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Enable to mount Raspberry Pi Pico's USB mass storage partition 

Fix PR kern/55985.
O.k. by thorpej@.

Pull-up to netbsd-8 and netbsd-9.
This commit is contained in:
ryoon 2021-02-11 00:15:55 +00:00
parent 45516a99e8
commit 28390de185
1 changed files with 10 additions and 2 deletions
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12
sys/fs/msdosfs/msdosfs_vfsops.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: msdosfs_vfsops.c,v 1.135 2020/04/13 19:23:17 ad Exp $ */
/* $NetBSD: msdosfs_vfsops.c,v 1.136 2021/02/11 00:15:55 ryoon Exp $ */
/*-
* Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
@ -48,7 +48,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: msdosfs_vfsops.c,v 1.135 2020/04/13 19:23:17 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: msdosfs_vfsops.c,v 1.136 2021/02/11 00:15:55 ryoon Exp $");
#if defined(_KERNEL_OPT)
#include "opt_compat_netbsd.h"
@ -520,6 +520,13 @@ msdosfs_mountfs(struct vnode *devvp, struct mount *mp, struct lwp *l, struct msd
b50 = (struct byte_bpb50 *)bsp->bs50.bsBPB;
b710 = (struct byte_bpb710 *)bsp->bs710.bsBPB;
#if 0
/*
* Some FAT partition, for example Raspberry Pi Pico's
* USB mass storage, does not have exptected BOOTSIGs.
* According to FreeBSD's comment, some PC-9800/9821
* FAT floppy disks have similar problems.
*/
if (!(argp->flags & MSDOSFSMNT_GEMDOSFS)) {
if (bsp->bs50.bsBootSectSig0 != BOOTSIG0
|| bsp->bs50.bsBootSectSig1 != BOOTSIG1) {
@ -530,6 +537,7 @@ msdosfs_mountfs(struct vnode *devvp, struct mount *mp, struct lwp *l, struct msd
goto error_exit;
}
}
#endif
pmp = malloc(sizeof(*pmp), M_MSDOSFSMNT, M_WAITOK|M_ZERO);
pmp->pm_mountp = mp;