From cc20650a096370469919be0eb3b041fc5aa47b39 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 17 Jan 2026 08:34:47 +0000 Subject: [PATCH] scripts/bloat-o-meter: ignore __noinstr_text_start __noinstr_text_start is adding noise to the script, ignore it. For instance using __always_inline on __skb_incr_checksum_unnecessary and CC=clang build. Before this patch, __noinstr_text_start can show up and confuse us. $ scripts/bloat-o-meter -t vmlinux.old vmlinux.new add/remove: 0/2 grow/shrink: 3/0 up/down: 212/-206 (6) Function old new delta tcp6_gro_complete 208 283 +75 tcp4_gro_complete 376 449 +73 __noinstr_text_start 3536 3600 +64 __pfx___skb_incr_checksum_unnecessary 32 - -32 __skb_incr_checksum_unnecessary 174 - -174 Total: Before=25509464, After=25509470, chg +0.00% After this patch we have a more precise result. $ scripts/bloat-o-meter -t vmlinux.old vmlinux.new add/remove: 0/2 grow/shrink: 2/0 up/down: 148/-206 (-58) Function old new delta tcp6_gro_complete 208 283 +75 tcp4_gro_complete 376 449 +73 __pfx___skb_incr_checksum_unnecessary 32 - -32 __skb_incr_checksum_unnecessary 174 - -174 Total: Before=25505928, After=25505870, chg -0.00% Link: https://lkml.kernel.org/r/20260117083448.3877418-1-edumazet@google.com Signed-off-by: Eric Dumazet Signed-off-by: Andrew Morton --- scripts/bloat-o-meter | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter index 888ce286a351e..db5dd18dc2d58 100755 --- a/scripts/bloat-o-meter +++ b/scripts/bloat-o-meter @@ -42,6 +42,7 @@ def getsizes(file, format): if name.startswith("__se_sys"): continue if name.startswith("__se_compat_sys"): continue if name.startswith("__addressable_"): continue + if name.startswith("__noinstr_text_start"): continue if name == "linux_banner": continue if name == "vermagic": continue # statics and some other optimizations adds random .NUMBER -- 2.47.3