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2019-11-03staging: exfat: Ensure we unlock upon error in ffsReadFileDavidlohr Bueso1-2/+4
The call was not releasing the mutex upon error. Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Acked-By: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191103180921.2844-1-dave@stgolabs.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-03staging: exfat: Fix logical operation continuationFrank A. Cancio Bello1-4/+4
Operators inside a multiline logical expression should be at the end of the line not at the beginning. This patch fixes two of those cases and remove an unnecessary parenthesis too, to comply in that way with the preferred coding style for the linux kernel. Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Frank A. Cancio Bello <frank@generalsoftwareinc.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Link: https://lore.kernel.org/r/ace2cbd5e4c03751fb522e7bbd60149e7ed969ae.1572666556.git.frank@generalsoftwareinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-03staging: exfat: Fix parameter alignment issuesFrank A. Cancio Bello1-2/+3
Fix alignment to match open parenthesis to comply in that way with the preferred coding style for the linux kernel. Issue found by checkpatch. Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Frank A. Cancio Bello <frank@generalsoftwareinc.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Link: https://lore.kernel.org/r/fe316e694ea9c4aa370d3a8166a3680feb342682.1572666556.git.frank@generalsoftwareinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-02drivers/staging/exfat: Replace more binary semaphores with mutexesDavidlohr Bueso1-24/+24
At a slight footprint cost (24 vs 32 bytes), mutexes are more optimal than semaphores; it's also a nicer interface for mutual exclusion, which is why they are encouraged over binary semaphores, when possible. There is also lockdep support. For both f_sem and b_sem, their semantics imply traditional lock ownership; that is, the lock owner is the same for both lock/unlock operations and not under irq contexts (ie for trylock/unlock scenarios). Therefore it is safe to convert. Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Link: https://lore.kernel.org/r/20191101185332.31786-1-dave@stgolabs.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-01staging: exfat: replace kmalloc with kmalloc_arrayRoi Martin1-4/+4
Replace expressions of the form: kmalloc(count * size, GFP_KERNEL); With: kmalloc_array(count, size, GFP_KERNEL); Signed-off-by: Roi Martin <jroi.martin@gmail.com> Link: https://lore.kernel.org/r/20191031123139.32361-1-jroi.martin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-01drivers/staging/exfat: Replace binary semaphores for mutexesDavidlohr Bueso2-43/+43
At a slight footprint cost (24 vs 32 bytes), mutexes are more optimal than semaphores; it's also a nicer interface for mutual exclusion, which is why they are encouraged over binary semaphores, when possible. For both v_sem and z_sem, their semantics imply traditional lock ownership; that is, the lock owner is the same for both lock/unlock operations. Therefore it is safe to convert. Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191030144916.10802-1-dave@stgolabs.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-30staging: exfat: avoid multiple assignmentsRoi Martin2-20/+73
Fix checkpatch.pl warning: CHECK: multiple assignments should be avoided Signed-off-by: Roi Martin <jroi.martin@gmail.com> Link: https://lore.kernel.org/r/20191030010328.10203-6-jroi.martin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-30staging: exfat: replace printk(KERN_INFO ...) with pr_info()Roi Martin1-1/+1
Fix checkpatch.pl warning: WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then pr_info(... to printk(KERN_INFO ... Signed-off-by: Roi Martin <jroi.martin@gmail.com> Link: https://lore.kernel.org/r/20191030010328.10203-5-jroi.martin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-30staging: exfat: remove unnecessary new line in if conditionRoi Martin1-2/+1
Fix checkpatch.pl warning: CHECK: Logical continuations should be on the previous line Signed-off-by: Roi Martin <jroi.martin@gmail.com> Link: https://lore.kernel.org/r/20191030010328.10203-4-jroi.martin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-30staging: exfat: make alignment match open parenthesisRoi Martin1-6/+6
Fix checkpatch.pl warning: CHECK: Alignment should match open parenthesis Signed-off-by: Roi Martin <jroi.martin@gmail.com> Link: https://lore.kernel.org/r/20191030010328.10203-3-jroi.martin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-30staging: exfat: remove unnecessary parenthesesRoi Martin2-34/+34
Fix checkpatch.pl warning: CHECK: Unnecessary parentheses around ... Signed-off-by: Roi Martin <jroi.martin@gmail.com> Link: https://lore.kernel.org/r/20191030010328.10203-2-jroi.martin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return code - FFS_MEMORYERRValdis Kletnieks2-6/+5
Convert FFS_MEMORYERR to -ENOMEM Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-9-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_INVALIDPATHValdis Kletnieks3-11/+10
Convert FFS_INVALIDPATH to -EINVAL Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-8-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_FILEEXISTValdis Kletnieks3-9/+8
Convert FFS_FILEEXIST to -EEXIST Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-7-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_NAMETOOLONGValdis Kletnieks2-3/+2
Convert FFS_NOTNAMETOOLONG to -ENAMETOOLONG Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-6-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_PERMISSIONERRValdis Kletnieks2-11/+10
Convert FFS_PERMISSIONERR to -EPERM Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-5-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_DIRBUSYValdis Kletnieks2-2/+1
Convert FFS_DIRBUSY to -EBUSY Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-4-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_NOTFOUNDValdis Kletnieks2-4/+3
Convert FFS_NOTFOUND to -ENOENT Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-3-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24staging: exfat: Clean up return codes - FFS_FULLValdis Kletnieks3-14/+13
Start cleaning up the odd scheme of return codes, starting with FFS_FULL Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Link: https://lore.kernel.org/r/20191024155327.1095907-2-Valdis.Kletnieks@vt.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-14Merge 5.4-rc3 into staging-nextGreg Kroah-Hartman9-11/+13
We want the staging driver fixes in here as well to build on and test with. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-04staging: exfat: Use kvzalloc() instead of kzalloc() for exfat_sb_infoJia-Ye Li1-2/+3
Fix mount failed "Cannot allocate memory". When the memory gets fragmented, kzalloc() might fail to allocate physically contiguous pages for the struct exfat_sb_info (its size is about 34KiB) even the total free memory is enough. Use kvzalloc() to solve this problem. Reviewed-by: Ethan Wu <ethanwu@synology.com> Signed-off-by: Jia-Ye Li <jiayeli@synology.com> Link: https://lore.kernel.org/r/20190925083729.4653-1-jiayeli@synology.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-04staging: exfat: explain the fs_sync() issue in TODOValdis Klētnieks1-0/+9
We've seen several incorrect patches for fs_sync() calls in the exfat driver. Add code to the TODO that explains this isn't just a delete code and refactor, but that actual analysis of when the filesystem should be flushed to disk needs to be done. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/9837.1570042895@turing-police Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-04staging: exfat: fix fs_sync() calls.Valdis Klētnieks1-17/+17
The majority of them were totally backwards. Change the logic so that if DELAYED_SYNC *isn't* in the config, we actually flush to disk before flagging the file system as clean. That leaves two calls in the DELAYED_SYNC case. More detailed analysis is needed to make sure that's what's really needed, or if other call sites also need a fs_sync() call. This patch is at least "less wrong" than the code was, but further changes should be another patch. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/11092.1570043784@turing-police Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-01staging: exfat: Fix a typo in KconfigMasanari Iida1-1/+1
This patch fix a spelling typo in Kconfig. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Link: https://lore.kernel.org/r/20190930130504.21994-1-standby24x7@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-01staging: exfat - fix SPDX tags..Valdis Klētnieks8-8/+8
The copyright notices as I got them said "GPLv2 or later", which I screwed up when putting in the SPDX tags. Fix them to match the license I got the code under. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/122590.1568853488@turing-police Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-01staging: exfat: add missing SPDX line to KconfigMichael Straube1-0/+1
Add SPDX identifier to Kconfig. Signed-off-by: Michael Straube <straube.linux@gmail.com> Link: https://lore.kernel.org/r/20190917190755.21723-1-straube.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-12staging: exfat: drop unused function parameterValentin Vidic1-12/+8
sbi parameter not used inside the function so remove it. Also cleanup unused variables generated by this change. Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190908173539.26963-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-12Staging: exfat: Avoid use of strcpySandro Volery1-3/+1
Use strscpy instead of strcpy in exfat_core.c, and add a check for length that will return already known FFS_INVALIDPATH. Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Sandro Volery <sandro@volery.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20190912082559.GA5043@volery Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-12staging: exfat: use integer constantsValentin Vidic2-13/+13
Replace manually generated values with predefined constants. Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190908152616.25459-3-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-12staging: exfat: cleanup spacing for castsValentin Vidic2-77/+77
Fix checkpatch.pl warnings: CHECK: No space is necessary after a cast Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190908152616.25459-2-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-12staging: exfat: cleanup spacing for operatorsValentin Vidic3-61/+61
Fixes checkpatch.pl warnings: CHECK: spaces preferred around that '-' (ctx:VxV) CHECK: spaces preferred around that '+' (ctx:VxV) CHECK: spaces preferred around that '*' (ctx:VxV) CHECK: spaces preferred around that '|' (ctx:VxV) Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190908152616.25459-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-06staging: exfat: stop using 32-bit time_tArnd Bergmann1-126/+38
time_t suffers from overflow problems and should not be used. In exfat, it is currently used in two open-coded time64_to_tm() implementations. Changes those to use the existing function instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20190906150917.1025250-2-arnd@arndb.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-06staging: exfat: stopusing CONFIG_FAT_DEFAULT_IOCHARSETArnd Bergmann1-5/+2
When CONFIG_VFAT_FS is disabled, the reference to CONFIG_FAT_DEFAULT_IOCHARSET causes a link failure: drivers/staging/exfat/exfat_super.c:46:41: error: use of undeclared identifier 'CONFIG_FAT_DEFAULT_IOCHARSET' static char exfat_default_iocharset[] = CONFIG_FAT_DEFAULT_IOCHARSET; I could not figure out why the correct code is commented out, but using that fixes the problem. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20190906150917.1025250-1-arnd@arndb.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-05staging: exfat: Use kmemdup in exfat_symlink()YueHaibing1-2/+1
Use kmemdup rather than duplicating its implementation Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190905030047.88401-1-yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-05staging: exfat: remove unused including <linux/version.h>YueHaibing1-1/+0
Remove including <linux/version.h> that don't need it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190905025623.63210-1-yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-05staging: exfat: remove duplicated include from exfat_super.cYueHaibing1-1/+0
Remove duplicated include. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190905025608.61884-1-yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-04staging: exfat: remove the redundant check when kfree an object in ↵zhong jiang1-2/+1
exfat_destroy_inode kfree has taken the null check in account. hence it is unnecessary to add the null check before kfree the object. Just remove it. Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: zhong jiang <zhongjiang@huawei.com> Link: https://lore.kernel.org/r/1567591408-24268-1-git-send-email-zhongjiang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-04staging: exfat: Fix two missing unlocks on error pathsDan Carpenter1-2/+4
These two error paths need to unlock before we can return. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20190904095908.GA7007@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-04staging: exfat: cleanup explicit comparisons to NULLValentin Vidic2-46/+46
Fixes checkpatch.pl warnings: CHECK: Comparison to NULL could be written "expr" CHECK: Comparison to NULL could be written "!expr" Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190903205659.18856-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: drop local TRUE/FALSE definesValentin Vidic4-51/+53
Replace with bool where it makes sense. Also drop unused local variable lossy in fat_find_dir_entry. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190903185537.25099-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: fix spelling errors in commentsValentin Vidic2-2/+2
Fixes checkpatch.pl warnings: CHECK: 'consistancy' may be misspelled - perhaps 'consistency'? CHECK: 'stuct' may be misspelled - perhaps 'struct'? Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190903165408.16010-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: cleanup braces for if/else statementsValentin Vidic2-13/+15
Fixes checkpatch.pl warnings: CHECK: Unbalanced braces around else statement CHECK: braces {} should be used on all arms of this statement Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190903164732.14194-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: check for null return from call to FAT_getblkColin Ian King1-0/+2
A call to FAT_getblk is missing a null return check which can lead to a null pointer dereference. Fix this by adding a null check to match all the other FAT_getblk return sanity checks. Addresses-Coverity: ("Dereference null return") Fixes: c48c9f7ff32b ("staging: exfat: add exfat filesystem code to staging") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20190830175050.12706-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: remove return and error return via a gotoColin Ian King1-1/+1
The return statement is incorrect, the error exit should be by assigning ret with the error code and exiting via label out. Thanks to Valdis Klētnieks for correcting my original fix. Addresses-Coverity: ("Structurally dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20190902094052.28029-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: fix uninitialized variable retColin Ian King1-1/+1
Currently there are error return paths in ffsReadFile that exit via lable err_out that return and uninitialized error return in variable ret. Fix this by initializing ret to zero. Addresses-Coverity: ("Uninitialized scalar variable") Fixes: c48c9f7ff32b ("staging: exfat: add exfat filesystem code to staging") Signed-off-by: Colin Ian King <colin.king@canonical.com> Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>, Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Link: https://lore.kernel.org/r/20190830184644.15590-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: use BIT macro for defining sizesValentin Vidic1-3/+3
Fixes checkpatch.pl warning: CHECK: Prefer using the BIT macro Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190902184319.11971-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03staging: exfat: cleanup blank line warningsValentin Vidic3-5/+1
Fixes checkpatch.pl warnings: CHECK: Please don't use multiple blank lines CHECK: Blank lines aren't necessary after an open brace '{' CHECK: Please use a blank line after function/struct/union/enum declarations Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Link: https://lore.kernel.org/r/20190902190329.18685-1-vvidic@valentin-vidic.from.hr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-02staging: exfat: make exfat depend on BLOCKGreg Kroah-Hartman1-0/+2
This should fix a build error in some configurations when CONFIG_BLOCK is not selected. Also properly set the dependancy for no FAT support at the same time. Reported-by: Randy Dunlap <rdunlap@infradead.org> Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/20190902174631.GB31445@kroah.com Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-02drivers/staging/exfat - by default, prohibit mount of fat/vfatValdis Klētnieks2-0/+14
Concerns have been raised about the exfat driver accidentally mounting fat/vfat file systems. Add an extra configure option to help prevent that. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Link: https://lore.kernel.org/r/245727.1567183359@turing-police Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-30staging: exfat: add exfat filesystem code to stagingValdis Klētnieks10-0/+10877
The exfat code needs a lot of work to get it into "real" shape for the fs/ part of the kernel, so put it into drivers/staging/ for now so that it can be worked on by everyone in the community. The full specification of the filesystem can be found at: https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20190828160817.6250-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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