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Message-ID: <5C4C191B.9040702@zoho.com>
Date: Sat, 26 Jan 2019 16:23:55 +0800
From: Zhou Yanjie <zhouyanjie@...o.com>
To: Paul Cercueil <paul@...pouillou.net>
Cc: linus.walleij@...aro.org, linux-mips@...r.kernel.org,
linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
paul.burton@...s.com, syq@...ian.org, jiaxun.yang@...goat.com,
772753199@...com, apw@...onical.com, joe@...ches.com
Subject: Re: [PATCH RESEND 4/4] Pinctrl: Ingenic: Fix const declaration.
My fault, I checked it again, the reason for this problem is that the
member "pins" in structure "group_desc" is not a const type.
It did not report this warning when I used gcc-5.2.0.
After switching to gcc-6.3.0, the warning appeared.
Should we ignore the warning information given by checkpatch.pl?
On 2019年01月26日 01:59, Paul Cercueil wrote:
> Hi,
>
> On Fri, Jan 25, 2019 at 6:59 AM, Zhou Yanjie <zhouyanjie@...o.com> wrote:
>> Warning is reported when checkpatch indicates that
>> "static const char * array" should be changed to
>> "static const char * const".
>>
>> Signed-off-by: Zhou Yanjie <zhouyanjie@...o.com
>> <mailto:zhouyanjie@...o.com>>
>> ---
>> drivers/pinctrl/pinctrl-ingenic.c | 136
>> +++++++++++++++++++++-----------------
>> 1 file changed, 76 insertions(+), 60 deletions(-)
>>
>> diff --git a/drivers/pinctrl/pinctrl-ingenic.c
>> b/drivers/pinctrl/pinctrl-ingenic.c
>> index 2b3f7e4..e982896 100644
>> --- a/drivers/pinctrl/pinctrl-ingenic.c
>> +++ b/drivers/pinctrl/pinctrl-ingenic.c
>> @@ -172,23 +172,25 @@ static const struct group_desc jz4740_groups[] = {
>> INGENIC_PIN_GROUP("pwm7", jz4740_pwm_pwm7),
>> };
>>
>> -static const char *jz4740_mmc_groups[] = { "mmc-1bit", "mmc-4bit", };
>> -static const char *jz4740_uart0_groups[] = { "uart0-data",
>> "uart0-hwflow", };
>> -static const char *jz4740_uart1_groups[] = { "uart1-data", };
>> -static const char *jz4740_lcd_groups[] = {
>> +static const char * const jz4740_mmc_groups[] = { "mmc-1bit",
>> "mmc-4bit", };
>> +static const char * const jz4740_uart0_groups[] = {
>> + "uart0-data", "uart0-hwflow",
>> +};
>> +static const char * const jz4740_uart1_groups[] = { "uart1-data", };
>> +static const char * const jz4740_lcd_groups[] = {
>> "lcd-8bit", "lcd-16bit", "lcd-18bit", "lcd-18bit-tft",
>> "lcd-no-pins",
>> };
>> -static const char *jz4740_nand_groups[] = {
>> +static const char * const jz4740_nand_groups[] = {
>> "nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4",
>> };
>> -static const char *jz4740_pwm0_groups[] = { "pwm0", };
>> -static const char *jz4740_pwm1_groups[] = { "pwm1", };
>> -static const char *jz4740_pwm2_groups[] = { "pwm2", };
>> -static const char *jz4740_pwm3_groups[] = { "pwm3", };
>> -static const char *jz4740_pwm4_groups[] = { "pwm4", };
>> -static const char *jz4740_pwm5_groups[] = { "pwm5", };
>> -static const char *jz4740_pwm6_groups[] = { "pwm6", };
>> -static const char *jz4740_pwm7_groups[] = { "pwm7", };
>> +static const char * const jz4740_pwm0_groups[] = { "pwm0", };
>> +static const char * const jz4740_pwm1_groups[] = { "pwm1", };
>> +static const char * const jz4740_pwm2_groups[] = { "pwm2", };
>> +static const char * const jz4740_pwm3_groups[] = { "pwm3", };
>> +static const char * const jz4740_pwm4_groups[] = { "pwm4", };
>> +static const char * const jz4740_pwm5_groups[] = { "pwm5", };
>> +static const char * const jz4740_pwm6_groups[] = { "pwm6", };
>> +static const char * const jz4740_pwm7_groups[] = { "pwm7", };
>>
>> static const struct function_desc jz4740_functions[] = {
>> { "mmc", jz4740_mmc_groups, ARRAY_SIZE(jz4740_mmc_groups), },
>
> With this patch applied I get this:
>
> drivers/pinctrl/pinctrl-ingenic.c:196:11: attention : initialization
> discards
> ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
> { "mmc", jz4740_mmc_groups, ARRAY_SIZE(jz4740_mmc_groups), },
> ^~~~~~~~~~~~~~~~~
>
>> @@ -272,19 +274,19 @@ static const struct group_desc jz4725b_groups[]
>> = {
>> INGENIC_PIN_GROUP("pwm5", jz4725b_pwm_pwm5),
>> };
>>
>> -static const char *jz4725b_mmc0_groups[] = { "mmc0-1bit",
>> "mmc0-4bit", };
>> -static const char *jz4725b_mmc1_groups[] = { "mmc1-1bit",
>> "mmc1-4bit", };
>> -static const char *jz4725b_uart_groups[] = { "uart-data", };
>> -static const char *jz4725b_nand_groups[] = {
>> +static const char * const jz4725b_mmc0_groups[] = { "mmc0-1bit",
>> "mmc0-4bit", };
>> +static const char * const jz4725b_mmc1_groups[] = { "mmc1-1bit",
>> "mmc1-4bit", };
>> +static const char * const jz4725b_uart_groups[] = { "uart-data", };
>> +static const char * const jz4725b_nand_groups[] = {
>> "nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4",
>> "nand-cle-ale", "nand-fre-fwe",
>> };
>> -static const char *jz4725b_pwm0_groups[] = { "pwm0", };
>> -static const char *jz4725b_pwm1_groups[] = { "pwm1", };
>> -static const char *jz4725b_pwm2_groups[] = { "pwm2", };
>> -static const char *jz4725b_pwm3_groups[] = { "pwm3", };
>> -static const char *jz4725b_pwm4_groups[] = { "pwm4", };
>> -static const char *jz4725b_pwm5_groups[] = { "pwm5", };
>> +static const char * const jz4725b_pwm0_groups[] = { "pwm0", };
>> +static const char * const jz4725b_pwm1_groups[] = { "pwm1", };
>> +static const char * const jz4725b_pwm2_groups[] = { "pwm2", };
>> +static const char * const jz4725b_pwm3_groups[] = { "pwm3", };
>> +static const char * const jz4725b_pwm4_groups[] = { "pwm4", };
>> +static const char * const jz4725b_pwm5_groups[] = { "pwm5", };
>>
>> static const struct function_desc jz4725b_functions[] = {
>> { "mmc0", jz4725b_mmc0_groups, ARRAY_SIZE(jz4725b_mmc0_groups), },
>> @@ -500,46 +502,56 @@ static const struct group_desc jz4770_groups[] = {
>> INGENIC_PIN_GROUP("mac-mii", jz4770_mac_mii),
>> };
>>
>> -static const char *jz4770_uart0_groups[] = { "uart0-data",
>> "uart0-hwflow", };
>> -static const char *jz4770_uart1_groups[] = { "uart1-data",
>> "uart1-hwflow", };
>> -static const char *jz4770_uart2_groups[] = { "uart2-data",
>> "uart2-hwflow", };
>> -static const char *jz4770_uart3_groups[] = { "uart3-data",
>> "uart3-hwflow", };
>> -static const char *jz4770_mmc0_groups[] = {
>> +static const char * const jz4770_uart0_groups[] = {
>> + "uart0-data", "uart0-hwflow",
>> +};
>> +static const char * const jz4770_uart1_groups[] = {
>> + "uart1-data", "uart1-hwflow",
>> +};
>> +static const char * const jz4770_uart2_groups[] = {
>> + "uart2-data", "uart2-hwflow",
>> +};
>> +static const char * const jz4770_uart3_groups[] = {
>> + "uart3-data", "uart3-hwflow",
>> +};
>> +static const char * const jz4770_mmc0_groups[] = {
>> "mmc0-1bit-a", "mmc0-4bit-a",
>> "mmc0-1bit-e", "mmc0-4bit-e", "mmc0-8bit-e",
>> };
>> -static const char *jz4770_mmc1_groups[] = {
>> +static const char * const jz4770_mmc1_groups[] = {
>> "mmc1-1bit-d", "mmc1-4bit-d",
>> "mmc1-1bit-e", "mmc1-4bit-e", "mmc1-8bit-e",
>> };
>> -static const char *jz4770_mmc2_groups[] = {
>> +static const char * const jz4770_mmc2_groups[] = {
>> "mmc2-1bit-b", "mmc2-4bit-b",
>> "mmc2-1bit-e", "mmc2-4bit-e", "mmc2-8bit-e",
>> };
>> -static const char *jz4770_nemc_groups[] = {
>> +static const char * const jz4770_nemc_groups[] = {
>> "nemc-8bit-data", "nemc-16bit-data", "nemc-cle-ale",
>> "nemc-addr", "nemc-rd-we", "nemc-frd-fwe", "nemc-wait",
>> };
>> -static const char *jz4770_cs1_groups[] = { "nemc-cs1", };
>> -static const char *jz4770_cs2_groups[] = { "nemc-cs2", };
>> -static const char *jz4770_cs3_groups[] = { "nemc-cs3", };
>> -static const char *jz4770_cs4_groups[] = { "nemc-cs4", };
>> -static const char *jz4770_cs5_groups[] = { "nemc-cs5", };
>> -static const char *jz4770_cs6_groups[] = { "nemc-cs6", };
>> -static const char *jz4770_i2c0_groups[] = { "i2c0-data", };
>> -static const char *jz4770_i2c1_groups[] = { "i2c1-data", };
>> -static const char *jz4770_i2c2_groups[] = { "i2c2-data", };
>> -static const char *jz4770_cim_groups[] = { "cim-data-8bit",
>> "cim-data-12bit", };
>> -static const char *jz4770_lcd_groups[] = { "lcd-24bit",
>> "lcd-no-pins", };
>> -static const char *jz4770_pwm0_groups[] = { "pwm0", };
>> -static const char *jz4770_pwm1_groups[] = { "pwm1", };
>> -static const char *jz4770_pwm2_groups[] = { "pwm2", };
>> -static const char *jz4770_pwm3_groups[] = { "pwm3", };
>> -static const char *jz4770_pwm4_groups[] = { "pwm4", };
>> -static const char *jz4770_pwm5_groups[] = { "pwm5", };
>> -static const char *jz4770_pwm6_groups[] = { "pwm6", };
>> -static const char *jz4770_pwm7_groups[] = { "pwm7", };
>> -static const char *jz4770_mac_groups[] = { "mac-rmii", "mac-mii", };
>> +static const char * const jz4770_cs1_groups[] = { "nemc-cs1", };
>> +static const char * const jz4770_cs2_groups[] = { "nemc-cs2", };
>> +static const char * const jz4770_cs3_groups[] = { "nemc-cs3", };
>> +static const char * const jz4770_cs4_groups[] = { "nemc-cs4", };
>> +static const char * const jz4770_cs5_groups[] = { "nemc-cs5", };
>> +static const char * const jz4770_cs6_groups[] = { "nemc-cs6", };
>> +static const char * const jz4770_i2c0_groups[] = { "i2c0-data", };
>> +static const char * const jz4770_i2c1_groups[] = { "i2c1-data", };
>> +static const char * const jz4770_i2c2_groups[] = { "i2c2-data", };
>> +static const char * const jz4770_cim_groups[] = {
>> + "cim-data-8bit", "cim-data-12bit",
>> +};
>> +static const char * const jz4770_lcd_groups[] = { "lcd-24bit",
>> "lcd-no-pins", };
>> +static const char * const jz4770_pwm0_groups[] = { "pwm0", };
>> +static const char * const jz4770_pwm1_groups[] = { "pwm1", };
>> +static const char * const jz4770_pwm2_groups[] = { "pwm2", };
>> +static const char * const jz4770_pwm3_groups[] = { "pwm3", };
>> +static const char * const jz4770_pwm4_groups[] = { "pwm4", };
>> +static const char * const jz4770_pwm5_groups[] = { "pwm5", };
>> +static const char * const jz4770_pwm6_groups[] = { "pwm6", };
>> +static const char * const jz4770_pwm7_groups[] = { "pwm7", };
>> +static const char * const jz4770_mac_groups[] = { "mac-rmii",
>> "mac-mii", };
>>
>> static const struct function_desc jz4770_functions[] = {
>> { "uart0", jz4770_uart0_groups, ARRAY_SIZE(jz4770_uart0_groups), },
>> @@ -652,25 +664,29 @@ static const struct group_desc jz4780_groups[] = {
>> INGENIC_PIN_GROUP("pwm7", jz4770_pwm_pwm7),
>> };
>>
>> -static const char *jz4780_uart2_groups[] = { "uart2-data",
>> "uart2-hwflow", };
>> -static const char *jz4780_uart4_groups[] = { "uart4-data", };
>> -static const char *jz4780_mmc0_groups[] = {
>> +static const char * const jz4780_uart2_groups[] = {
>> + "uart2-data", "uart2-hwflow",
>> +};
>> +static const char * const jz4780_uart4_groups[] = { "uart4-data", };
>> +static const char * const jz4780_mmc0_groups[] = {
>> "mmc0-1bit-a", "mmc0-4bit-a", "mmc0-8bit-a",
>> "mmc0-1bit-e", "mmc0-4bit-e",
>> };
>> -static const char *jz4780_mmc1_groups[] = {
>> +static const char * const jz4780_mmc1_groups[] = {
>> "mmc1-1bit-d", "mmc1-4bit-d", "mmc1-1bit-e", "mmc1-4bit-e",
>> };
>> -static const char *jz4780_mmc2_groups[] = {
>> +static const char * const jz4780_mmc2_groups[] = {
>> "mmc2-1bit-b", "mmc2-4bit-b", "mmc2-1bit-e", "mmc2-4bit-e",
>> };
>> -static const char *jz4780_nemc_groups[] = {
>> +static const char * const jz4780_nemc_groups[] = {
>> "nemc-data", "nemc-cle-ale", "nemc-addr",
>> "nemc-rd-we", "nemc-frd-fwe", "nemc-wait",
>> };
>> -static const char *jz4780_i2c3_groups[] = { "i2c3-data", };
>> -static const char *jz4780_i2c4_groups[] = { "i2c4-data-e",
>> "i2c4-data-f", };
>> -static const char *jz4780_cim_groups[] = { "cim-data", };
>> +static const char * const jz4780_i2c3_groups[] = { "i2c3-data", };
>> +static const char * const jz4780_i2c4_groups[] = {
>> + "i2c4-data-e", "i2c4-data-f",
>> +};
>> +static const char * const jz4780_cim_groups[] = { "cim-data", };
>>
>> static const struct function_desc jz4780_functions[] = {
>> { "uart0", jz4770_uart0_groups, ARRAY_SIZE(jz4770_uart0_groups), },
>> --
>> 2.7.4
>>
>>
>
>
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