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authorGustavo A. R. Silva <gustavo@embeddedor.com>2017-07-18 18:03:11 -0500
committerHerbert Xu <herbert@gondor.apana.org.au>2017-08-03 13:47:15 +0800
commit0588d8500b6e7a94242c442d24ad9a55d8ad8f34 (patch)
treee03bd5f78c39dcb7d967fa3b09196f49dd60c333
parentb2e870f22284d2e69602c34027ec7bd5edeae419 (diff)
downloadlinux-0588d8500b6e7a94242c442d24ad9a55d8ad8f34.tar.gz
crypto: omap-sham - remove unnecessary static in omap_sham_remove()
Remove unnecessary static on local variable dd. Such variable
is initialized before being used, on every execution path throughout
the function. The static has no benefit and, removing it reduces the
object file size.

This issue was detected using Coccinelle and the following semantic patch:
https://github.com/GustavoARSilva/coccinelle/blob/master/static/static_unused.cocci

In the following log you can see a difference in the object file size.
This log is the output of the size command, before and after the code
change:

before:
   text    data     bss     dec     hex filename
  26135   11944     128   38207    953f drivers/crypto/omap-sham.o

after:
   text    data     bss     dec     hex filename
  26084   11856      64   38004    9474 drivers/crypto/omap-sham.o

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/omap-sham.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 9ad9d399daf1..c40ac30ec002 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -2133,7 +2133,7 @@ data_err:
 
 static int omap_sham_remove(struct platform_device *pdev)
 {
-	static struct omap_sham_dev *dd;
+	struct omap_sham_dev *dd;
 	int i, j;
 
 	dd = platform_get_drvdata(pdev);