Re: [PATCH v3] ARM: imx: Fix suspend/resume crash with Clang CFI

Sami Tolvanen <[email protected]> Mon, 20 Jul 2026 12:29:20 -0700

Newsgroups	dev.linux.lists.llvm,dev.linux.lists.imx,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.stable
Message-ID	<CABCJKudqGL+BFFcz3qsuoJB6S_OAt-vs2yqePC_=oy+JzmPpVw@mail.gmail.com>

On Sat, Jul 18, 2026 at 4:14 AM Yo'av Moshe <[email protected]> wrote:
>
> Relocated suspend code in OCRAM lacks compiler-generated CFI type
> signatures. When CONFIG_CFI=y is active, the indirect call to
> imx6_suspend_in_ocram_fn triggers a strict CFI violation panic.

Would it be possible to just copy the 4-byte CFI hash prefix to OCRAM
when relocating the function? If not, the __nocfi approach seems
reasonable to me.

Sami