len 5)
[  479.053143] STMMAC_SAFETY_FEAT i=42, desc=EUES (len 5)
[  479.058443] STMMAC_SAFETY_FEAT i=44, desc=RPCES (len 6)
[  479.063739] STMMAC_SAFETY_FEAT i=45, desc=RPAMS (len 6)
[  479.069331] STMMAC_SAFETY_FEAT i=46, desc=RPUES (len 6)
[  479.075499] STMMAC_SAFETY_FEAT i=64, desc=TCES (len 5)
[  479.080711] STMMAC_SAFETY_FEAT i=65, desc=TAMS (len 5)
[  479.086348] STMMAC_SAFETY_FEAT i=66, desc=TUES (len 5)
[  479.091573] STMMAC_MMC_STATS i=0, stat_string=mmc_tx_octetcount_gb (len 21)
[  479.098852] STMMAC_MMC_STATS i=1, stat_string=mmc_tx_framecount_gb (len 21)
[  479.106581] STMMAC_MMC_STATS i=2,
stat_string=mmc_tx_broadcastframe_g (len 24)
[  479.113988] STMMAC_MMC_STATS i=3,
stat_string=mmc_tx_multicastframe_g (len 24)
[  479.121221] STMMAC_MMC_STATS i=4, stat_string=mmc_tx_64_octets_gb (len 20)
[  479.128558] STMMAC_MMC_STATS i=5,
stat_string=mmc_tx_65_to_127_octets_gb (len 27)
[  479.136418] STMMAC_MMC_STATS i=6,
stat_string=mmc_tx_128_to_255_octets_gb (len 28)
[  479.144041] STMMAC_MMC_STATS i=7,
stat_string=mmc_tx_256_to_511_octets_gb (len 28)
[  479.151663] STMMAC_MMC_STATS i=8,
stat_string=mmc_tx_512_to_1023_octets_gb (len 29)
[  479.159495] STMMAC_MMC_STATS i=9,
stat_string=mmc_tx_1024_to_max_octets_gb (len 29)
[  479.167255] STMMAC_MMC_STATS i=10, stat_string=mmc_tx_unicast_gb (len 18)
[  479.174755] STMMAC_MMC_STATS i=11, stat_string=mmc_tx_multicast_gb (len 20)
[  479.181826] STMMAC_MMC_STATS i=12, stat_string=mmc_tx_broadcast_gb (len 20)
[  479.188892] STMMAC_MMC_STATS i=13,
stat_string=mmc_tx_underflow_error (len 23)
[  479.196211] STMMAC_MMC_STATS i=14, stat_string=mmc_tx_singlecol_g (len 19)
[  479.203783] STMMAC_MMC_STATS i=15, stat_string=mmc_tx_multicol_g (len 18)
[  479.211106] STMMAC_MMC_STATS i=16, stat_string=mmc_tx_deferred (len 16)
[  479.217826] STMMAC_MMC_STATS i=17, stat_string=mmc_tx_latecol (len 15)
[  479.224438] STMMAC_MMC_STATS i=18, stat_string=mmc_tx_exesscol (len 16)
[  479.231523] STMMAC_MMC_STATS i=19, stat_string=mmc_tx_carrier_error (len 21)
[  479.239095] STMMAC_MMC_STATS i=20, stat_string=mmc_tx_octetcount_g (len 20)
[  479.246178] STMMAC_MMC_STATS i=21, stat_string=mmc_tx_framecount_g (len 20)
[  479.253215] STMMAC_MMC_STATS i=22, stat_string=mmc_tx_excessdef (len 17)
[  479.260032] STMMAC_MMC_STATS i=23, stat_string=mmc_tx_pause_frame (len 19)
[  479.267486] STMMAC_MMC_STATS i=24, stat_string=mmc_tx_vlan_frame_g (len 20)
[  479.274846] STMMAC_MMC_STATS i=25, stat_string=mmc_rx_framecount_gb (len 21)
[  479.282005] STMMAC_MMC_STATS i=26, stat_string=mmc_rx_octetcount_gb (len 21)
[  479.289186] STMMAC_MMC_STATS i=27, stat_string=mmc_rx_octetcount_g (len 20)
[  479.296734] STMMAC_MMC_STATS i=28,
stat_string=mmc_rx_broadcastframe_g (len 24)
[  479.304493] STMMAC_MMC_STATS i=29,
stat_string=mmc_rx_multicastframe_g (len 24)
[  479.312253] STMMAC_MMC_STATS i=30, stat_string=mmc_rx_crc_error (len 17)
[  479.319095] STMMAC_MMC_STATS i=31, stat_string=mmc_rx_align_error (len 19)
[  479.326165] STMMAC_MMC_STATS i=32, stat_string=mmc_rx_run_error (len 17)
[  479.333660] STMMAC_MMC_STATS i=33, stat_string=mmc_rx_jabber_error (len 20)
[  479.340771] STMMAC_MMC_STATS i=34, stat_string=mmc_rx_undersize_g (len 19)
[  479.348068] STMMAC_MMC_STATS i=35, stat_string=mmc_rx_oversize_g (len 18)
[  479.354991] STMMAC_MMC_STATS i=36, stat_string=mmc_rx_64_octets_gb (len 20)
[  479.362603] STMMAC_MMC_STATS i=37,
stat_string=mmc_rx_65_to_127_octets_gb (len 27)
[  479.370270] STMMAC_MMC_STATS i=38,
stat_string=mmc_rx_128_to_255_octets_gb (len 28)
[  479.378296] STMMAC_MMC_STATS i=39,
stat_string=mmc_rx_256_to_511_octets_gb (len 28)
[  479.386073] STMMAC_MMC_STATS i=40,
stat_string=mmc_rx_512_to_1023_octets_gb (len 29)
[  479.394288] STMMAC_MMC_STATS i=41,
stat_string=mmc_rx_1024_to_max_octets_gb (len 29)
[  479.402684] STMMAC_MMC_STATS i=42, stat_string=mmc_rx_unicast_g (len 17)
[  479.409814] STMMAC_MMC_STATS i=43, stat_string=mmc_rx_length_error (len 20)
[  479.416918] STMMAC_MMC_STATS i=44, stat_string=mmc_rx_autofrangetype (len 22)
[  479.424442] STMMAC_MMC_STATS i=45, stat_string=mmc_rx_pause_frames (len 20)
[  479.431496] STMMAC_MMC_STATS i=46, stat_string=mmc_rx_fifo_overflow (len 21)
[  479.439027] STMMAC_MMC_STATS i=47, stat_string=mmc_rx_vlan_frames_gb (len 22)
[  479.446291] STMMAC_MMC_STATS i=48, stat_string=mmc_rx_watchdog_error (len 22)
[  479.454142] STMMAC_MMC_STATS i=49, stat_string=mmc_rx_ipc_intr_mask (len 21)
[  479.461296] STMMAC_MMC_STATS i=50, stat_string=mmc_rx_ipc_intr (len 16)
[  479.468000] STMMAC_MMC_STATS i=51, stat_string=mmc_rx_ipv4_gd (len 15)
[  479.474577] STMMAC_MMC_STATS i=52, stat_string=mmc_rx_ipv4_hderr (len 18)
[  479.481716] STMMAC_MMC_STATS i=53, stat_string=mmc_rx_ipv4_nopay (len 18)
[  479.489143] STMMAC_MMC_STATS i=54, stat_string=mmc_rx_ipv4_frag (len 17)
[  479.495926] STMMAC_MMC_STATS i=55, stat_string=mmc_rx_ipv4_udsbl (len 18)
[  479.503251] STMMAC_MMC_STATS i=56, stat_string=mmc_rx_ipv4_gd_octets (len 22)
[  479.511207] STMMAC_MMC_STATS i=57,
stat_string=mmc_rx_ipv4_hderr_octets (len 25)
[  479.519274] STMMAC_MMC_STATS i=58,
stat_string=mmc_rx_ipv4_nopay_octets (len 25)
[  479.527106] STMMAC_MMC_STATS i=59,
stat_string=mmc_rx_ipv4_frag_octets (len 24)
[  479.534839] STMMAC_MMC_STATS i=60,
stat_string=mmc_rx_ipv4_udsbl_octets (len 25)
[  479.543108] STMMAC_MMC_STATS i=61, stat_string=mmc_rx_ipv6_gd_octets (len 22)
[  479.551189] STMMAC_MMC_STATS i=62,
stat_string=mmc_rx_ipv6_hderr_octets (len 25)
[  479.558948] STMMAC_MMC_STATS i=63,
stat_string=mmc_rx_ipv6_nopay_octets (len 25)
[  479.566482] STMMAC_MMC_STATS i=64, stat_string=mmc_rx_ipv6_gd (len 15)
[  479.573359] STMMAC_MMC_STATS i=65, stat_string=mmc_rx_ipv6_hderr (len 18)
[  479.580295] STMMAC_MMC_STATS i=66, stat_string=mmc_rx_ipv6_nopay (len 18)
[  479.587919] STMMAC_MMC_STATS i=67, stat_string=mmc_rx_udp_gd (len 14)
[  479.594580] STMMAC_MMC_STATS i=68, stat_string=mmc_rx_udp_err (len 15)
[  479.601159] STMMAC_MMC_STATS i=69, stat_string=mmc_rx_tcp_gd (len 14)
[  479.608608] STMMAC_MMC_STATS i=70, stat_string=mmc_rx_tcp_err (len 15)
[  479.615219] STMMAC_MMC_STATS i=71, stat_string=mmc_rx_icmp_gd (len 15)
[  479.623283] STMMAC_MMC_STATS i=72, stat_string=mmc_rx_icmp_err (len 16)
[  479.630368] STMMAC_MMC_STATS i=73, stat_string=mmc_rx_udp_gd_octets (len 21)
[  479.637536] STMMAC_MMC_STATS i=74, stat_string=mmc_rx_udp_err_octets (len 22)
[  479.644805] STMMAC_MMC_STATS i=75, stat_string=mmc_rx_tcp_gd_octets (len 21)
[  479.652646] STMMAC_MMC_STATS i=76, stat_string=mmc_rx_tcp_err_octets (len 22)
[  479.659901] STMMAC_MMC_STATS i=77, stat_string=mmc_rx_icmp_gd_octets (len 22)
[  479.667117] STMMAC_MMC_STATS i=78,
stat_string=mmc_rx_icmp_err_octets (len 23)
[  479.674434] STMMAC_MMC_STATS i=79,
stat_string=mmc_tx_fpe_fragment_cntr (len 25)
[  479.682463] STMMAC_MMC_STATS i=80, stat_string=mmc_tx_hold_req_cntr (len 21)
[  479.689589] STMMAC_MMC_STATS i=81,
stat_string=mmc_rx_packet_assembly_err_cntr (len 32)
[  479.698065] STMMAC_MMC_STATS i=82,
stat_string=mmc_rx_packet_smd_err_cntr (len 27)
[  479.705703] STMMAC_MMC_STATS i=83,
stat_string=mmc_rx_packet_assembly_ok_cntr (len 31)
[  479.714707] STMMAC_MMC_STATS i=84,
stat_string=mmc_rx_fpe_fragment_cntr (len 25)
[  479.722188] STMMAC_STATS i=0, stat_string=tx_underflow (len 13)
[  479.728183] STMMAC_STATS i=1, stat_string=tx_carrier (len 11)
[  479.734050] STMMAC_STATS i=2, stat_string=tx_losscarrier (len 15)
[  479.740197] STMMAC_STATS i=3, stat_string=vlan_tag (len 9)
[  479.746215] STMMAC_STATS i=4, stat_string=tx_deferred (len 12)
[  479.752119] STMMAC_STATS i=5, stat_string=tx_vlan (len 8)
[  479.757594] STMMAC_STATS i=6, stat_string=tx_jabber (len 10)
[  479.763319] STMMAC_STATS i=7, stat_string=tx_frame_flushed (len 17)
[  479.769629] STMMAC_STATS i=8, stat_string=tx_payload_error (len 17)
[  479.776479] STMMAC_STATS i=9, stat_string=tx_ip_header_error (len 19)
[  479.783392] STMMAC_STATS i=10, stat_string=rx_desc (len 8)
[  479.788970] STMMAC_STATS i=11, stat_string=sa_filter_fail (len 15)
[  479.795214] STMMAC_STATS i=12, stat_string=overflow_error (len 15)
[  479.801703] STMMAC_STATS i=13, stat_string=ipc_csum_error (len 15)
[  479.807983] STMMAC_STATS i=14, stat_string=rx_collision (len 13)
[  479.814460] STMMAC_STATS i=15, stat_string=rx_crc_errors (len 14)
[  479.820938] STMMAC_STATS i=16, stat_string=dribbling_bit (len 14)
[  479.827136] STMMAC_STATS i=17, stat_string=rx_length (len 10)
[  479.833604] STMMAC_STATS i=18, stat_string=rx_mii (len 7)
[  479.839619] STMMAC_STATS i=19, stat_string=rx_multicast (len 13)
[  479.846480] STMMAC_STATS i=20, stat_string=rx_gmac_overflow (len 17)
[  479.852913] STMMAC_STATS i=21, stat_string=rx_watchdog (len 12)
[  479.859240] STMMAC_STATS i=22, stat_string=da_rx_filter_fail (len 18)
[  479.865760] STMMAC_STATS i=23, stat_string=sa_rx_filter_fail (len 18)
[  479.872687] STMMAC_STATS i=24, stat_string=rx_missed_cntr (len 15)
[  479.879075] STMMAC_STATS i=25, stat_string=rx_overflow_cntr (len 17)
[  479.885573] STMMAC_STATS i=26, stat_string=rx_vlan (len 8)
[  479.891122] STMMAC_STATS i=27, stat_string=rx_split_hdr_pkt_n (len 19)
[  479.897705] STMMAC_STATS i=28, stat_string=tx_undeflow_irq (len 16)
[  479.904499] STMMAC_STATS i=29, stat_string=tx_process_stopped_irq (len 23)
[  479.911457] STMMAC_STATS i=30, stat_string=tx_jabber_irq (len 14)
[  479.917897] STMMAC_STATS i=31, stat_string=rx_overflow_irq (len 16)
[  479.924268] STMMAC_STATS i=32, stat_string=rx_buf_unav_irq (len 16)
[  479.930722] STMMAC_STATS i=33, stat_string=rx_process_stopped_irq (len 23)
[  479.938108] STMMAC_STATS i=34, stat_string=rx_watchdog_irq (len 16)
[  479.944518] STMMAC_STATS i=35, stat_string=tx_early_irq (len 13)
[  479.950895] STMMAC_STATS i=36, stat_string=fatal_bus_error_irq (len 20)
[  479.957622] STMMAC_STATS i=37, stat_string=rx_early_irq (len 13)
[  479.964082] STMMAC_STATS i=38, stat_string=threshold (len 10)
[  479.970509] STMMAC_STATS i=39, stat_string=tx_pkt_n (len 9)
[  479.976159] STMMAC_STATS i=40, stat_string=rx_pkt_n (len 9)
[  479.981799] STMMAC_STATS i=41, stat_string=normal_irq_n (len 13)
[  479.987917] STMMAC_STATS i=42, stat_string=rx_normal_irq_n (len 16)
[  479.994283] STMMAC_STATS i=43, stat_string=napi_poll (len 10)
[  480.000395] STMMAC_STATS i=44, stat_string=tx_normal_irq_n (len 16)
[  480.006807] STMMAC_STATS i=45, stat_string=tx_clean (len 9)
[  480.012865] STMMAC_STATS i=46, stat_string=tx_set_ic_bit (len 14)
[  480.019043] STMMAC_STATS i=47, stat_string=irq_receive_pmt_irq_n (len 22)
[  480.026155] STMMAC_STATS i=48, stat_string=mmc_tx_irq_n (len 13)
[  480.032833] STMMAC_STATS i=49, stat_string=mmc_rx_irq_n (len 13)
[  480.038994] STMMAC_STATS i=50, stat_string=mmc_rx_csum_offload_irq_n (len 26)
[  480.046500] STMMAC_STATS i=51, stat_string=irq_tx_path_in_lpi_mode_n (len 26)
[  480.053710] STMMAC_STATS i=52,
stat_string=irq_tx_path_exit_lpi_mode_n (len 28)
[  480.061074] STMMAC_STATS i=53, stat_string=irq_rx_path_in_lpi_mode_n (len 26)
[  480.068830] STMMAC_STATS i=54,
stat_string=irq_rx_path_exit_lpi_mode_n (len 28)
[  480.076913] STMMAC_STATS i=55, stat_string=phy_eee_wakeup_error_n (len 23)
[  480.083906] STMMAC_STATS i=56, stat_string=ip_hdr_err (len 11)
[  480.089803] STMMAC_STATS i=57, stat_string=ip_payload_err (len 15)
[  480.096634] STMMAC_STATS i=58, stat_string=ip_csum_bypassed (len 17)
[  480.103087] STMMAC_STATS i=59, stat_string=ipv4_pkt_rcvd (len 14)
[  480.109499] STMMAC_STATS i=60, stat_string=ipv6_pkt_rcvd (len 14)
[  480.115679] STMMAC_STATS i=61, stat_string=no_ptp_rx_msg_type_ext (len 23)
[  480.123066] STMMAC_STATS i=62, stat_string=ptp_rx_msg_type_sync (len 21)
[  480.130471] STMMAC_STATS i=63, stat_string=ptp_rx_msg_type_follow_up (len 26)
[  480.137685] STMMAC_STATS i=64, stat_string=ptp_rx_msg_type_delay_req (len 26)
[  480.145088] STMMAC_STATS i=65,
stat_string=ptp_rx_msg_type_delay_resp (len 27)
[  480.152385] STMMAC_STATS i=66,
stat_string=ptp_rx_msg_type_pdelay_req (len 27)
[  480.160200] STMMAC_STATS i=67,
stat_string=ptp_rx_msg_type_pdelay_resp (len 28)
[  480.167581] STMMAC_STATS i=68,
stat_string=ptp_rx_msg_type_pdelay_follow_u (len 32)
[  480.175469] STMMAC_STATS i=69, stat_string=ptp_rx_msg_type_announce (len 25)
[  480.182632] STMMAC_STATS i=70,
stat_string=ptp_rx_msg_type_management (len 27)
[  480.190369] STMMAC_STATS i=71,
stat_string=ptp_rx_msg_pkt_reserved_type (len 29)
[  480.197842] STMMAC_STATS i=72, stat_string=ptp_frame_type (len 15)
[  480.204065] STMMAC_STATS i=73, stat_string=ptp_ver (len 8)
[  480.209614] STMMAC_STATS i=74, stat_string=timestamp_dropped (len 18)
[  480.216092] STMMAC_STATS i=75, stat_string=av_pkt_rcvd (len 12)
[  480.222731] STMMAC_STATS i=76, stat_string=av_tagged_pkt_rcvd (len 19)
[  480.229353] STMMAC_STATS i=77, stat_string=vlan_tag_priority_val (len 22)
[  480.236491] STMMAC_STATS i=78, stat_string=l3_filter_match (len 16)
[  480.242895] STMMAC_STATS i=79, stat_string=l4_filter_match (len 16)
[  480.249616] STMMAC_STATS i=80, stat_string=l3_l4_filter_no_match (len 22)
[  480.256931] STMMAC_STATS i=81, stat_string=irq_pcs_ane_n (len 14)
[  480.264320] STMMAC_STATS i=82, stat_string=irq_pcs_link_n (len 15)
[  480.270901] STMMAC_STATS i=83, stat_string=irq_rgmii_n (len 12)
[  480.276921] STMMAC_STATS i=84, stat_string=mtl_tx_status_fifo_full (len 24)
[  480.283973] STMMAC_STATS i=85, stat_string=mtl_tx_fifo_not_empty (len 22)
[  480.291395] STMMAC_STATS i=86, stat_string=mmtl_fifo_ctrl (len 15)
[  480.298225] STMMAC_STATS i=87,
stat_string=mtl_tx_fifo_read_ctrl_write (len 28)
[  480.305608] STMMAC_STATS i=88,
stat_string=mtl_tx_fifo_read_ctrl_wait (len 27)
[  480.313299] STMMAC_STATS i=89,
stat_string=mtl_tx_fifo_read_ctrl_read (len 27)
[  480.320641] STMMAC_STATS i=90,
stat_string=mtl_tx_fifo_read_ctrl_idle (len 27)
[  480.328459] STMMAC_STATS i=91, stat_string=mac_tx_in_pause (len 16)
[  480.334810] STMMAC_STATS i=92, stat_string=mac_tx_frame_ctrl_xfer (len 23)
[  480.341777] STMMAC_STATS i=93, stat_string=mac_tx_frame_ctrl_idle (len 23)
[  480.349311] STMMAC_STATS i=94, stat_string=mac_tx_frame_ctrl_wait (len 23)
[  480.356688] STMMAC_STATS i=95, stat_string=mac_tx_frame_ctrl_pause (len 24)
[  480.363728] STMMAC_STATS i=96, stat_string=mac_gmii_tx_proto_engine (len 25)
[  480.370828] STMMAC_STATS i=97,
stat_string=mtl_rx_fifo_fill_level_full (len 28)
[  480.378256] STMMAC_STATS i=98,
stat_string=mtl_rx_fifo_fill_above_thresh (len 30)
[  480.386412] STMMAC_STATS i=99,
stat_string=mtl_rx_fifo_fill_below_thresh (len 30)
[  480.393993] STMMAC_STATS i=100,
stat_string=mtl_rx_fifo_fill_level_empty (len 29)
[  480.402512] STMMAC_STATS i=101,
stat_string=mtl_rx_fifo_read_ctrl_flush (len 28)
[  480.410014] STMMAC_STATS i=102,
stat_string=mtl_rx_fifo_read_ctrl_read_data (len 32)
[  480.418388] STMMAC_STATS i=103,
stat_string=mtl_rx_fifo_read_ctrl_status (len 29)
[  480.425965] STMMAC_STATS i=104,
stat_string=mtl_rx_fifo_read_ctrl_idle (len 27)
[  480.433324] STMMAC_STATS i=105, stat_string=mtl_rx_fifo_ctrl_active (len 24)
[  480.440431] STMMAC_STATS i=106, stat_string=mac_rx_frame_ctrl_fifo (len 23)
[  480.448023] STMMAC_STATS i=107, stat_string=mac_gmii_rx_proto_engine (len 25)
[  480.455226] STMMAC_STATS i=108, stat_string=tx_tso_frames (len 14)
[  480.461458] STMMAC_STATS i=109, stat_string=tx_tso_nfrags (len 14)
[  480.467714] STMMAC_STATS i=110, stat_string=mtl_est_cgce (len 13)
[  480.473848] STMMAC_STATS i=111, stat_string=mtl_est_hlbs (len 13)
[  480.480489] STMMAC_STATS i=112, stat_string=mtl_est_hlbf (len 13)
[  480.486665] STMMAC_STATS i=113, stat_string=mtl_est_btre (len 13)
[  480.493206] STMMAC_STATS i=114, stat_string=mtl_est_btrlm (len 14)


> > No, since strscpy does the job already. Also I could not find ethtool_puts:
> > where is it defined? Or do you mean ethtool_put_stat, which is inappropriate to
> > use here since it requires a skb parameter?
>
> https://patchwork.kernel.org/project/netdevbpf/patch/20231102-ethtool_puts_impl-v4-3-14e1e9278496@google.com/
>
> Maybe check with Justin when we will resend that patch.
Thanks for the link to ethtool_puts patch: Changing to use
ethtool_puts in stmmac should be in a separate patch, and not related
here.

>
>         Andrew

Ray

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