linux-kernel - [PATCH RT 1/3] lib/ubsan: Remove flags parameter from calls to ubsan_prologue() and ubsan

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Date:   Tue, 31 Mar 2020 12:34:54 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org,
        linux-rt-users <linux-rt-users@...r.kernel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Carsten Emde <C.Emde@...dl.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        John Kacur <jkacur@...hat.com>,
        Julia Cartwright <julia@...com>,
        Daniel Wagner <wagi@...om.org>,
        Tom Zanussi <zanussi@...nel.org>,
        "Srivatsa S. Bhat" <srivatsa@...il.mit.edu>,
        Tiejun Chen <tiejunc@...are.com>
Subject: [PATCH RT 1/3] lib/ubsan: Remove flags parameter from calls to ubsan_prologue() and
 ubsan_epilogue()

4.19.106-rt46-rc1 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Tiejun Chen <tiejunc@...are.com>

Fails to build with CONFIG_UBSAN=y

lib/ubsan.c: In function '__ubsan_handle_vla_bound_not_positive':
lib/ubsan.c:348:2: error: too many arguments to function 'ubsan_prologue'
  ubsan_prologue(&data->location, &flags);
  ^~~~~~~~~~~~~~
lib/ubsan.c:146:13: note: declared here
 static void ubsan_prologue(struct source_location *location)
             ^~~~~~~~~~~~~~
lib/ubsan.c:353:2: error: too many arguments to function 'ubsan_epilogue'
  ubsan_epilogue(&flags);
  ^~~~~~~~~~~~~~
lib/ubsan.c:155:13: note: declared here
 static void ubsan_epilogue(void)
             ^~~~~~~~~~~~~~

Signed-off-by: Tiejun Chen <tiejunc@...are.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
---
 lib/ubsan.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/ubsan.c b/lib/ubsan.c
index 5830cc9a2164..199c75e03469 100644
--- a/lib/ubsan.c
+++ b/lib/ubsan.c
@@ -339,18 +339,17 @@ EXPORT_SYMBOL(__ubsan_handle_type_mismatch_v1);
 void __ubsan_handle_vla_bound_not_positive(struct vla_bound_data *data,
 					void *bound)
 {
-	unsigned long flags;
 	char bound_str[VALUE_LENGTH];
 
 	if (suppress_report(&data->location))
 		return;
 
-	ubsan_prologue(&data->location, &flags);
+	ubsan_prologue(&data->location);
 
 	val_to_string(bound_str, sizeof(bound_str), data->type, bound);
 	pr_err("variable length array bound value %s <= 0\n", bound_str);
 
-	ubsan_epilogue(&flags);
+	ubsan_epilogue();
 }
 EXPORT_SYMBOL(__ubsan_handle_vla_bound_not_positive);
 
-- 
2.25.1