[tip: objtool/core] objtool/klp: Fix line numbers in Module.symvers parse errors

["tip-bot2 for Josh Poimboeuf" <tip-bot2@linutronix.de>]

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     51c1de13486315ad46a74b40ec17124916a08277
Gitweb:        https://git.kernel.org/tip/51c1de13486315ad46a74b40ec17124916a08277
Author:        Josh Poimboeuf <jpoimboe@kernel.org>
AuthorDate:    Fri, 07 Aug 2026 14:37:54 -07:00
Committer:     Josh Poimboeuf <jpoimboe@kernel.org>
CommitterDate: Tue, 11 Aug 2026 16:10:58 -07:00

objtool/klp: Fix line numbers in Module.symvers parse errors

read_exports() reports the offending line number when it fails to parse
Module.symvers.  The counter is initialized to 1 but never incremented,
so every error blames line 1 regardless of where the bad line is.

Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Song Liu <song@kernel.org>
Link: https://patch.msgid.link/133e16bb0c7cb916f10bbfb017eba525449ad1d6.1786138493.git.jpoimboe@kernel.org
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
 tools/objtool/klp-diff.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/objtool/klp-diff.c b/tools/objtool/klp-diff.c
index 1f05646..cdc63ab 100644
--- a/tools/objtool/klp-diff.c
+++ b/tools/objtool/klp-diff.c
@@ -118,7 +118,7 @@ static int read_exports(void)
 {
 	const char *symvers = "Module.symvers";
 	char line[1024], *path = NULL;
-	unsigned int line_num = 1;
+	unsigned int line_num = 0;
 	FILE *file;
 
 	file = fopen(symvers, "r");
@@ -140,6 +140,8 @@ static int read_exports(void)
 		char *sym, *mod, *type, *namespace;
 		struct export *export;
 
+		line_num++;
+
 		sym = strchr(line, '\t');
 		if (!sym) {
 			ERROR("malformed Module.symvers (sym) at line %d", line_num);