forked from luck/tmp_suning_uos_patched
02683ffdf6
mmap() doesn't work as expected for UIO_MEM_LOGICAL or UIO_MEM_VIRTUAL mappings. The offset into the memory needs to be added, otherwise uio_vma_fault always returns the first page only. Note that for UIO userspace calls mmap() with offset = N * getpagesize() to access mapping N. This must be compensated when calculating the offset. A comment was added to explain this since it is not obvious. Signed-off-by: Andrew G. Harvey <agh@cisco.com> Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| uio_cif.c | ||
| uio_pdrv_genirq.c | ||
| uio_pdrv.c | ||
| uio_sercos3.c | ||
| uio_smx.c | ||
| uio.c | ||