From mboxrd@z Thu Jan 1 00:00:00 1970 From: lauraa@codeaurora.org (Laura Abbott) Date: Mon, 2 Jun 2014 13:57:36 -0700 Subject: [PATCHv2 2/4] arm64: Treat handle_arch_irq as a function pointer In-Reply-To: <1401742658-11841-1-git-send-email-lauraa@codeaurora.org> References: <1401742658-11841-1-git-send-email-lauraa@codeaurora.org> Message-ID: <1401742658-11841-3-git-send-email-lauraa@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org handle_arch_irq isn't actually text, it's just a function pointer. It doesn't need to be stored in the text section and doing so causes problems if we ever want to make the kernel text readonly. Move it to the data section. Signed-off-by: Laura Abbott --- arch/arm64/kernel/entry.S | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 39ac630..7c8ea1f 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -139,7 +139,8 @@ tsk .req x28 // current thread_info * Interrupt handling. */ .macro irq_handler - ldr x1, handle_arch_irq + ldr x1, =handle_arch_irq + ldr x1, [x1] mov x0, sp blr x1 .endm @@ -678,5 +679,8 @@ ENTRY(sys_rt_sigreturn_wrapper) b sys_rt_sigreturn ENDPROC(sys_rt_sigreturn_wrapper) -ENTRY(handle_arch_irq) + .data + .globl handle_arch_irq + .align 4 +handle_arch_irq: .quad 0 -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation