From 563e4cf25ec804eb02cd30a41baa2fcc6c06679b Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Wed, 4 May 2011 10:33:52 +0200 Subject: [PATCH] drbd: Introduce __s32_field in the genetlink macro magic ...and drop explicit typecasts (int)meta_dev_idx < 0. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_nl.c | 8 ++++---- include/linux/drbd_genl.h | 2 +- include/linux/genl_magic_struct.h | 3 +++ 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index a1854e3aa15e..b8ea4807c981 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1253,7 +1253,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) goto fail; } - if ((int)nbc->dc.meta_dev_idx < DRBD_MD_INDEX_FLEX_INT) { + if (nbc->dc.meta_dev_idx < DRBD_MD_INDEX_FLEX_INT) { retcode = ERR_MD_IDX_INVALID; goto fail; } @@ -1289,7 +1289,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) */ bdev = blkdev_get_by_path(nbc->dc.meta_dev, FMODE_READ | FMODE_WRITE | FMODE_EXCL, - ((int)nbc->dc.meta_dev_idx < 0) ? + (nbc->dc.meta_dev_idx < 0) ? (void *)mdev : (void *)drbd_m_holder); if (IS_ERR(bdev)) { dev_err(DEV, "open(\"%s\") failed with %ld\n", nbc->dc.meta_dev, @@ -1325,7 +1325,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) goto fail; } - if ((int)nbc->dc.meta_dev_idx < 0) { + if (nbc->dc.meta_dev_idx < 0) { max_possible_sectors = DRBD_MAX_SECTORS_FLEX; /* at least one MB, otherwise it does not make sense */ min_md_device_sectors = (2<<10); @@ -1356,7 +1356,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) dev_warn(DEV, "==> truncating very big lower level device " "to currently maximum possible %llu sectors <==\n", (unsigned long long) max_possible_sectors); - if ((int)nbc->dc.meta_dev_idx >= 0) + if (nbc->dc.meta_dev_idx >= 0) dev_warn(DEV, "==>> using internal or flexible " "meta data may help <<==\n"); } diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h index 549800668cb9..f143e3c0f33b 100644 --- a/include/linux/drbd_genl.h +++ b/include/linux/drbd_genl.h @@ -102,7 +102,7 @@ GENL_struct(DRBD_NLA_CFG_CONTEXT, 2, drbd_cfg_context, GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf, __str_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT, backing_dev, 128) __str_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev, 128) - __u32_field(3, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev_idx) + __s32_field(3, GENLA_F_REQUIRED | GENLA_F_INVARIANT, meta_dev_idx) /* use the resize command to try and change the disk_size */ __u64_field(4, GENLA_F_MANDATORY | GENLA_F_INVARIANT, disk_size) diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h index f2c7cc7831df..ddbdd0a24476 100644 --- a/include/linux/genl_magic_struct.h +++ b/include/linux/genl_magic_struct.h @@ -97,6 +97,9 @@ enum { #define __u32_field(attr_nr, attr_flag, name) \ __field(attr_nr, attr_flag, name, NLA_U32, __u32, \ nla_get_u32, NLA_PUT_U32) +#define __s32_field(attr_nr, attr_flag, name) \ + __field(attr_nr, attr_flag, name, NLA_U32, __s32, \ + nla_get_u32, NLA_PUT_U32) #define __u64_field(attr_nr, attr_flag, name) \ __field(attr_nr, attr_flag, name, NLA_U64, __u64, \ nla_get_u64, NLA_PUT_U64) -- 2.20.1