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authorEric W. Biederman <ebiederm@xmission.com>2021-10-20 19:43:48 +0200
committerEric W. Biederman <ebiederm@xmission.com>2021-10-20 20:09:47 +0200
commit9fd5a04d8efcbf511286dd36c46fd70a645b167d (patch)
treea6e7a564761a942a59f794a3cf6d8f8320f67358 /arch/openrisc
parentexit/doublefault: Remove apparently bogus comment about rewind_stack_do_exit (diff)
downloadlinux-9fd5a04d8efcbf511286dd36c46fd70a645b167d.tar.xz
linux-9fd5a04d8efcbf511286dd36c46fd70a645b167d.zip
exit: Remove calls of do_exit after noreturn versions of die
On nds32, openrisc, s390, sh, and xtensa the function die never returns. Mark die __noreturn so that no one expects die to return. Remove the do_exit calls after die as they will never be reached. Cc: Jonas Bonn <jonas@southpole.se> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Stafford Horne <shorne@gmail.com> Cc: openrisc@lists.librecores.org Cc: Nick Hu <nickhu@andestech.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: linux-s390@vger.kernel.org Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: linux-sh@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Fixes: 2.3.16 Fixes: 2.3.99-pre8 Fixes: 3f65ce4d141e ("[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 5") Fixes: 664eec400bf8 ("nds32: MMU fault handling and page table management") Fixes: 61e85e367535 ("OpenRISC: Memory management") Link: https://lkml.kernel.org/r/20211020174406.17889-2-ebiederm@xmission.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'arch/openrisc')
-rw-r--r--arch/openrisc/kernel/traps.c2
-rw-r--r--arch/openrisc/mm/fault.c4
2 files changed, 2 insertions, 4 deletions
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index aa1e709405ac..0898cb159fac 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -197,7 +197,7 @@ void nommu_dump_state(struct pt_regs *regs,
}
/* This is normally the 'Oops' routine */
-void die(const char *str, struct pt_regs *regs, long err)
+void __noreturn die(const char *str, struct pt_regs *regs, long err)
{
console_verbose();
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index c730d1a51686..f0fa6394a58e 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -32,7 +32,7 @@ unsigned long pte_errors; /* updated by do_page_fault() */
*/
volatile pgd_t *current_pgd[NR_CPUS];
-extern void die(char *, struct pt_regs *, long);
+extern void __noreturn die(char *, struct pt_regs *, long);
/*
* This routine handles page faults. It determines the address,
@@ -248,8 +248,6 @@ no_context:
die("Oops", regs, write_acc);
- do_exit(SIGKILL);
-
/*
* We ran out of memory, or some other thing happened to us that made
* us unable to handle the page fault gracefully.