Palmer Dabbelt <palmer@rivosinc.com> says:
This contains a pair of cleanups that depend on a fix that has already
landed upstream.
* b4-shazam-merge:
RISC-V: Add some comments about the shadow and overflow stacks
RISC-V: Align the shadow stack
riscv: fix race when vmap stack overflow
Link: https://lore.kernel.org/r/20221130023515.20217-1-palmer@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
}
#endif /* CONFIG_GENERIC_BUG */
-/* stvec & scratch is already set from head.S */
-void __init trap_init(void)
-{
-}
-
#ifdef CONFIG_VMAP_STACK
+ /*
+ * Extra stack space that allows us to provide panic messages when the kernel
+ * has overflowed its stack.
+ */
static DEFINE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)],
overflow_stack)__aligned(16);
/*