blktrace: fix endianness in get_pdu_int()

ChaitanayaKulkarni · axboe · commit 71df3fd82e7c · 2020-06-04T21:23:38.000-06:00
In function get_pdu_len() replace variable type from __u64 to
__be64. This fixes sparse warning.

Signed-off-by: Chaitanya Kulkarni &lt;chaitanya.kulkarni@wdc.com&gt;
Signed-off-by: Jens Axboe &lt;axboe@kernel.dk&gt;
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
@@ -1256,7 +1256,7 @@ static inline __u16 t_error(const struct trace_entry *ent)
 
 static __u64 get_pdu_int(const struct trace_entry *ent, bool has_cg)
 {
-	const __u64 *val = pdu_start(ent, has_cg);
+	const __be64 *val = pdu_start(ent, has_cg);
 	return be64_to_cpu(*val);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1256,7 +1256,7 @@ static inline __u16 t_error(const struct trace_entry *ent)`
`1256`	`1256`
`1257`	`1257`	`static __u64 get_pdu_int(const struct trace_entry *ent, bool has_cg)`
`1258`	`1258`	`{`
`1259`		`- const __u64 *val = pdu_start(ent, has_cg);`
	`1259`	`+ const __be64 *val = pdu_start(ent, has_cg);`
`1260`	`1260`	`return be64_to_cpu(*val);`
`1261`	`1261`	`}`
`1262`	`1262`