diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-01-17 15:23:57 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-02-23 14:31:40 +0300 |
| commit | 7306e83ccf5ce3a324546d274945ec1981d78f9a (patch) | |
| tree | e9b79fe5ad8d91ee2d166bde5c9b3b60835eb560 /arch | |
| parent | 1e35f29c6b2eba72521d6f3c38f9c86f331cfd0a (diff) | |
| download | linux-7306e83ccf5ce3a324546d274945ec1981d78f9a.tar.xz | |
powerpc: Don't use CURRENT_THREAD_INFO to find the stack
A few places use CURRENT_THREAD_INFO, or the C version, to find the
stack. This will no longer work with THREAD_INFO_IN_TASK so change
them to find the stack in other ways.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index c17c1bed6148..21f1cb4d464e 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -689,7 +689,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) 2: #endif /* CONFIG_PPC_BOOK3S_64 */ - CURRENT_THREAD_INFO(r7, r8) /* base of new stack */ + clrrdi r7, r8, THREAD_SHIFT /* base of new stack */ /* Note: this uses SWITCH_FRAME_SIZE rather than INT_FRAME_SIZE because we don't need to leave the 288-byte ABI gap at the top of the kernel stack. */ diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 4a5dd8800946..531e9ef153c0 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -663,7 +663,7 @@ void do_IRQ(struct pt_regs *regs) struct thread_info *curtp, *irqtp, *sirqtp; /* Switch to the irq stack to handle this */ - curtp = current_thread_info(); + curtp = (void *)(current_stack_pointer() & ~(THREAD_SIZE - 1)); irqtp = hardirq_ctx[raw_smp_processor_id()]; sirqtp = softirq_ctx[raw_smp_processor_id()]; diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 242f0c88010e..b37b50fde828 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -603,7 +603,7 @@ EXPORT_SYMBOL(__bswapdi2) #ifdef CONFIG_SMP _GLOBAL(start_secondary_resume) /* Reset stack */ - CURRENT_THREAD_INFO(r1, r1) + rlwinm r1, r1, 0, 0, 31 - THREAD_SHIFT addi r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD li r3,0 stw r3,0(r1) /* Zero the stack frame pointer */ |