linux-kernel - [PATCH v2] spi: <linux/spi/spi.h>: Add missing documentation for struct members

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Date:   Wed,  8 Jun 2022 17:33:09 +0200
From:   David Jander <david@...tonic.nl>
To:     Mark Brown <broonie@...nel.org>
Cc:     linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        David Jander <david@...tonic.nl>
Subject: [PATCH v2] spi: <linux/spi/spi.h>: Add missing documentation for struct members

Fixes these "make htmldocs" warnings:

include/linux/spi/spi.h:82: warning: Function parameter or member 'syncp' not described in 'spi_statistics'
include/linux/spi/spi.h:213: warning: Function parameter or member 'pcpu_statistics' not described in 'spi_device'
include/linux/spi/spi.h:676: warning: Function parameter or member 'pcpu_statistics' not described in 'spi_controller'

Fixes: 6598b91b5ac3 ("spi: spi.c: Convert statistics to per-cpu u64_stats_t")
Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: David Jander <david@...tonic.nl>
---
v2:
 - Correct patch subject line style
 - Add the text of the actual warnings that are being fixed
 - Add a Fixes: tag
---
 include/linux/spi/spi.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index eac8d3caf954..2e63b4935deb 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -35,7 +35,8 @@ extern struct bus_type spi_bus_type;
 
 /**
  * struct spi_statistics - statistics for spi transfers
- * @lock:          lock protecting this structure
+ * @syncp:         seqcount to protect members in this struct for per-cpu udate
+ *                 on 32-bit systems
  *
  * @messages:      number of spi-messages handled
  * @transfers:     number of spi_transfers handled
@@ -155,7 +156,7 @@ extern int spi_delay_exec(struct spi_delay *_delay, struct spi_transfer *xfer);
  * @cs_inactive: delay to be introduced by the controller after CS is
  *	deasserted. If @cs_change_delay is used from @spi_transfer, then the
  *	two delays will be added up.
- * @statistics: statistics for the spi_device
+ * @pcpu_statistics: statistics for the spi_device
  *
  * A @spi_device is used to interchange data between an SPI slave
  * (usually a discrete chip) and CPU memory.
@@ -439,7 +440,7 @@ extern struct spi_device *spi_new_ancillary_device(struct spi_device *spi, u8 ch
  * @max_native_cs: When cs_gpiods is used, and this field is filled in,
  *	spi_register_controller() will validate all native CS (including the
  *	unused native CS) against this value.
- * @statistics: statistics for the spi_controller
+ * @pcpu_statistics: statistics for the spi_controller
  * @dma_tx: DMA transmit channel
  * @dma_rx: DMA receive channel
  * @dummy_rx: dummy receive buffer for full-duplex devices
-- 
2.32.0