WARNING: printk() should include KERN_<LEVEL> facility level
#30: FILE: net/core/skbuff.c:1315:
+	printk("%sskb len=%u data_len=%u headroom=%u headlen=%u tailroom=%u\n"

WARNING: Integer promotion: Using 'h' in '%hu' is unnecessary
#30: FILE: net/core/skbuff.c:1315:
+	printk("%sskb len=%u data_len=%u headroom=%u headlen=%u tailroom=%u\n"
+	       "end-tail=%u mac=(%d,%d) mac_len=%u net=(%d,%d) trans=%d\n"
 	       "shinfo(txflags=%u nr_frags=%u gso(size=%hu type=%u segs=%hu))\n"
 	       "csum(0x%x start=%u offset=%u ip_summed=%u complete_sw=%u valid=%u level=%u)\n"
 	       "hash(0x%x sw=%u l4=%u) proto=0x%04x pkttype=%u iif=%d\n"
 	       "priority=0x%x mark=0x%x alloc_cpu=%u vlan_all=0x%x\n"
 	       "encapsulation=%d inner(proto=0x%04x, mac=%u, net=%u, trans=%u)\n",
+	       level, skb->len, skb->data_len, headroom, skb_headlen(skb),
+	       level, skb->len, skb->data_len, headroom, skb_headlen(skb),
+	       tailroom, skb->end - skb->tail,
 	       has_mac ? skb->mac_header : -1,
 	       has_mac ? skb_mac_header_len(skb) : -1,
 	       skb->mac_len,

WARNING: Integer promotion: Using 'h' in '%hu' is unnecessary
#30: FILE: net/core/skbuff.c:1315:
+	printk("%sskb len=%u data_len=%u headroom=%u headlen=%u tailroom=%u\n"
+	       "end-tail=%u mac=(%d,%d) mac_len=%u net=(%d,%d) trans=%d\n"
 	       "shinfo(txflags=%u nr_frags=%u gso(size=%hu type=%u segs=%hu))\n"
 	       "csum(0x%x start=%u offset=%u ip_summed=%u complete_sw=%u valid=%u level=%u)\n"
 	       "hash(0x%x sw=%u l4=%u) proto=0x%04x pkttype=%u iif=%d\n"
 	       "priority=0x%x mark=0x%x alloc_cpu=%u vlan_all=0x%x\n"
 	       "encapsulation=%d inner(proto=0x%04x, mac=%u, net=%u, trans=%u)\n",
+	       level, skb->len, skb->data_len, headroom, skb_headlen(skb),
+	       level, skb->len, skb->data_len, headroom, skb_headlen(skb),
+	       tailroom, skb->end - skb->tail,
 	       has_mac ? skb->mac_header : -1,
 	       has_mac ? skb_mac_header_len(skb) : -1,
 	       skb->mac_len,

total: 0 errors, 3 warnings, 0 checks, 18 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 2a36492afb4f ("net: add skb->data_len and (skb>end - skb->tail) to skb_dump()") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 0 checks, 18 lines checked