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Date: Tue, 14 May 2019 11:07:35 -0400 From: Qian Cai <cai@....pw> To: akpm@...ux-foundation.org Cc: dan.j.williams@...el.com, vishal.l.verma@...el.com, dave.jiang@...el.com, keith.busch@...el.com, ira.weiny@...el.com, linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org, Qian Cai <cai@....pw> Subject: [RESEND PATCH] nvdimm: fix some compilation warnings Several places (dimm_devs.c, core.c etc) include label.h but only label.c uses NSINDEX_SIGNATURE, so move its definition to label.c instead. In file included from drivers/nvdimm/dimm_devs.c:23: drivers/nvdimm/label.h:41:19: warning: 'NSINDEX_SIGNATURE' defined but not used [-Wunused-const-variable=] The commit d9b83c756953 ("libnvdimm, btt: rework error clearing") left an unused variable. drivers/nvdimm/btt.c: In function 'btt_read_pg': drivers/nvdimm/btt.c:1272:8: warning: variable 'rc' set but not used [-Wunused-but-set-variable] Last, some places abuse "/**" which is only reserved for the kernel-doc. drivers/nvdimm/bus.c:648: warning: cannot understand function prototype: 'struct attribute_group nd_device_attribute_group = ' drivers/nvdimm/bus.c:677: warning: cannot understand function prototype: 'struct attribute_group nd_numa_attribute_group = ' Reviewed-by: Vishal Verma <vishal.l.verma@...el.com> Signed-off-by: Qian Cai <cai@....pw> --- drivers/nvdimm/btt.c | 6 ++---- drivers/nvdimm/bus.c | 4 ++-- drivers/nvdimm/label.c | 2 ++ drivers/nvdimm/label.h | 2 -- 4 files changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 4671776f5623..9f02a99cfac0 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1269,11 +1269,9 @@ static int btt_read_pg(struct btt *btt, struct bio_integrity_payload *bip, ret = btt_data_read(arena, page, off, postmap, cur_len); if (ret) { - int rc; - /* Media error - set the e_flag */ - rc = btt_map_write(arena, premap, postmap, 0, 1, - NVDIMM_IO_ATOMIC); + btt_map_write(arena, premap, postmap, 0, 1, + NVDIMM_IO_ATOMIC); goto out_rtt; } diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 7ff684159f29..2eb6a6cfe9e4 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -642,7 +642,7 @@ static struct attribute *nd_device_attributes[] = { NULL, }; -/** +/* * nd_device_attribute_group - generic attributes for all devices on an nd bus */ struct attribute_group nd_device_attribute_group = { @@ -671,7 +671,7 @@ static umode_t nd_numa_attr_visible(struct kobject *kobj, struct attribute *a, return a->mode; } -/** +/* * nd_numa_attribute_group - NUMA attributes for all devices on an nd bus */ struct attribute_group nd_numa_attribute_group = { diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index f3d753d3169c..02a51b7775e1 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -25,6 +25,8 @@ static guid_t nvdimm_btt2_guid; static guid_t nvdimm_pfn_guid; static guid_t nvdimm_dax_guid; +static const char NSINDEX_SIGNATURE[] = "NAMESPACE_INDEX\0"; + static u32 best_seq(u32 a, u32 b) { a &= NSINDEX_SEQ_MASK; diff --git a/drivers/nvdimm/label.h b/drivers/nvdimm/label.h index e9a2ad3c2150..4bb7add39580 100644 --- a/drivers/nvdimm/label.h +++ b/drivers/nvdimm/label.h @@ -38,8 +38,6 @@ enum { ND_NSINDEX_INIT = 0x1, }; -static const char NSINDEX_SIGNATURE[] = "NAMESPACE_INDEX\0"; - /** * struct nd_namespace_index - label set superblock * @sig: NAMESPACE_INDEX\0 -- 2.20.1 (Apple Git-117)
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