netdev - Re: [PATCH net-next v1 4/4] kernel/module: Hide vermagic header file from general use

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Message-ID: <20200417111205.GB2582@linux-8ccs>
Date:   Fri, 17 Apr 2020 13:12:05 +0200
From:   Jessica Yu <jeyu@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Leon Romanovsky <leonro@...lanox.com>,
        Borislav Petkov <bp@...e.de>, linux-kbuild@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v1 4/4] kernel/module: Hide vermagic header file
 from general use

+++ Leon Romanovsky [15/04/20 16:36 +0300]:
>From: Leon Romanovsky <leonro@...lanox.com>
>
>VERMAGIC* definitions are not supposed to be used by the drivers,
>see this [1] bug report, so simply move this header file to be visible
>to kernel/* and scripts files only.
>
>In-tree module build:
>➜  kernel git:(vermagic) ✗ make clean
>➜  kernel git:(vermagic) ✗ make M=drivers/infiniband/hw/mlx5
>➜  kernel git:(vermagic) ✗ modinfo drivers/infiniband/hw/mlx5/mlx5_ib.ko
>filename:	/images/leonro/src/kernel/drivers/infiniband/hw/mlx5/mlx5_ib.ko
><...>
>vermagic:       5.6.0+ SMP mod_unload modversions
>
>Out-of-tree module build:
>➜  mlx5 make -C /images/leonro/src/kernel clean M=/tmp/mlx5
>➜  mlx5 make -C /images/leonro/src/kernel M=/tmp/mlx5
>➜  mlx5 modinfo /tmp/mlx5/mlx5_ib.ko
>filename:       /tmp/mlx5/mlx5_ib.ko
><...>
>vermagic:       5.6.0+ SMP mod_unload modversions
>
>[1] https://lore.kernel.org/lkml/20200411155623.GA22175@zn.tnic
>Reported-by: Borislav Petkov <bp@...e.de>
>Acked-by: Borislav Petkov <bp@...e.de>
>Signed-off-by: Leon Romanovsky <leonro@...lanox.com>

Acked-by: Jessica Yu <jeyu@...nel.org>