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authorMax Filippov <jcmvbkbc@gmail.com>2022-04-17 11:41:13 +0200
committerMax Filippov <jcmvbkbc@gmail.com>2022-05-02 04:51:21 +0200
commit4b81690980d45c4972d97facf11b65918e232fd5 (patch)
tree6afde0abc2c8e0eb78cd5deaed95497e18c9b566 /arch/xtensa/kernel
parentxtensa: noMMU: allow handling protection faults (diff)
downloadlinux-4b81690980d45c4972d97facf11b65918e232fd5.tar.xz
linux-4b81690980d45c4972d97facf11b65918e232fd5.zip
xtensa: drop dead code from entry.S
KERNEL_STACK_OVERFLOW_CHECK is incomplete and have never been enabled. Remove it. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/kernel')
-rw-r--r--arch/xtensa/kernel/entry.S18
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 6b6eff658795..3c0b1aac7aba 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -28,15 +28,6 @@
#include <asm/tlbflush.h>
#include <variant/tie-asm.h>
-/* Unimplemented features. */
-
-#undef KERNEL_STACK_OVERFLOW_CHECK
-
-/* Not well tested.
- *
- * - fast_coprocessor
- */
-
/*
* Macro to find first bit set in WINDOWBASE from the left + 1
*
@@ -350,15 +341,6 @@ KABI_W _bbsi.l a2, 3, 1f
l32i a0, a1, PT_AREG0 # restore saved a0
wsr a0, depc
-#ifdef KERNEL_STACK_OVERFLOW_CHECK
-
- /* Stack overflow check, for debugging */
- extui a2, a1, TASK_SIZE_BITS,XX
- movi a3, SIZE??
- _bge a2, a3, out_of_stack_panic
-
-#endif
-
/*
* This is the common exception handler.
* We get here from the user exception handler or simply by falling through