On 6/18/2019 8:42 PM, Srinivas Kandagatla wrote: > > > On 18/06/2019 15:56, Sricharan R wrote: >> So MAX_DESCRIPTORS is used in driver for masking head/tail pointers. >> That's why we have to pass MAX_DESCRIPTORS + 1 so that it works >> when the Macros does a size - 1 > Isn't that incorrect to do that, pretending to have more descriptors than we actually have? > The Macro's expect that buffer size is power of 2. So we are infact passing the actual correct size ( MAX_DESCRIPTORS + 1 = 4096) Regards, Sricharan -- "QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
