[PATCH 2/5] raid: Require designated initialization of structures

From: Josh Triplett
Date: Thu Jul 31 2014 - 19:47:56 EST

Mark raid6_calls and other structures containing function pointers with
__designated_init. Fix implementations in lib/raid6/ to use designated
initializers; this also simplifies those initializers using the default
initialization of fields to 0.

Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
include/linux/raid/pq.h | 4 ++--
include/linux/raid/xor.h | 2 +-
include/linux/raid_class.h | 2 +-
lib/raid6/altivec.uc | 7 +++----
lib/raid6/avx2.c | 24 ++++++++++++------------
lib/raid6/int.uc | 6 ++----
lib/raid6/mmx.c | 14 ++++++--------
lib/raid6/neon.c | 7 +++----
lib/raid6/sse1.c | 16 ++++++++--------
lib/raid6/sse2.c | 24 ++++++++++++------------
lib/raid6/tilegx.uc | 6 ++----
11 files changed, 52 insertions(+), 60 deletions(-)

diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 73069cb..2147bff 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -75,7 +75,7 @@ struct raid6_calls {
int (*valid)(void); /* Returns 1 if this routine set is usable */
const char *name; /* Name of this routine set */
int prefer; /* Has special performance attribute */
-};
+} __designated_init;

/* Selected algorithm */
extern struct raid6_calls raid6_call;
@@ -109,7 +109,7 @@ struct raid6_recov_calls {
int (*valid)(void);
const char *name;
int priority;
-};
+} __designated_init;

extern const struct raid6_recov_calls raid6_recov_intx1;
extern const struct raid6_recov_calls raid6_recov_ssse3;
diff --git a/include/linux/raid/xor.h b/include/linux/raid/xor.h
index 5a21095..c7df59f 100644
--- a/include/linux/raid/xor.h
+++ b/include/linux/raid/xor.h
@@ -17,6 +17,6 @@ struct xor_block_template {
unsigned long *, unsigned long *);
void (*do_5)(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *, unsigned long *);
-};
+} __designated_init;

#endif
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
index 31e1ff6..603af94 100644
--- a/include/linux/raid_class.h
+++ b/include/linux/raid_class.h
@@ -16,7 +16,7 @@ struct raid_function_template {
int (*is_raid)(struct device *);
void (*get_resync)(struct device *);
void (*get_state)(struct device *);
-};
+} __designated_init;

enum raid_state {
RAID_STATE_UNKNOWN = 0,
diff --git a/lib/raid6/altivec.uc b/lib/raid6/altivec.uc
index 7cc12b5..4ff138c 100644
--- a/lib/raid6/altivec.uc
+++ b/lib/raid6/altivec.uc
@@ -118,10 +118,9 @@ int raid6_have_altivec(void)
#endif

const struct raid6_calls raid6_altivec$# = {
- raid6_altivec$#_gen_syndrome,
- raid6_have_altivec,
- "altivecx$#",
- 0
+ .gen_syndrome = raid6_altivec$#_gen_syndrome,
+ .valid = raid6_have_altivec,
+ .name = "altivecx$#",
};

#endif /* CONFIG_ALTIVEC */
diff --git a/lib/raid6/avx2.c b/lib/raid6/avx2.c
index bc3b1dd..e56fa06 100644
--- a/lib/raid6/avx2.c
+++ b/lib/raid6/avx2.c
@@ -88,10 +88,10 @@ static void raid6_avx21_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_avx2x1 = {
- raid6_avx21_gen_syndrome,
- raid6_have_avx2,
- "avx2x1",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_avx21_gen_syndrome,
+ .valid = raid6_have_avx2,
+ .name = "avx2x1",
+ .prefer = 1, /* Has cache hints */
};

/*
@@ -149,10 +149,10 @@ static void raid6_avx22_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_avx2x2 = {
- raid6_avx22_gen_syndrome,
- raid6_have_avx2,
- "avx2x2",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_avx22_gen_syndrome,
+ .valid = raid6_have_avx2,
+ .name = "avx2x2",
+ .prefer = 1, /* Has cache hints */
};

#ifdef CONFIG_X86_64
@@ -241,10 +241,10 @@ static void raid6_avx24_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_avx2x4 = {
- raid6_avx24_gen_syndrome,
- raid6_have_avx2,
- "avx2x4",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_avx24_gen_syndrome,
+ .valid = raid6_have_avx2,
+ .name = "avx2x4",
+ .prefer = 1, /* Has cache hints */
};
#endif

diff --git a/lib/raid6/int.uc b/lib/raid6/int.uc
index 5b50f8d..35ad01a 100644
--- a/lib/raid6/int.uc
+++ b/lib/raid6/int.uc
@@ -108,10 +108,8 @@ static void raid6_int$#_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_intx$# = {
- raid6_int$#_gen_syndrome,
- NULL, /* always valid */
- "int" NSTRING "x$#",
- 0
+ .gen_syndrome = raid6_int$#_gen_syndrome,
+ .name = "int" NSTRING "x$#",
};

#endif
diff --git a/lib/raid6/mmx.c b/lib/raid6/mmx.c
index 590c71c..cdd7d02 100644
--- a/lib/raid6/mmx.c
+++ b/lib/raid6/mmx.c
@@ -75,10 +75,9 @@ static void raid6_mmx1_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_mmxx1 = {
- raid6_mmx1_gen_syndrome,
- raid6_have_mmx,
- "mmxx1",
- 0
+ .gen_syndrome = raid6_mmx1_gen_syndrome,
+ .valid = raid6_have_mmx,
+ .name = "mmxx1",
};

/*
@@ -133,10 +132,9 @@ static void raid6_mmx2_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_mmxx2 = {
- raid6_mmx2_gen_syndrome,
- raid6_have_mmx,
- "mmxx2",
- 0
+ .gen_syndrome = raid6_mmx2_gen_syndrome,
+ .valid = raid6_have_mmx,
+ .name = "mmxx2",
};

#endif
diff --git a/lib/raid6/neon.c b/lib/raid6/neon.c
index 36ad470..99100dd 100644
--- a/lib/raid6/neon.c
+++ b/lib/raid6/neon.c
@@ -41,10 +41,9 @@
kernel_neon_end(); \
} \
struct raid6_calls const raid6_neonx ## _n = { \
- raid6_neon ## _n ## _gen_syndrome, \
- raid6_have_neon, \
- "neonx" #_n, \
- 0 \
+ .gen_syndrome = raid6_neon ## _n ## _gen_syndrome, \
+ .valid = raid6_have_neon, \
+ .name = "neonx" #_n, \
}

static int raid6_have_neon(void)
diff --git a/lib/raid6/sse1.c b/lib/raid6/sse1.c
index f762971..a9de46e 100644
--- a/lib/raid6/sse1.c
+++ b/lib/raid6/sse1.c
@@ -91,10 +91,10 @@ static void raid6_sse11_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_sse1x1 = {
- raid6_sse11_gen_syndrome,
- raid6_have_sse1_or_mmxext,
- "sse1x1",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_sse11_gen_syndrome,
+ .valid = raid6_have_sse1_or_mmxext,
+ .name = "sse1x1",
+ .prefer = 1, /* Has cache hints */
};

/*
@@ -153,10 +153,10 @@ static void raid6_sse12_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_sse1x2 = {
- raid6_sse12_gen_syndrome,
- raid6_have_sse1_or_mmxext,
- "sse1x2",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_sse12_gen_syndrome,
+ .valid = raid6_have_sse1_or_mmxext,
+ .name = "sse1x2",
+ .prefer = 1, /* Has cache hints */
};

#endif
diff --git a/lib/raid6/sse2.c b/lib/raid6/sse2.c
index 85b82c8..cd262518aa 100644
--- a/lib/raid6/sse2.c
+++ b/lib/raid6/sse2.c
@@ -89,10 +89,10 @@ static void raid6_sse21_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_sse2x1 = {
- raid6_sse21_gen_syndrome,
- raid6_have_sse2,
- "sse2x1",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_sse21_gen_syndrome,
+ .valid = raid6_have_sse2,
+ .name = "sse2x1",
+ .prefer = 1, /* Has cache hints */
};

/*
@@ -151,10 +151,10 @@ static void raid6_sse22_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_sse2x2 = {
- raid6_sse22_gen_syndrome,
- raid6_have_sse2,
- "sse2x2",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_sse22_gen_syndrome,
+ .valid = raid6_have_sse2,
+ .name = "sse2x2",
+ .prefer = 1, /* Has cache hints */
};

#ifdef CONFIG_X86_64
@@ -249,10 +249,10 @@ static void raid6_sse24_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_sse2x4 = {
- raid6_sse24_gen_syndrome,
- raid6_have_sse2,
- "sse2x4",
- 1 /* Has cache hints */
+ .gen_syndrome = raid6_sse24_gen_syndrome,
+ .valid = raid6_have_sse2,
+ .name = "sse2x4",
+ .prefer = 1, /* Has cache hints */
};

#endif /* CONFIG_X86_64 */
diff --git a/lib/raid6/tilegx.uc b/lib/raid6/tilegx.uc
index e7c2945..3077722 100644
--- a/lib/raid6/tilegx.uc
+++ b/lib/raid6/tilegx.uc
@@ -79,8 +79,6 @@ void raid6_tilegx$#_gen_syndrome(int disks, size_t bytes, void **ptrs)
}

const struct raid6_calls raid6_tilegx$# = {
- raid6_tilegx$#_gen_syndrome,
- NULL,
- "tilegx$#",
- 0
+ .gen_syndrome = raid6_tilegx$#_gen_syndrome,
+ .name = "tilegx$#",
};
--
2.0.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/