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[PATCH] CFLAGS: add -Wunused-but-set-parameter

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  [PATCH] CFLAGS: add -Wunused-but-set-parameter Alexey Dobriyan <adobriyan@gmail.com> - 2016-07-07 23:50 +0200

#1438944 — [PATCH] CFLAGS: add -Wunused-but-set-parameter

-Wunused-but-set-parameter is finding stuff with current allmodconfig:

drivers/misc/mic/scif/scif_dma.c:118:27: warning: parameter 'ep' set but not used [-Wunused-but-set-parameter]
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c:2156:8: warning: parameter 'function' set but not used [-Wunused-but-set-parameter]
drivers/net/ethernet/ti/tlan.c:1647:59: warning: parameter 'host_int' set but not used [-Wunused-but-set-parameter]
drivers/usb/gadget/udc/pxa27x_udc.c:1828:74: warning: parameter 'driver' set but not used [-Wunused-but-set-parameter]

and judging by changelogs, people were using it before,
but were too scared to touch top level Makefile.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 Makefile |    1 +
 1 file changed, 1 insertion(+)

--- a/Makefile
+++ b/Makefile
@@ -399,6 +399,7 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		   -Werror-implicit-function-declaration \
 		   -Wno-format-security \
 		   -std=gnu89
+KBUILD_CFLAGS += -Wunused-but-set-parameter
 
 KBUILD_AFLAGS_KERNEL :=
 KBUILD_CFLAGS_KERNEL :=

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