From 5ecbd5d46d8ce16df024d15cd8dee9e536770552 Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Wed, 13 May 2015 13:22:23 -0400 Subject: [PATCH] staging: unisys: Convert the device attributes to visor_device Convert the device attribute files to properly use visor_device. This removes a whole bunch of checks and assumptions and simplifies the code. Everything is straightforward. No testing down as I can't mimic channel info correctl. Signed-off-by: Don Zickus Signed-off-by: Benjamin Romer Signed-off-by: Greg Kroah-Hartman --- .../staging/unisys/visorbus/visorbus_main.c | 80 +++++++------------ 1 file changed, 28 insertions(+), 52 deletions(-) diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 7dddb072a29e..b66fce5d63b5 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -541,78 +541,54 @@ static const struct attribute_group *visorbus_dev_groups[] = { static ssize_t partition_handle_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); - struct visorchipset_bus_info bus_info; - int len = 0; + struct visor_device *vdev = to_visor_device(dev); + u64 handle = visorchannel_get_clientpartition(vdev->visorchannel); - if (businst && visorchipset_get_bus_info(businst->devno, &bus_info)) - len = snprintf(buf, PAGE_SIZE, - "0x%Lx\n", - (unsigned long long)bus_info.partition_handle); - return len; + return snprintf(buf, PAGE_SIZE, "0x%Lx\n", handle); } static ssize_t partition_guid_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); - struct visorchipset_bus_info bus_info; - int len = 0; + struct visor_device *vdev = to_visor_device(dev); - if (businst && visorchipset_get_bus_info(businst->devno, &bus_info)) - len = snprintf(buf, PAGE_SIZE, "{%pUb}\n", - &bus_info.partition_uuid); - return len; + return snprintf(buf, PAGE_SIZE, "{%pUb}\n", &vdev->partition_uuid); } static ssize_t partition_name_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); - struct visorchipset_bus_info bus_info; - int len = 0; + struct visor_device *vdev = to_visor_device(dev); - if (businst && - visorchipset_get_bus_info(businst->devno, &bus_info) && - bus_info.name) - len = snprintf(buf, PAGE_SIZE, "%s\n", bus_info.name); - return len; + return snprintf(buf, PAGE_SIZE, "%s\n", vdev->name); } static ssize_t channel_addr_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); - struct visorchipset_bus_info bus_info; - int len = 0; + struct visor_device *vdev = to_visor_device(dev); + u64 addr = visorchannel_get_physaddr(vdev->visorchannel); - if (businst && visorchipset_get_bus_info(businst->devno, &bus_info)) - len = snprintf(buf, PAGE_SIZE, "0x%Lx\n", (unsigned long long) - bus_info.chan_info.channel_addr); - return len; + return snprintf(buf, PAGE_SIZE, "0x%Lx\n", addr); } static ssize_t channel_bytes_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); - struct visorchipset_bus_info bus_info; - int len = 0; + struct visor_device *vdev = to_visor_device(dev); + u64 nbytes = visorchannel_get_nbytes(vdev->visorchannel); - if (businst && visorchipset_get_bus_info(businst->devno, &bus_info)) - len = snprintf(buf, PAGE_SIZE, "0x%Lx\n", (unsigned long long) - bus_info.chan_info.n_channel_bytes); - return len; + return snprintf(buf, PAGE_SIZE, "0x%Lx\n", nbytes); } static ssize_t channel_id_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); + struct visor_device *vdev = to_visor_device(dev); int len = 0; - if (businst && businst->chan) { - visorchannel_id(businst->chan, buf); + if (vdev->visorchannel) { + visorchannel_id(vdev->visorchannel, buf); len = strlen(buf); buf[len++] = '\n'; } @@ -622,8 +598,9 @@ static ssize_t channel_id_show(struct device *dev, static ssize_t client_bus_info_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct visorbus_devdata *businst = to_visorbus_devdata(dev); - struct visorchipset_bus_info bus_info; + struct visor_device *vdev = to_visor_device(dev); + struct visorchannel *channel = vdev->visorchannel; + int i, x, remain = PAGE_SIZE; unsigned long off; char *p = buf; @@ -631,16 +608,15 @@ static ssize_t client_bus_info_show(struct device *dev, struct ultra_vbus_deviceinfo dev_info; partition_name = ""; - if (businst && businst->chan) { - if (visorchipset_get_bus_info(businst->devno, &bus_info) && - bus_info.name) - partition_name = bus_info.name; + if (channel) { + if (vdev->name) + partition_name = vdev->name; x = snprintf(p, remain, - "Client device / client driver info for %s partition (vbus #%d):\n", - partition_name, businst->devno); + "Client device / client driver info for %s partition (vbus #%ld):\n", + partition_name, vdev->chipset_dev_no); p += x; remain -= x; - x = visorchannel_read(businst->chan, + x = visorchannel_read(channel, offsetof(struct spar_vbus_channel_protocol, chp_info), @@ -651,7 +627,7 @@ static ssize_t client_bus_info_show(struct device *dev, p += x; remain -= x; } - x = visorchannel_read(businst->chan, + x = visorchannel_read(channel, offsetof(struct spar_vbus_channel_protocol, bus_info), @@ -665,8 +641,8 @@ static ssize_t client_bus_info_show(struct device *dev, off = offsetof(struct spar_vbus_channel_protocol, dev_info); i = 0; while (off + sizeof(dev_info) <= - visorchannel_get_nbytes(businst->chan)) { - x = visorchannel_read(businst->chan, + visorchannel_get_nbytes(channel)) { + x = visorchannel_read(channel, off, &dev_info, sizeof(dev_info)); if (x >= 0) { x = vbuschannel_devinfo_to_string -- 2.34.1