diff options
| author |   Joe Perches <joe@perches.com> | 2020-10-07 19:36:26 -0700 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2020-10-30 21:03:52 -0300 |
| commit | 45808361d4491217de11cdf0661d657081f8f422 (patch) | |
| tree | ac2e051297c598c34e9a9ac960aab518e0df589e /drivers/infiniband/hw/mlx4/sysfs.c | |
| parent | RDMA/hns: Add support for filling GMV table (diff) | |
| download | linux-dev-45808361d4491217de11cdf0661d657081f8f422.tar.xz linux-dev-45808361d4491217de11cdf0661d657081f8f422.zip | |
RDMA: Manual changes for sysfs_emit and neatening
Make changes to use sysfs_emit in the RDMA code as cocci scripts can not
be written to handle _all_ the possible variants of various sprintf family
uses in sysfs show functions.
While there, make the code more legible and update its style to be more
like the typical kernel styles.
Miscellanea:
o Use intermediate pointers for dereferences
o Add and use string lookup functions
o return early when any intermediate call fails so normal return is
at the bottom of the function
o mlx4/mcg.c:sysfs_show_group: use scnprintf to format intermediate strings
Link: https://lore.kernel.org/r/f5c9e4c9d8dafca1b7b70bd597ee7f8f219c31c8.1602122880.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/sysfs.c | 44 |
1 files changed, 19 insertions, 25 deletions
diff --git a/drivers/infiniband/hw/mlx4/sysfs.c b/drivers/infiniband/hw/mlx4/sysfs.c index 22ae363088ed..0279b780c446 100644 --- a/drivers/infiniband/hw/mlx4/sysfs.c +++ b/drivers/infiniband/hw/mlx4/sysfs.c @@ -117,22 +117,24 @@ static ssize_t show_port_gid(struct device *dev, struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; struct mlx4_ib_dev *mdev = port->dev; union ib_gid gid; - ssize_t ret; + int ret; + __be16 *raw; ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num, mlx4_ib_iov_dentry->entry_num, &gid, 1); if (ret) return ret; - ret = sysfs_emit(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", - be16_to_cpu(((__be16 *)gid.raw)[0]), - be16_to_cpu(((__be16 *)gid.raw)[1]), - be16_to_cpu(((__be16 *)gid.raw)[2]), - be16_to_cpu(((__be16 *)gid.raw)[3]), - be16_to_cpu(((__be16 *)gid.raw)[4]), - be16_to_cpu(((__be16 *)gid.raw)[5]), - be16_to_cpu(((__be16 *)gid.raw)[6]), - be16_to_cpu(((__be16 *)gid.raw)[7])); - return ret; + + raw = (__be16 *)gid.raw; + return sysfs_emit(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", + be16_to_cpu(raw[0]), + be16_to_cpu(raw[1]), + be16_to_cpu(raw[2]), + be16_to_cpu(raw[3]), + be16_to_cpu(raw[4]), + be16_to_cpu(raw[5]), + be16_to_cpu(raw[6]), + be16_to_cpu(raw[7])); } static ssize_t show_phys_port_pkey(struct device *dev, @@ -542,14 +544,10 @@ static ssize_t sysfs_show_smi_enabled(struct device *dev, { struct mlx4_port *p = container_of(attr, struct mlx4_port, smi_enabled); - ssize_t len = 0; - if (mlx4_vf_smi_enabled(p->dev->dev, p->slave, p->port_num)) - len = sysfs_emit(buf, "%d\n", 1); - else - len = sysfs_emit(buf, "%d\n", 0); - - return len; + return sysfs_emit(buf, "%d\n", + !!mlx4_vf_smi_enabled(p->dev->dev, p->slave, + p->port_num)); } static ssize_t sysfs_show_enable_smi_admin(struct device *dev, @@ -558,14 +556,10 @@ static ssize_t sysfs_show_enable_smi_admin(struct device *dev, { struct mlx4_port *p = container_of(attr, struct mlx4_port, enable_smi_admin); - ssize_t len = 0; - - if (mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, p->port_num)) - len = sysfs_emit(buf, "%d\n", 1); - else - len = sysfs_emit(buf, "%d\n", 0); - return len; + return sysfs_emit(buf, "%d\n", + !!mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, + p->port_num)); } static ssize_t sysfs_store_enable_smi_admin(struct device *dev, |