On 64-bit platfoms /dev/mem should have the size of 2^64 bytes, not 2^63 which would result from using S64_MAX. This also has a side effect of setting "size" in FILE to FILE_SIZE_STREAM, disabling a number of codepaths that are not applicable to /dev/mem anyway (see __read() and __write()). Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> --- drivers/misc/mem.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/misc/mem.c b/drivers/misc/mem.c index b27865b9e..89ec920b2 100644 --- a/drivers/misc/mem.c +++ b/drivers/misc/mem.c @@ -23,8 +23,7 @@ static int mem_probe(struct device_d *dev) cdev->flags = DEVFS_UNBOUNDED; cdev->name = (char*)dev->resource[0].name; - cdev->size = min_t(unsigned long long, resource_size(&dev->resource[0]), - S64_MAX); + cdev->size = resource_size(&dev->resource[0]); cdev->ops = &memops; cdev->dev = dev; -- 2.20.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
