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linux/drivers/leds
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Christophe JAILLET b37765649b leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu' 
[ Upstream commit ff50f53276 ]

In order to teach the compiler that 'trig->name' will never be truncated,
we need to tell it that 'cpu' is not negative.

When building with W=1, this fixes the following warnings:

  drivers/leds/trigger/ledtrig-cpu.c: In function ‘ledtrig_cpu_init’:
  drivers/leds/trigger/ledtrig-cpu.c:155:56: error: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size 5 [-Werror=format-truncation=]
    155 |                 snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu);
        |                                                        ^~
  drivers/leds/trigger/ledtrig-cpu.c:155:52: note: directive argument in the range [-2147483648, 7]
    155 |                 snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu);
        |                                                    ^~~~~~~
  drivers/leds/trigger/ledtrig-cpu.c:155:17: note: ‘snprintf’ output between 5 and 15 bytes into a destination of size 8
    155 |                 snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu);
        |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 8f88731d05 ("led-triggers: create a trigger for CPU activity")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/3f4be7a99933cf8566e630da54f6ab913caac432.1695453322.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:59:24 +01:00
..
blink leds: bcm63138: Rename dependency symbol ARCH_BCM4908 to ARCH_BCMBCA 2023-07-28 09:59:58 +01:00
flash leds: flash: leds-qcom-flash: Put child node if registration failed 2023-07-28 12:17:40 +01:00
rgb leds: rgb: Add a multicolor LED driver to group monochromatic LEDs 2023-08-17 09:01:00 +01:00
simple - Core Frameworks 2023-09-04 13:52:58 -07:00
trigger leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu' 2023-11-20 11:59:24 +01:00
Kconfig leds: pca995x: Add support for PCA995X chips 2023-07-28 09:26:28 +01:00
led-class-flash.c
led-class-multicolor.c leds: multicolor: Use rounded division when calculating color components 2023-08-17 11:25:03 +01:00
led-class.c leds: Make leds_class a static const structure 2023-08-18 08:43:11 +01:00
led-core.c leds: Drop BUG_ON check for LED_COLOR_ID_MULTI 2023-09-19 15:16:23 +01:00
led-triggers.c leds: Clear LED_INIT_DEFAULT_TRIGGER when clearing current trigger 2023-05-25 12:16:33 +01:00
leds-88pm860x.c
leds-acer-a500.c
leds-adp5520.c
leds-an30259a.c leds: Remove redundant of_match_ptr() 2023-08-17 13:28:25 +01:00
leds-apu.c
leds-ariel.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-aw200xx.c leds: aw200xx: Switch back to use struct i2c_driver::probe 2023-07-28 09:26:20 +01:00
leds-aw2013.c leds: aw2013: Enable pull-up supply for interrupt and I2C 2023-08-18 16:47:21 +01:00
leds-bcm6328.c leds: bcm6328: Get rid of custom led_init_default_state_get() 2023-01-30 08:03:37 +00:00
leds-bcm6358.c leds: bcm6358: Get rid of custom led_init_default_state_get() 2023-01-30 08:03:38 +00:00
leds-bd2606mvv.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-bd2802.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-blinkm.c leds: blinkm: Replace all non-returning strlcpy with strscpy 2023-05-25 12:31:18 +01:00
leds-cht-wcove.c leds: cht-wcove: Remove unneeded semicolon 2023-06-08 18:11:14 +01:00
leds-clevo-mail.c
leds-cobalt-qube.c
leds-cobalt-raq.c
leds-cpcap.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-cr0014114.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-da903x.c
leds-da9052.c
leds-dac124s085.c
leds-el15203000.c
leds-gpio-register.c
leds-gpio.c leds: gpio: Configure per-LED pin control 2023-05-25 12:34:30 +01:00
leds-hp6xx.c
leds-ip30.c leds: ip30: Convert to devm_platform_ioremap_resource() 2023-07-28 09:26:21 +01:00
leds-ipaq-micro.c
leds-is31fl32xx.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-is31fl319x.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm355x.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm3530.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm3532.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm3533.c
leds-lm3642.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm3692x.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm3697.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lm36274.c
leds-locomo.c
leds-lp50xx.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lp55xx-common.c leds: lp55xx: Configure internal charge pump 2023-05-25 12:16:05 +01:00
leds-lp55xx-common.h
leds-lp3944.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lp3952.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lp5521.c leds: Remove redundant of_match_ptr() 2023-08-17 13:28:25 +01:00
leds-lp5523.c leds: Remove redundant of_match_ptr() 2023-08-17 13:28:25 +01:00
leds-lp5562.c leds: Remove redundant of_match_ptr() 2023-08-17 13:28:25 +01:00
leds-lp8501.c leds: Remove redundant of_match_ptr() 2023-08-17 13:28:25 +01:00
leds-lp8788.c
leds-lp8860.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-lt3593.c
leds-max8997.c
leds-max77650.c
leds-mc13783.c
leds-menf21bmc.c
leds-mlxcpld.c
leds-mlxreg.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-mt6323.c leds: leds-mt6323: Adjust return/parameter types in wled get/set callbacks 2023-06-23 10:57:14 +01:00
leds-net48xx.c
leds-netxbig.c
leds-nic78bx.c
leds-ns2.c leds: ns2: Slightly simplify a memory allocation 2023-07-28 11:58:04 +01:00
leds-ot200.c
leds-pca955x.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-pca963x.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-pca995x.c leds: pca995x: Fix MODULE_DEVICE_TABLE for OF 2023-08-15 18:30:07 +01:00
leds-pca9532.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-pm8058.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-powernv.c
leds-pwm.c leds: pwm: Don't disable the PWM when the LED should be off 2023-11-20 11:59:24 +01:00
leds-rb532.c
leds-regulator.c
leds-sc27xx-bltc.c
leds-spi-byte.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-ss4200.c
leds-sunfire.c
leds-syscon.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-tca6507.c leds: Switch i2c drivers back to use .probe() 2023-05-25 12:16:22 +01:00
leds-ti-lmu-common.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-tlc591xx.c leds: Explicitly include correct DT includes 2023-07-28 10:02:32 +01:00
leds-tps6105x.c
leds-turris-omnia.c leds: turris-omnia: Do not use SMBUS calls 2023-11-20 11:59:24 +01:00
leds-wm831x-status.c
leds-wm8350.c
leds-wrap.c
leds.h leds: Move led_init_default_state_get() to the global header 2023-01-30 08:03:35 +00:00
Makefile leds: pca995x: Add support for PCA995X chips 2023-07-28 09:26:28 +01:00
TODO
uleds.c leds: uleds: Use module_misc_device macro to simplify the code 2023-08-18 11:42:54 +01:00