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block: scsi_ioctl: Avoid the use of one-element arrays

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One-element arrays are being deprecated[1]. Replace the one-element array
with a simple object of type compat_caddr_t: 'compat_caddr_t unused'[2],
once it seems this field is actually never used.

Also, update struct cdrom_generic_command in UAPI by adding an
anonimous union to avoid using the one-element array _reserved_.

[1] https://www.kernel.org/doc/html/v5.9-rc1/process/deprecated.html#zero-length-and-one-element-arrays
[2] https://github.com/KSPP/linux/issues/86

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/lkml/5f76f5d0.qJ4t%2FHWuRzSW7bTa%25lkp@intel.com/
Build-tested-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Gustavo A. R. Silva
2020-10-02 18:10:33 -05:00
committed by Jens Axboe
parent 99ba84c5de
commit f5ace5ef37
2 changed files with 7 additions and 4 deletions
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5
include/uapi/linux/cdrom.h
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@@ -289,7 +289,10 @@ struct cdrom_generic_command
unsigned char data_direction;
int quiet;
int timeout;
void __user *reserved[1]; /* unused, actually */
union {
void __user *reserved[1]; /* unused, actually */
void __user *unused;
};
};
/*