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Date: Fri, 27 Jan 2017 23:36:17 +0530
From: Bhumika Goyal <bhumirks@...il.com>
To: julia.lawall@...6.fr, ludovic.desroches@...el.com,
wsa@...-dreams.de, sonic.zhang@...log.com,
jarkko.nikula@...ux.intel.com, andriy.shevchenko@...ux.intel.com,
mika.westerberg@...ux.intel.com, jdelvare@...e.com,
patrice.chotard@...com, linux-i2c@...r.kernel.org,
linux-kernel@...r.kernel.org,
adi-buildroot-devel@...ts.sourceforge.net,
linux-arm-kernel@...ts.infradead.org, kernel@...inux.com
Cc: Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH] i2c: busses: constify i2c_algorithm structures
Declare i2c_algorithm structures as const as they are only stored in the
algo field of an i2c_adapter structure. This field is of type const, so
i2c_algorithm structures having this property can be made const too.
Done using Coccinelle:
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@......};
@ok@
identifier r.i,x;
position p;
struct i2c_adapter adapter;
struct xlr_i2c_private priv;
@@
(
adapter.algo=&i@p;
|
priv.adap.algo=&i@p;
)
@bad@
position p!={r.p,ok.p};
identifier r.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
+const
struct i2c_algorithm i;
File size details before and after patching.
First line of every .o file shows the file size before patching
and second line shows the size after patching.
text data bss dec hex filename
9138 1328 8 10474 28ea drivers/i2c/busses/i2c-at91.o
9178 1280 8 10466 28e2 drivers/i2c/busses/i2c-at91.o
7555 657 8 8220 201c i2c/busses/i2c-designware-core.o
7619 617 8 8244 2034 i2c/busses/i2c-designware-core.o
7240 2240 120 9600 2580 drivers/i2c/busses/i2c-eg20t.o
7304 2176 120 9600 2580 drivers/i2c/busses/i2c-eg20t.o
2399 248 8 2655 a5f drivers/i2c/busses/i2c-emev2.o
2455 192 8 2655 a5f drivers/i2c/busses/i2c-emev2.o
3766 688 8 4462 116e i2c/busses/i2c-imx-lpi2c.o
3814 632 8 4454 1166 i2c/busses/i2c-imx-lpi2c.o
11793 4280 16 16089 3ed9 drivers/i2c/busses/i2c-imx.o
11857 4216 16 16089 3ed9 drivers/i2c/busses/i2c-imx.o
4046 656 8 4710 1266 drivers/i2c/busses/i2c-nforce2.o
4110 592 8 4710 1266 drivers/i2c/busses/i2c-nforce2.o
1397 464 0 1861 745 i2c/busses/i2c-robotfuzz-osif.o
1437 408 0 1845 735 i2c/busses/i2c-robotfuzz-osif.o
9622 1216 16 10854 2a66 i2c/busses/i2c-sh_mobile.o
9662 1160 16 10838 2a56 i2c/busses/i2c-sh_mobile.o
4936 576 8 5520 1590 drivers/i2c/busses/i2c-st.o
5000 512 8 5520 1590 drivers/i2c/busses/i2c-st.o
3404 248 8 3660 e4c i2c/busses/i2c-xgene-slimpro.o
3460 192 8 3660 e4c i2c/busses/i2c-xgene-slimpro.o
2741 600 8 3349 d15 drivers/i2c/busses/i2c-xlp9xx.o
2797 544 8 3349 d15 drivers/i2c/busses/i2c-xlp9xx.o
2643 248 8 2899 b53 drivers/i2c/busses/i2c-xlr.o
2707 192 8 2907 b5b drivers/i2c/busses/i2c-xlr.o
Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
---
drivers/i2c/busses/i2c-at91.c | 2 +-
drivers/i2c/busses/i2c-bfin-twi.c | 2 +-
drivers/i2c/busses/i2c-designware-core.c | 2 +-
drivers/i2c/busses/i2c-eg20t.c | 2 +-
drivers/i2c/busses/i2c-emev2.c | 2 +-
drivers/i2c/busses/i2c-imx-lpi2c.c | 2 +-
drivers/i2c/busses/i2c-imx.c | 2 +-
drivers/i2c/busses/i2c-nforce2.c | 2 +-
drivers/i2c/busses/i2c-robotfuzz-osif.c | 2 +-
drivers/i2c/busses/i2c-sh_mobile.c | 2 +-
drivers/i2c/busses/i2c-st.c | 2 +-
drivers/i2c/busses/i2c-xgene-slimpro.c | 2 +-
drivers/i2c/busses/i2c-xlp9xx.c | 2 +-
drivers/i2c/busses/i2c-xlr.c | 2 +-
14 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 0b86c61..e4fcb0c 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -820,7 +820,7 @@ static u32 at91_twi_func(struct i2c_adapter *adapter)
| I2C_FUNC_SMBUS_READ_BLOCK_DATA;
}
-static struct i2c_algorithm at91_twi_algorithm = {
+static const struct i2c_algorithm at91_twi_algorithm = {
.master_xfer = at91_twi_xfer,
.functionality = at91_twi_func,
};
diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index 29d00c4..9fe942b 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -563,7 +563,7 @@ static u32 bfin_twi_functionality(struct i2c_adapter *adap)
I2C_FUNC_I2C | I2C_FUNC_SMBUS_I2C_BLOCK;
}
-static struct i2c_algorithm bfin_twi_algorithm = {
+static const struct i2c_algorithm bfin_twi_algorithm = {
.master_xfer = bfin_twi_master_xfer,
.smbus_xfer = bfin_twi_smbus_xfer,
.functionality = bfin_twi_functionality,
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 6d81c56..a62c14c 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -822,7 +822,7 @@ static u32 i2c_dw_func(struct i2c_adapter *adap)
return dev->functionality;
}
-static struct i2c_algorithm i2c_dw_algo = {
+static const struct i2c_algorithm i2c_dw_algo = {
.master_xfer = i2c_dw_xfer,
.functionality = i2c_dw_func,
};
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 5ce71ce..bdeab01 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -715,7 +715,7 @@ static u32 pch_i2c_func(struct i2c_adapter *adap)
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR;
}
-static struct i2c_algorithm pch_algorithm = {
+static const struct i2c_algorithm pch_algorithm = {
.master_xfer = pch_i2c_xfer,
.functionality = pch_i2c_func
};
diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c
index 96bb4e7..3129127 100644
--- a/drivers/i2c/busses/i2c-emev2.c
+++ b/drivers/i2c/busses/i2c-emev2.c
@@ -347,7 +347,7 @@ static int em_i2c_unreg_slave(struct i2c_client *slave)
return 0;
}
-static struct i2c_algorithm em_i2c_algo = {
+static const struct i2c_algorithm em_i2c_algo = {
.master_xfer = em_i2c_xfer,
.functionality = em_i2c_func,
.reg_slave = em_i2c_reg_slave,
diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c
index c62b7cd..934f548 100644
--- a/drivers/i2c/busses/i2c-imx-lpi2c.c
+++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
@@ -537,7 +537,7 @@ static u32 lpi2c_imx_func(struct i2c_adapter *adapter)
I2C_FUNC_SMBUS_READ_BLOCK_DATA;
}
-static struct i2c_algorithm lpi2c_imx_algo = {
+static const struct i2c_algorithm lpi2c_imx_algo = {
.master_xfer = lpi2c_imx_xfer,
.functionality = lpi2c_imx_func,
};
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 47fc1f1..95ed171 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1037,7 +1037,7 @@ static u32 i2c_imx_func(struct i2c_adapter *adapter)
| I2C_FUNC_SMBUS_READ_BLOCK_DATA;
}
-static struct i2c_algorithm i2c_imx_algo = {
+static const struct i2c_algorithm i2c_imx_algo = {
.master_xfer = i2c_imx_xfer,
.functionality = i2c_imx_func,
};
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 374b35e..3241bb9 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -296,7 +296,7 @@ static u32 nforce2_func(struct i2c_adapter *adapter)
I2C_FUNC_SMBUS_BLOCK_DATA : 0);
}
-static struct i2c_algorithm smbus_algorithm = {
+static const struct i2c_algorithm smbus_algorithm = {
.smbus_xfer = nforce2_access,
.functionality = nforce2_func,
};
diff --git a/drivers/i2c/busses/i2c-robotfuzz-osif.c b/drivers/i2c/busses/i2c-robotfuzz-osif.c
index 89d8b41..9c0f52b 100644
--- a/drivers/i2c/busses/i2c-robotfuzz-osif.c
+++ b/drivers/i2c/busses/i2c-robotfuzz-osif.c
@@ -117,7 +117,7 @@ static u32 osif_func(struct i2c_adapter *adapter)
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
-static struct i2c_algorithm osif_algorithm = {
+static const struct i2c_algorithm osif_algorithm = {
.master_xfer = osif_xfer,
.functionality = osif_func,
};
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 3d9ebe6..3d75593 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -781,7 +781,7 @@ static u32 sh_mobile_i2c_func(struct i2c_adapter *adapter)
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_PROTOCOL_MANGLING;
}
-static struct i2c_algorithm sh_mobile_i2c_algorithm = {
+static const struct i2c_algorithm sh_mobile_i2c_algorithm = {
.functionality = sh_mobile_i2c_func,
.master_xfer = sh_mobile_i2c_xfer,
};
diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c
index 1371547..1eb9fa8 100644
--- a/drivers/i2c/busses/i2c-st.c
+++ b/drivers/i2c/busses/i2c-st.c
@@ -776,7 +776,7 @@ static u32 st_i2c_func(struct i2c_adapter *adap)
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
-static struct i2c_algorithm st_i2c_algo = {
+static const struct i2c_algorithm st_i2c_algo = {
.master_xfer = st_i2c_xfer,
.functionality = st_i2c_func,
};
diff --git a/drivers/i2c/busses/i2c-xgene-slimpro.c b/drivers/i2c/busses/i2c-xgene-slimpro.c
index 0ab1e55..dbe7e44 100644
--- a/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -372,7 +372,7 @@ static u32 xgene_slimpro_i2c_func(struct i2c_adapter *adapter)
I2C_FUNC_SMBUS_I2C_BLOCK;
}
-static struct i2c_algorithm xgene_slimpro_i2c_algorithm = {
+static const struct i2c_algorithm xgene_slimpro_i2c_algorithm = {
.smbus_xfer = xgene_slimpro_i2c_xfer,
.functionality = xgene_slimpro_i2c_func,
};
diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c
index 84a8b2e..66b464d 100644
--- a/drivers/i2c/busses/i2c-xlp9xx.c
+++ b/drivers/i2c/busses/i2c-xlp9xx.c
@@ -334,7 +334,7 @@ static u32 xlp9xx_i2c_functionality(struct i2c_adapter *adapter)
I2C_FUNC_10BIT_ADDR;
}
-static struct i2c_algorithm xlp9xx_i2c_algo = {
+static const struct i2c_algorithm xlp9xx_i2c_algo = {
.master_xfer = xlp9xx_i2c_xfer,
.functionality = xlp9xx_i2c_functionality,
};
diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c
index ad17d88..484bfa1 100644
--- a/drivers/i2c/busses/i2c-xlr.c
+++ b/drivers/i2c/busses/i2c-xlr.c
@@ -335,7 +335,7 @@ static u32 xlr_func(struct i2c_adapter *adap)
return (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK) | I2C_FUNC_I2C;
}
-static struct i2c_algorithm xlr_i2c_algo = {
+static const struct i2c_algorithm xlr_i2c_algo = {
.master_xfer = xlr_i2c_xfer,
.functionality = xlr_func,
};
--
1.9.1
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