Don't error out if the dasd_biodasdinfo symbol is not available. Cc: stable@vger.kernel.org Fixes: 26d7e28e3820 ("s390/dasd: remove ioctl_by_bdev calls") Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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