From: Greg KH <gregkh@linuxfoundation.org>
To: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
arnd@arndb.de, smohanad@codeaurora.org, kvalo@codeaurora.org,
bjorn.andersson@linaro.org, hemantk@codeaurora.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 02/16] bus: mhi: core: Add support for registering MHI controllers
Date: Fri, 24 Jan 2020 18:47:07 +0100 [thread overview]
Message-ID: <20200124174707.GB3417153@kroah.com> (raw)
In-Reply-To: <42c79181-9d97-3542-c6b0-1e37f9b2ff39@codeaurora.org>
On Fri, Jan 24, 2020 at 07:24:43AM -0700, Jeffrey Hugo wrote:
> > > +/**
> > > + * struct mhi_result - Completed buffer information
> > > + * @buf_addr: Address of data buffer
> > > + * @dir: Channel direction
> > > + * @bytes_xfer: # of bytes transferred
> > > + * @transaction_status: Status of last transaction
> > > + */
> > > +struct mhi_result {
> > > + void *buf_addr;
> >
> > Why void *?
>
> Because its not possible to resolve this more clearly. The client provides
> the buffer and knows what the structure is. The bus does not. Its just an
> opaque pointer (hence void *) to the bus, and the client needs to decode it.
> This is the struct that is handed to the client to allow them to decode the
> activity (either a received buf, or a confirmation that a transmitted buf
> has been consumed).
Then shouldn't this be a "u8 *" instead as you are saying how many bytes
are here?
thanks,
greg k-h
next prev parent reply other threads:[~2020-01-24 17:51 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-23 11:18 [PATCH 00/16] Add MHI bus support Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 01/16] docs: Add documentation for MHI bus Manivannan Sadhasivam
2020-01-23 12:58 ` Arnd Bergmann
2020-01-23 13:10 ` Manivannan Sadhasivam
2020-01-23 13:19 ` Arnd Bergmann
2020-01-23 13:30 ` Manivannan Sadhasivam
2020-01-23 14:52 ` Jeffrey Hugo
2020-01-23 16:41 ` Jeffrey Hugo
2020-01-27 12:02 ` Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 02/16] bus: mhi: core: Add support for registering MHI controllers Manivannan Sadhasivam
2020-01-23 11:33 ` Greg KH
2020-01-23 11:56 ` Manivannan Sadhasivam
2020-01-23 17:05 ` Jeffrey Hugo
2020-01-23 18:14 ` Greg KH
2020-01-26 23:58 ` Jeffrey Hugo
2020-01-28 7:19 ` Manivannan Sadhasivam
2020-01-27 11:56 ` Manivannan Sadhasivam
2020-01-27 14:52 ` Jeffrey Hugo
2020-01-28 6:37 ` Manivannan Sadhasivam
2020-01-28 7:24 ` Greg KH
2020-01-28 7:27 ` Manivannan Sadhasivam
2020-01-24 8:29 ` Greg KH
2020-01-24 14:24 ` Jeffrey Hugo
2020-01-24 17:47 ` Greg KH [this message]
2020-01-24 18:12 ` Jeffrey Hugo
2020-01-25 13:26 ` Greg KH
2020-01-26 21:00 ` Jeffrey Hugo
2020-01-27 7:02 ` Manivannan Sadhasivam
2020-01-27 7:11 ` Greg KH
2020-01-23 11:18 ` [PATCH 03/16] bus: mhi: core: Add support for registering MHI client drivers Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 04/16] bus: mhi: core: Add support for creating and destroying MHI devices Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 05/16] bus: mhi: core: Add support for ringing channel/event ring doorbells Manivannan Sadhasivam
2020-01-23 11:39 ` Arnd Bergmann
2020-01-23 12:00 ` Manivannan Sadhasivam
2020-01-23 12:44 ` Arnd Bergmann
2020-01-23 13:01 ` Manivannan Sadhasivam
2020-01-23 14:44 ` Jeffrey Hugo
2020-01-24 22:51 ` Jeffrey Hugo
2020-01-25 13:46 ` Greg KH
2020-01-27 7:10 ` Manivannan Sadhasivam
2020-01-27 7:21 ` Greg KH
2020-01-23 11:18 ` [PATCH 06/16] bus: mhi: core: Add support for PM state transitions Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 07/16] bus: mhi: core: Add support for basic PM operations Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 08/16] bus: mhi: core: Add support for downloading firmware over BHIe Manivannan Sadhasivam
2020-01-28 19:36 ` Jeffrey Hugo
2020-01-29 6:56 ` Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 09/16] bus: mhi: core: Add support for downloading RDDM image during panic Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 10/16] bus: mhi: core: Add support for processing events from client device Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 11/16] bus: mhi: core: Add support for data transfer Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 12/16] bus: mhi: core: Add uevent support for module autoloading Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 13/16] MAINTAINERS: Add entry for MHI bus Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 14/16] net: qrtr: Add MHI transport layer Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 15/16] net: qrtr: Do not depend on ARCH_QCOM Manivannan Sadhasivam
2020-01-23 11:18 ` [PATCH 16/16] soc: qcom: Do not depend on ARCH_QCOM for QMI helpers Manivannan Sadhasivam
2020-01-23 11:45 ` Arnd Bergmann
2020-01-23 12:03 ` Manivannan Sadhasivam
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