coredump: mark struct mm_struct as const

brauner · brauner · commit 313a335057f0 · 2025-11-05T23:11:51.000+01:00
We don't actually modify it. Link: https://patch.msgid.link/20251103-work-creds-guards-prepare_creds-v1-7-b447b82f2c9b@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
diff --git a/fs/coredump.c b/fs/coredump.c
@@ -1092,7 +1092,7 @@ void vfs_coredump(const kernel_siginfo_t *siginfo)
 	size_t *argv __free(kfree) = NULL;
 	struct core_state core_state;
 	struct core_name cn;
-	struct mm_struct *mm = current->mm;
+	const struct mm_struct *mm = current->mm;
 	const struct linux_binfmt *binfmt = mm->binfmt;
 	const struct cred *old_cred;
 	int argc = 0;
diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
@@ -8,7 +8,7 @@
 #define SUID_DUMP_USER		1	/* Dump as user of process */
 #define SUID_DUMP_ROOT		2	/* Dump as root */
 
-static inline unsigned long __mm_flags_get_dumpable(struct mm_struct *mm)
+static inline unsigned long __mm_flags_get_dumpable(const struct mm_struct *mm)
 {
 	/*
 	 * By convention, dumpable bits are contained in first 32 bits of the

Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,7 @@`
`8`	`8`	`#define SUID_DUMP_USER 1 /* Dump as user of process */`
`9`	`9`	`#define SUID_DUMP_ROOT 2 /* Dump as root */`
`10`	`10`
`11`		`-static inline unsigned long __mm_flags_get_dumpable(struct mm_struct *mm)`
	`11`	`+static inline unsigned long __mm_flags_get_dumpable(const struct mm_struct *mm)`
`12`	`12`	`{`
`13`	`13`	`/*`
`14`	`14`	`* By convention, dumpable bits are contained in first 32 bits of the`