linux-kernel - RE: [PATCH 1/1] hexagon: Don't select GENERIC_IOMAP without HAS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Wed, 3 Apr 2024 14:51:17 +0000
From: Brian Cain <bcain@...cinc.com>
To: Niklas Schnelle <schnelle@...ux.ibm.com>
CC: "linux-hexagon@...r.kernel.org" <linux-hexagon@...r.kernel.org>,
        Arnd
 Bergmann <arnd@...nel.org>, Heiko Carstens <hca@...ux.ibm.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/1] hexagon: Don't select GENERIC_IOMAP without
 HAS_IOPORT support



> -----Original Message-----
> From: Niklas Schnelle <schnelle@...ux.ibm.com>
> Sent: Wednesday, April 3, 2024 8:25 AM
> To: Brian Cain <bcain@...cinc.com>
> Cc: linux-hexagon@...r.kernel.org; Arnd Bergmann <arnd@...nel.org>;
> Heiko Carstens <hca@...ux.ibm.com>; linux-kernel@...r.kernel.org; Niklas
> Schnelle <schnelle@...ux.ibm.com>
> Subject: [PATCH 1/1] hexagon: Don't select GENERIC_IOMAP without
> HAS_IOPORT support
> 
> WARNING: This email originated from outside of Qualcomm. Please be wary
> of any links or attachments, and do not enable macros.
> 
> In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
> compile time. As hexagon does not support I/O port access it also
> the GENERIC_IOMAP mechanism of dynamically choosing between I/O port
> and
> MMIO access doesn't work so don't select it.
> 
> Co-developed-by: Arnd Bergmann <arnd@...nel.org>
> Signed-off-by: Arnd Bergmann <arnd@...nel.org>
> Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com>
> ---
>  arch/hexagon/Kconfig | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
> index e233b5efa276..5ea1bf4b7d4f 100644
> --- a/arch/hexagon/Kconfig
> +++ b/arch/hexagon/Kconfig
> @@ -31,7 +31,6 @@ config HEXAGON
>         select HAVE_ARCH_TRACEHOOK
>         select NEED_SG_DMA_LENGTH
>         select NO_IOPORT_MAP
> -       select GENERIC_IOMAP
>         select GENERIC_IOREMAP
>         select GENERIC_SMP_IDLE_THREAD
>         select STACKTRACE_SUPPORT

Reviewed-by: Brian Cain <bcain@...cinc.com>

> --
> 2.40.1