Re: [PATCH 05/11] UAPI: coda: Don't use internal kernel structs in UAPI
From: Yann Droneaud <hidden>
Date: 2018-09-06 16:27:48
Also in:
linux-api, linux-fsdevel, linux-kbuild
From: Yann Droneaud <hidden>
Date: 2018-09-06 16:27:48
Also in:
linux-api, linux-fsdevel, linux-kbuild
Hi, Le jeudi 06 septembre 2018 à 08:13 +0100, David Howells a écrit :
Yann Droneaud [off-list ref] wrote:quoted
This structure should not have been exposed to userspace in the first place: it's unusable by userspace as it is. It was incorrect to have it outside of #ifdef __KERNEL__ before commit 607ca46e97a1b ... ... All CODA_REQ_* defines internals to kernel side and not exchanged with userspace. Please move them back to <linux/coda_psdev.h>Is there any reason coda_psdev.h needs to be in include/linux/ rather than fs/coda/?
It's a valid concern. At first I thought the first lines (see below) could have been useful for userspace: #define CODA_PSDEV_MAJOR 67 #define MAX_CODADEVS 5 /* how many do we allow */ But the file was unsuable for a long long time so we can assume it's usage by userspace is deprecated, then we could remove it from UAPI, and moves its content back to include/linux. As one could see include/linux/coda_psdev.h is not used outside of fs/coda, moving the header here as you suggests seems to be the correct solution. Regards. -- Yann Droneaud OPTEYA