kernel: lantiq: vrx518_tc: add patch fix compilation warning for ptm_tc

Alloc MIB struct dynamically instead to fix compilation warning for
stack limit.
Fix compilation warning:
/__w/openwrt/openwrt/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_chromium/vrx518_tc_drv-ugw_8.5.2.10/dcdp/ptm_tc.c: In function 'ptm_tc_get_stats':
/__w/openwrt/openwrt/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_chromium/vrx518_tc_drv-ugw_8.5.2.10/dcdp/ptm_tc.c:463:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
  463 | }
      | ^
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

diff --git a/package/kernel/lantiq/vrx518_tc/patches/205-dcdp-ptm_tc-dynamically-alloc-mib.patch b/package/kernel/lantiq/vrx518_tc/patches/205-dcdp-ptm_tc-dynamically-alloc-mib.patch
new file mode 100644 (file)
index 0000000..ca4c041
--- /dev/null
+++ b/package/kernel/lantiq/vrx518_tc/patches/205-dcdp-ptm_tc-dynamically-alloc-mib.patch
@@ -0,0 +1,206 @@
+--- a/dcdp/ptm_tc.c
++++ b/dcdp/ptm_tc.c
+@@ -298,15 +298,19 @@ static int ptm_tc_get_stats(struct ptm_e
+ )
+ {
+       struct rtnl_link_stats64 *stat;
+-      struct wan_rx_mib_table rx_mib;
++      struct wan_rx_mib_table *rx_mib;
+       unsigned int cur_cnt, last_cnt;
+       struct intel_tc_ptm_sl_stats *ptm_sl_stats;
+       struct ptm_priv *ptm_tc;
++      int ret = 0;
+       if (!priv || !stats)
+               return -EFAULT;
+       ptm_tc = priv->ptm_tc;
+       if (!ptm_tc)
+               return -EFAULT;
++      rx_mib = kzalloc(sizeof(*rx_mib), GFP_KERNEL);
++      if (!rx_mib)
++              return -ENOMEM;
+       if (bonding)
+               stats->tc_info = TC_PTM_BND_MODE;
+       else
+@@ -340,11 +344,11 @@ static int ptm_tc_get_stats(struct ptm_e
+               ? cur_cnt - last_cnt
+               : cur_cnt + ((unsigned int)(-1) - last_cnt);
+ 
+-      tc_mem_read(priv, &rx_mib,
++      tc_mem_read(priv, rx_mib,
+               fpi_addr(__RX_GIF_MIB_BASE),
+-              sizeof(rx_mib)
++              sizeof(*rx_mib)
+       );
+-      ptm_sl_stats->wrx_gif_drop_pdu = rx_mib.wrx_dropdes_pdu;
++      ptm_sl_stats->wrx_gif_drop_pdu = rx_mib->wrx_dropdes_pdu;
+ 
+       cur_cnt = tc_r32(GIF0_RX_CRC_ERR_CNT);
+       last_cnt = priv->ptm_mib.rx_crc_err_pdu[0];
+@@ -358,7 +362,7 @@ static int ptm_tc_get_stats(struct ptm_e
+               ? cur_cnt - last_cnt
+               : cur_cnt + ((unsigned int)(-1) - last_cnt);
+ 
+-      ptm_sl_stats->wrx_gif_total_bytes = rx_mib.wrx_total_bytes;
++      ptm_sl_stats->wrx_gif_total_bytes = rx_mib->wrx_total_bytes;
+       cur_cnt = sb_r32(__US_TC_LOCAL_Q_CFG_CTXT_BASE +
+               offsetof(desq_cfg_ctxt_t, deq_pkt_cnt) / 4);
+       last_cnt = priv->ptm_mib.tx_total_pdu[0];
+@@ -376,90 +380,108 @@ static int ptm_tc_get_stats(struct ptm_e
+       /* For bonding information */
+       if (bonding) {
+               int i;
+-              struct intel_tc_ptm_bonding_stats ptm_ds;
+-              struct intel_tc_ptm_bonding_stats ptm_us;
++              struct intel_tc_ptm_bonding_stats *ptm_ds;
++              struct intel_tc_ptm_bonding_stats *ptm_us;
+               struct intel_tc_ptm_bonding_stats *ptm_bonding_stats;
++
++              ptm_ds = kzalloc(sizeof(*ptm_ds), GFP_KERNEL);
++              if (!ptm_ds) {
++                      ret = -ENOMEM;
++                      goto free_rx_mib;
++              }
++              
++              ptm_us = kzalloc(sizeof(*ptm_us), GFP_KERNEL);
++              if (!ptm_us) {
++                      ret = -ENOMEM;
++                      goto free_ptm_ds;
++              }
++
+               priv = tc_ep_priv(0);
+-              ptm_tc_bond_get_stats(priv, &ptm_ds);
++              ptm_tc_bond_get_stats(priv, ptm_ds);
+               priv = tc_ep_priv(1);
+-              ptm_tc_bond_get_stats(priv, &ptm_us);
++              ptm_tc_bond_get_stats(priv, ptm_us);
+               ptm_bonding_stats =
+                       &(stats->stats.ptm_tc_stats.pmt_bonding_stats);
+               for (i = 0; i < 8; i++)
+                       ptm_bonding_stats->us_gif_mib[i] =
+-                              ptm_ds.us_gif_mib[i] + ptm_us.us_gif_mib[i];
++                              ptm_ds->us_gif_mib[i] + ptm_us->us_gif_mib[i];
+               for (i = 0; i < 8; i++) {
+                       ptm_bonding_stats->ds_gif_mib[i].rx_frag_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_frag_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_frag_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_frag_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_frag_byte_cnt;
+                       ptm_bonding_stats->ds_gif_mib[i].rx_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_byte_cnt;
+                       ptm_bonding_stats->ds_gif_mib[i].rx_of_frag_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_of_frag_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_of_frag_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_of_frag_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_of_frag_byte_cnt;
+                       ptm_bonding_stats->ds_gif_mib[i].rx_of_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_of_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_of_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_of_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_of_byte_cnt;
+                       ptm_bonding_stats->ds_gif_mib[i].rx_oor_frag_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_oor_frag_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_oor_frag_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_oor_frag_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_oor_frag_byte_cnt;
+                       ptm_bonding_stats->ds_gif_mib[i].rx_miss_frag_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_miss_frag_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_miss_frag_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_miss_frag_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_miss_frag_byte_cnt;
+                       ptm_bonding_stats->ds_gif_mib[i].rx_to_frag_byte_cnt =
+-                              ptm_ds.ds_gif_mib[i].rx_to_frag_byte_cnt
+-                              + ptm_us.ds_gif_mib[i].rx_to_frag_byte_cnt;
++                              ptm_ds->ds_gif_mib[i].rx_to_frag_byte_cnt
++                              + ptm_us->ds_gif_mib[i].rx_to_frag_byte_cnt;
+               }
+               for (i = 0; i < 4; i++) {
+                       ptm_bonding_stats->ds_bg_mib[i].conform_pkt_cnt =
+-                              ptm_ds.ds_bg_mib[i].conform_pkt_cnt
+-                              + ptm_us.ds_bg_mib[i].conform_pkt_cnt;
++                              ptm_ds->ds_bg_mib[i].conform_pkt_cnt
++                              + ptm_us->ds_bg_mib[i].conform_pkt_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].conform_frag_cnt =
+-                              ptm_ds.ds_bg_mib[i].conform_frag_cnt
+-                              + ptm_us.ds_bg_mib[i].conform_frag_cnt;
++                              ptm_ds->ds_bg_mib[i].conform_frag_cnt
++                              + ptm_us->ds_bg_mib[i].conform_frag_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].conform_byte_cnt =
+-                              ptm_ds.ds_bg_mib[i].conform_byte_cnt
+-                              + ptm_us.ds_bg_mib[i].conform_byte_cnt;
++                              ptm_ds->ds_bg_mib[i].conform_byte_cnt
++                              + ptm_us->ds_bg_mib[i].conform_byte_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].no_sop_pkt_cnt =
+-                              ptm_ds.ds_bg_mib[i].no_sop_pkt_cnt
+-                              + ptm_us.ds_bg_mib[i].no_sop_pkt_cnt;
++                              ptm_ds->ds_bg_mib[i].no_sop_pkt_cnt
++                              + ptm_us->ds_bg_mib[i].no_sop_pkt_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].no_sop_frag_cnt =
+-                              ptm_ds.ds_bg_mib[i].no_sop_frag_cnt
+-                              + ptm_us.ds_bg_mib[i].no_sop_frag_cnt;
++                              ptm_ds->ds_bg_mib[i].no_sop_frag_cnt
++                              + ptm_us->ds_bg_mib[i].no_sop_frag_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].no_sop_byte_cnt =
+-                              ptm_ds.ds_bg_mib[i].no_sop_byte_cnt
+-                              + ptm_us.ds_bg_mib[i].no_sop_byte_cnt;
++                              ptm_ds->ds_bg_mib[i].no_sop_byte_cnt
++                              + ptm_us->ds_bg_mib[i].no_sop_byte_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].no_eop_pkt_cnt =
+-                              ptm_ds.ds_bg_mib[i].no_eop_pkt_cnt
+-                              + ptm_us.ds_bg_mib[i].no_eop_pkt_cnt;
++                              ptm_ds->ds_bg_mib[i].no_eop_pkt_cnt
++                              + ptm_us->ds_bg_mib[i].no_eop_pkt_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].no_eop_frag_cnt =
+-                              ptm_ds.ds_bg_mib[i].no_eop_frag_cnt
+-                              + ptm_us.ds_bg_mib[i].no_eop_frag_cnt;
++                              ptm_ds->ds_bg_mib[i].no_eop_frag_cnt
++                              + ptm_us->ds_bg_mib[i].no_eop_frag_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].no_eop_byte_cnt =
+-                              ptm_ds.ds_bg_mib[i].no_eop_byte_cnt
+-                              + ptm_us.ds_bg_mib[i].no_eop_byte_cnt;
++                              ptm_ds->ds_bg_mib[i].no_eop_byte_cnt
++                              + ptm_us->ds_bg_mib[i].no_eop_byte_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].oversize_pkt_cnt =
+-                              ptm_ds.ds_bg_mib[i].oversize_pkt_cnt
+-                              + ptm_us.ds_bg_mib[i].oversize_pkt_cnt;
++                              ptm_ds->ds_bg_mib[i].oversize_pkt_cnt
++                              + ptm_us->ds_bg_mib[i].oversize_pkt_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].oversize_frag_cnt =
+-                              ptm_ds.ds_bg_mib[i].oversize_frag_cnt
+-                              + ptm_us.ds_bg_mib[i].oversize_frag_cnt;
++                              ptm_ds->ds_bg_mib[i].oversize_frag_cnt
++                              + ptm_us->ds_bg_mib[i].oversize_frag_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].oversize_byte_cnt =
+-                              ptm_ds.ds_bg_mib[i].oversize_byte_cnt
+-                              + ptm_us.ds_bg_mib[i].oversize_byte_cnt;
++                              ptm_ds->ds_bg_mib[i].oversize_byte_cnt
++                              + ptm_us->ds_bg_mib[i].oversize_byte_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].noncosec_pkt_cnt =
+-                              ptm_ds.ds_bg_mib[i].noncosec_pkt_cnt
+-                              + ptm_us.ds_bg_mib[i].noncosec_pkt_cnt;
++                              ptm_ds->ds_bg_mib[i].noncosec_pkt_cnt
++                              + ptm_us->ds_bg_mib[i].noncosec_pkt_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].noncosec_frag_cnt =
+-                              ptm_ds.ds_bg_mib[i].noncosec_frag_cnt
+-                              + ptm_us.ds_bg_mib[i].noncosec_frag_cnt;
++                              ptm_ds->ds_bg_mib[i].noncosec_frag_cnt
++                              + ptm_us->ds_bg_mib[i].noncosec_frag_cnt;
+                       ptm_bonding_stats->ds_bg_mib[i].noncosec_byte_cnt =
+-                              ptm_ds.ds_bg_mib[i].noncosec_byte_cnt
+-                              + ptm_us.ds_bg_mib[i].noncosec_byte_cnt;
++                              ptm_ds->ds_bg_mib[i].noncosec_byte_cnt
++                              + ptm_us->ds_bg_mib[i].noncosec_byte_cnt;
+               }
++              kfree(ptm_us);
++free_ptm_ds:
++              kfree(ptm_ds);
+       }
+-      return 0;
++free_rx_mib:
++      kfree(rx_mib);
++      return ret;
+ }
+ static int ptm_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ {