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authorGuilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>2017-12-14 12:34:04 -0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-19 10:54:44 +0100
commit07864a177978ce1f59a484365e671713e693ef8c (patch)
tree14b15e9de036e179e8a2e0f10e45d3e3c82d8047 /drivers/misc
parent9a479b0853bc39e5d9d77adc9b8da167951446e9 (diff)
genwqe: Remove unused variable and rename function
This is a clean-up patch, no functional changes intended. It removes an unused variable from do_execute_ddcb() and also renames the function free_user_pages(), prepending "genwqe" prefix in order to clarify the code. Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/genwqe/card_dev.c3
-rw-r--r--drivers/misc/genwqe/card_utils.c20
2 files changed, 7 insertions, 16 deletions
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index 3ecfa35457e0..1f4986fcf363 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -1011,7 +1011,6 @@ static int do_execute_ddcb(struct genwqe_file *cfile,
{
int rc;
struct genwqe_ddcb_cmd *cmd;
- struct ddcb_requ *req;
struct genwqe_dev *cd = cfile->cd;
struct file *filp = cfile->filp;
@@ -1019,8 +1018,6 @@ static int do_execute_ddcb(struct genwqe_file *cfile,
if (cmd == NULL)
return -ENOMEM;
- req = container_of(cmd, struct ddcb_requ, cmd);
-
if (copy_from_user(cmd, (void __user *)arg, sizeof(*cmd))) {
ddcb_requ_free(cmd);
return -EFAULT;
diff --git a/drivers/misc/genwqe/card_utils.c b/drivers/misc/genwqe/card_utils.c
index 5c0d917636f7..0593105991da 100644
--- a/drivers/misc/genwqe/card_utils.c
+++ b/drivers/misc/genwqe/card_utils.c
@@ -524,22 +524,16 @@ int genwqe_free_sync_sgl(struct genwqe_dev *cd, struct genwqe_sgl *sgl)
}
/**
- * free_user_pages() - Give pinned pages back
+ * genwqe_free_user_pages() - Give pinned pages back
*
- * Documentation of get_user_pages is in mm/memory.c:
+ * Documentation of get_user_pages is in mm/gup.c:
*
* If the page is written to, set_page_dirty (or set_page_dirty_lock,
* as appropriate) must be called after the page is finished with, and
* before put_page is called.
- *
- * FIXME Could be of use to others and might belong in the generic
- * code, if others agree. E.g.
- * ll_free_user_pages in drivers/staging/lustre/lustre/llite/rw26.c
- * ceph_put_page_vector in net/ceph/pagevec.c
- * maybe more?
*/
-static int free_user_pages(struct page **page_list, unsigned int nr_pages,
- int dirty)
+static int genwqe_free_user_pages(struct page **page_list,
+ unsigned int nr_pages, int dirty)
{
unsigned int i;
@@ -617,7 +611,7 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr,
/* assumption: get_user_pages can be killed by signals. */
if (rc < m->nr_pages) {
- free_user_pages(m->page_list, rc, m->write);
+ genwqe_free_user_pages(m->page_list, rc, m->write);
rc = -EFAULT;
goto fail_get_user_pages;
}
@@ -629,7 +623,7 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr,
return 0;
fail_free_user_pages:
- free_user_pages(m->page_list, m->nr_pages, m->write);
+ genwqe_free_user_pages(m->page_list, m->nr_pages, m->write);
fail_get_user_pages:
kfree(m->page_list);
@@ -662,7 +656,7 @@ int genwqe_user_vunmap(struct genwqe_dev *cd, struct dma_mapping *m,
genwqe_unmap_pages(cd, m->dma_list, m->nr_pages);
if (m->page_list) {
- free_user_pages(m->page_list, m->nr_pages, m->write);
+ genwqe_free_user_pages(m->page_list, m->nr_pages, m->write);
kfree(m->page_list);
m->page_list = NULL;

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