Re: [PATCH mm v4 28/39] kasan, page_alloc: allow skipping unpoisoning for HW_TAGS

[Marco Elver <elver@xxxxxxxxxx>]

On Mon, Dec 20, 2021 at 11:02PM +0100, andrey.konovalov@xxxxxxxxx wrote:
[...]
>  #ifdef CONFIG_KASAN_HW_TAGS
>  #define __def_gfpflag_names_kasan					      \
> -	, {(unsigned long)__GFP_SKIP_KASAN_POISON, "__GFP_SKIP_KASAN_POISON"}
> +	, {(unsigned long)__GFP_SKIP_KASAN_POISON, "__GFP_SKIP_KASAN_POISON"} \
> +	, {(unsigned long)__GFP_SKIP_KASAN_UNPOISON,			      \
> +						"__GFP_SKIP_KASAN_UNPOISON"}
>  #else
>  #define __def_gfpflag_names_kasan
>  #endif

Adhering to 80 cols here makes the above less readable. If you do a v5,
my suggestion is:

diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index f18eeb5fdde2..f9f0ae3a4b6b 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -51,11 +51,10 @@
 	{(unsigned long)__GFP_ZEROTAGS,		"__GFP_ZEROTAGS"}	\
 
 #ifdef CONFIG_KASAN_HW_TAGS
-#define __def_gfpflag_names_kasan					      \
-	, {(unsigned long)__GFP_SKIP_ZERO, "__GFP_SKIP_ZERO"}		      \
-	, {(unsigned long)__GFP_SKIP_KASAN_POISON, "__GFP_SKIP_KASAN_POISON"} \
-	, {(unsigned long)__GFP_SKIP_KASAN_UNPOISON,			      \
-						"__GFP_SKIP_KASAN_UNPOISON"}
+#define __def_gfpflag_names_kasan ,							\
+	{(unsigned long)__GFP_SKIP_ZERO,		"__GFP_SKIP_ZERO"},		\
+	{(unsigned long)__GFP_SKIP_KASAN_POISON,	"__GFP_SKIP_KASAN_POISON"},	\
+	{(unsigned long)__GFP_SKIP_KASAN_UNPOISON,	"__GFP_SKIP_KASAN_UNPOISON"}
 #else
 #define __def_gfpflag_names_kasan
 #endif