mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 23:25:54 +00:00
6396bb2215
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:
kzalloc(a * b, gfp)
with:
kcalloc(a * b, gfp)
as well as handling cases of:
kzalloc(a * b * c, gfp)
with:
kzalloc(array3_size(a, b, c), gfp)
as it's slightly less ugly than:
kzalloc_array(array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
kzalloc(4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@
(
kzalloc(
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
|
kzalloc(
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@
(
kzalloc(
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(char) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(u8) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(__u8) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(char) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@
- kzalloc
+ kcalloc
(
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
kzalloc(
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
kzalloc(
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kzalloc(
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@
(
kzalloc(
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
kzalloc(C1 * C2 * C3, ...)
|
kzalloc(
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
kzalloc(sizeof(THING) * C2, ...)
|
kzalloc(sizeof(TYPE) * C2, ...)
|
kzalloc(C1 * C2 * C3, ...)
|
kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- (E1) * E2
+ E1, E2
, ...)
|
- kzalloc
+ kcalloc
(
- (E1) * (E2)
+ E1, E2
, ...)
|
- kzalloc
+ kcalloc
(
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
|
||
|---|---|---|
| .. | ||
| pmbus | ||
| ab8500.c | ||
| abituguru3.c | ||
| abituguru.c | ||
| abx500.c | ||
| abx500.h | ||
| acpi_power_meter.c | ||
| ad7314.c | ||
| ad7414.c | ||
| ad7418.c | ||
| adc128d818.c | ||
| adcxx.c | ||
| adm1021.c | ||
| adm1025.c | ||
| adm1026.c | ||
| adm1029.c | ||
| adm1031.c | ||
| adm9240.c | ||
| ads1015.c | ||
| ads7828.c | ||
| ads7871.c | ||
| adt7x10.c | ||
| adt7x10.h | ||
| adt7310.c | ||
| adt7410.c | ||
| adt7411.c | ||
| adt7462.c | ||
| adt7470.c | ||
| adt7475.c | ||
| amc6821.c | ||
| applesmc.c | ||
| asb100.c | ||
| asc7621.c | ||
| aspeed-pwm-tacho.c | ||
| asus_atk0110.c | ||
| atxp1.c | ||
| coretemp.c | ||
| da9052-hwmon.c | ||
| da9055-hwmon.c | ||
| dell-smm-hwmon.c | ||
| dme1737.c | ||
| ds620.c | ||
| ds1621.c | ||
| emc6w201.c | ||
| emc1403.c | ||
| emc2103.c | ||
| f71805f.c | ||
| f71882fg.c | ||
| f75375s.c | ||
| fam15h_power.c | ||
| fschmd.c | ||
| ftsteutates.c | ||
| g760a.c | ||
| g762.c | ||
| gl518sm.c | ||
| gl520sm.c | ||
| gpio-fan.c | ||
| hih6130.c | ||
| hwmon-vid.c | ||
| hwmon.c | ||
| i5k_amb.c | ||
| i5500_temp.c | ||
| ibmaem.c | ||
| ibmpex.c | ||
| ibmpowernv.c | ||
| iio_hwmon.c | ||
| ina2xx.c | ||
| ina209.c | ||
| ina3221.c | ||
| it87.c | ||
| jc42.c | ||
| jz4740-hwmon.c | ||
| k8temp.c | ||
| k10temp.c | ||
| Kconfig | ||
| lineage-pem.c | ||
| lm63.c | ||
| lm70.c | ||
| lm73.c | ||
| lm75.c | ||
| lm75.h | ||
| lm77.c | ||
| lm78.c | ||
| lm80.c | ||
| lm83.c | ||
| lm85.c | ||
| lm87.c | ||
| lm90.c | ||
| lm92.c | ||
| lm93.c | ||
| lm95234.c | ||
| lm95241.c | ||
| lm95245.c | ||
| ltc2945.c | ||
| ltc2990.c | ||
| ltc4151.c | ||
| ltc4215.c | ||
| ltc4222.c | ||
| ltc4245.c | ||
| ltc4260.c | ||
| ltc4261.c | ||
| ltq-cputemp.c | ||
| Makefile | ||
| max197.c | ||
| max1111.c | ||
| max1619.c | ||
| max1668.c | ||
| max6621.c | ||
| max6639.c | ||
| max6642.c | ||
| max6650.c | ||
| max6697.c | ||
| max16065.c | ||
| max31722.c | ||
| max31790.c | ||
| mc13783-adc.c | ||
| mcp3021.c | ||
| menf21bmc_hwmon.c | ||
| nct6683.c | ||
| nct6775.c | ||
| nct7802.c | ||
| nct7904.c | ||
| nsa320-hwmon.c | ||
| ntc_thermistor.c | ||
| pc87360.c | ||
| pc87427.c | ||
| pcf8591.c | ||
| powr1220.c | ||
| pwm-fan.c | ||
| s3c-hwmon.c | ||
| sch56xx-common.c | ||
| sch56xx-common.h | ||
| sch5627.c | ||
| sch5636.c | ||
| scmi-hwmon.c | ||
| scpi-hwmon.c | ||
| sht3x.c | ||
| sht15.c | ||
| sht21.c | ||
| shtc1.c | ||
| sis5595.c | ||
| smm665.c | ||
| smsc47b397.c | ||
| smsc47m1.c | ||
| smsc47m192.c | ||
| stts751.c | ||
| tc74.c | ||
| tc654.c | ||
| thmc50.c | ||
| tmp102.c | ||
| tmp103.c | ||
| tmp108.c | ||
| tmp401.c | ||
| tmp421.c | ||
| ultra45_env.c | ||
| vexpress-hwmon.c | ||
| via686a.c | ||
| via-cputemp.c | ||
| vt1211.c | ||
| vt8231.c | ||
| w83l785ts.c | ||
| w83l786ng.c | ||
| w83627ehf.c | ||
| w83627hf.c | ||
| w83773g.c | ||
| w83781d.c | ||
| w83791d.c | ||
| w83792d.c | ||
| w83793.c | ||
| w83795.c | ||
| wm831x-hwmon.c | ||
| wm8350-hwmon.c | ||
| xgene-hwmon.c | ||