From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
To: Randy Dunlap <rdunlap@infradead.org>, linux-kernel@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
linux-sh@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Subject: Re: [PATCH 3/3 v2] sh: fix READ/WRITE redefinition warnings
Date: Wed, 30 Jun 2021 21:36:17 +0200 [thread overview]
Message-ID: <d1e925b1-b0ef-2e00-ea79-b5ff2be3cf4c@physik.fu-berlin.de> (raw)
In-Reply-To: <8efd6e1d-9949-9598-9e6b-41d9b2f4ea7a@infradead.org>
On 6/30/21 9:33 PM, Randy Dunlap wrote:
> On 6/30/21 2:36 AM, John Paul Adrian Glaubitz wrote:
>> On 6/28/21 12:05 AM, Randy Dunlap wrote:
>>> kernel.h defines READ and WRITE, so rename the SH math-emu macros
>>> to MREAD and MWRITE.
>>>
>>> Fixes these warnings:
>>>
>>> ../arch/sh/math-emu/math.c:54: warning: "WRITE" redefined
>>> 54 | #define WRITE(d,a) ({if(put_user(d, (typeof (d) __user *)a)) return -EFAULT;})
>>> In file included from ../arch/sh/math-emu/math.c:10:
>>> ../include/linux/kernel.h:37: note: this is the location of the previous definition
>>> 37 | #define WRITE 1
>>> ../arch/sh/math-emu/math.c:55: warning: "READ" redefined
>>> 55 | #define READ(d,a) ({if(get_user(d, (typeof (d) __user *)a)) return -EFAULT;})
>>> In file included from ../arch/sh/math-emu/math.c:10:
>>> ../include/linux/kernel.h:36: note: this is the location of the previous definition
>>> 36 | #define READ 0
>>>
>>> Fixes: 4b565680d163 ("sh: math-emu support")
>>> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
>>> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
>>> Cc: Rich Felker <dalias@libc.org>
>>> Cc: linux-sh@vger.kernel.org
>>> Cc: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
>>> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
>>> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
>>> ---
>>> v2: renumber patches, otherwise no change;
>>>
>>> arch/sh/math-emu/math.c | 44 +++++++++++++++++++-------------------
>>> 1 file changed, 22 insertions(+), 22 deletions(-)
>>>
>>> --- linux-next-20210625.orig/arch/sh/math-emu/math.c
>>> +++ linux-next-20210625/arch/sh/math-emu/math.c
>>> @@ -51,8 +51,8 @@
>>> #define Rn (regs->regs[n])
>>> #define Rm (regs->regs[m])
>>>
>>> -#define WRITE(d,a) ({if(put_user(d, (typeof (d) __user *)a)) return -EFAULT;})
>>> -#define READ(d,a) ({if(get_user(d, (typeof (d) __user *)a)) return -EFAULT;})
>>> +#define MWRITE(d,a) ({if(put_user(d, (typeof (d) __user *)a)) return -EFAULT;})
>>> +#define MREAD(d,a) ({if(get_user(d, (typeof (d) __user *)a)) return -EFAULT;})
>>>
>>> #define PACK_S(r,f) FP_PACK_SP(&r,f)
>>> #define UNPACK_S(f,r) FP_UNPACK_SP(f,&r)
>>> @@ -157,11 +157,11 @@ fmov_idx_reg(struct sh_fpu_soft_struct *
>>> {
>>> if (FPSCR_SZ) {
>>> FMOV_EXT(n);
>>> - READ(FRn, Rm + R0 + 4);
>>> + MREAD(FRn, Rm + R0 + 4);
>>> n++;
>>> - READ(FRn, Rm + R0);
>>> + MREAD(FRn, Rm + R0);
>>> } else {
>>> - READ(FRn, Rm + R0);
>>> + MREAD(FRn, Rm + R0);
>>> }
>>>
>>> return 0;
>>> @@ -173,11 +173,11 @@ fmov_mem_reg(struct sh_fpu_soft_struct *
>>> {
>>> if (FPSCR_SZ) {
>>> FMOV_EXT(n);
>>> - READ(FRn, Rm + 4);
>>> + MREAD(FRn, Rm + 4);
>>> n++;
>>> - READ(FRn, Rm);
>>> + MREAD(FRn, Rm);
>>> } else {
>>> - READ(FRn, Rm);
>>> + MREAD(FRn, Rm);
>>> }
>>>
>>> return 0;
>>> @@ -189,12 +189,12 @@ fmov_inc_reg(struct sh_fpu_soft_struct *
>>> {
>>> if (FPSCR_SZ) {
>>> FMOV_EXT(n);
>>> - READ(FRn, Rm + 4);
>>> + MREAD(FRn, Rm + 4);
>>> n++;
>>> - READ(FRn, Rm);
>>> + MREAD(FRn, Rm);
>>> Rm += 8;
>>> } else {
>>> - READ(FRn, Rm);
>>> + MREAD(FRn, Rm);
>>> Rm += 4;
>>> }
>>>
>>> @@ -207,11 +207,11 @@ fmov_reg_idx(struct sh_fpu_soft_struct *
>>> {
>>> if (FPSCR_SZ) {
>>> FMOV_EXT(m);
>>> - WRITE(FRm, Rn + R0 + 4);
>>> + MWRITE(FRm, Rn + R0 + 4);
>>> m++;
>>> - WRITE(FRm, Rn + R0);
>>> + MWRITE(FRm, Rn + R0);
>>> } else {
>>> - WRITE(FRm, Rn + R0);
>>> + MWRITE(FRm, Rn + R0);
>>> }
>>>
>>> return 0;
>>> @@ -223,11 +223,11 @@ fmov_reg_mem(struct sh_fpu_soft_struct *
>>> {
>>> if (FPSCR_SZ) {
>>> FMOV_EXT(m);
>>> - WRITE(FRm, Rn + 4);
>>> + MWRITE(FRm, Rn + 4);
>>> m++;
>>> - WRITE(FRm, Rn);
>>> + MWRITE(FRm, Rn);
>>> } else {
>>> - WRITE(FRm, Rn);
>>> + MWRITE(FRm, Rn);
>>> }
>>>
>>> return 0;
>>> @@ -240,12 +240,12 @@ fmov_reg_dec(struct sh_fpu_soft_struct *
>>> if (FPSCR_SZ) {
>>> FMOV_EXT(m);
>>> Rn -= 8;
>>> - WRITE(FRm, Rn + 4);
>>> + MWRITE(FRm, Rn + 4);
>>> m++;
>>> - WRITE(FRm, Rn);
>>> + MWRITE(FRm, Rn);
>>> } else {
>>> Rn -= 4;
>>> - WRITE(FRm, Rn);
>>> + MWRITE(FRm, Rn);
>>> }
>>>
>>> return 0;
>>> @@ -445,11 +445,11 @@ id_sys(struct sh_fpu_soft_struct *fregs,
>>> case 0x4052:
>>> case 0x4062:
>>> Rn -= 4;
>>> - WRITE(*reg, Rn);
>>> + MWRITE(*reg, Rn);
>>> break;
>>> case 0x4056:
>>> case 0x4066:
>>> - READ(*reg, Rn);
>>> + MREAD(*reg, Rn);
>>> Rn += 4;
>>> break;
>>> default:
>>>
>>
>> This one no longer applies to Linus' tree:
>>
>> glaubitz@node54:/data/home/glaubitz/linux> git am ../sh-patches-2021/\[PATCH\ 3_3\ v2\]\ sh\:\ fix\ READ_WRITE\ redefinition\ warnings.eml
>> Applying: sh: fix READ/WRITE redefinition warnings
>> error: patch failed: arch/sh/math-emu/math.c:51
>> error: arch/sh/math-emu/math.c: patch does not apply
>> Patch failed at 0001 sh: fix READ/WRITE redefinition warnings
>> hint: Use 'git am --show-current-patch=diff' to see the failed patch
>> When you have resolved this problem, run "git am --continue".
>> If you prefer to skip this patch, run "git am --skip" instead.
>> To restore the original branch and stop patching, run "git am --abort".
>> glaubitz@node54:/data/home/glaubitz/linux>
>
> OK. Thanks for all of the testing.
I'll report back with the other patch applied that Geert mentioned from linux-next before this one.
FWIW, there are some warnings when building the SH-7785LCR configuration:
In file included from ./arch/sh/include/asm/hw_irq.h:6,
from ./include/linux/irq.h:591,
from ./include/asm-generic/hardirq.h:17,
from ./arch/sh/include/asm/hardirq.h:9,
from ./include/linux/hardirq.h:11,
from ./include/linux/interrupt.h:11,
from ./include/linux/serial_core.h:13,
from ./include/linux/serial_sci.h:6,
from arch/sh/kernel/cpu/sh4a/setup-sh7785.c:10:
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:107:9: note: in expansion of macro '_INTC_ARRAY'
107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:478:8: note: in expansion of macro 'DECLARE_INTC_DESC'
478 | static DECLARE_INTC_DESC(intc_desc, "sh7785", vectors, groups,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:478:8: note: in expansion of macro 'DECLARE_INTC_DESC'
478 | static DECLARE_INTC_DESC(intc_desc, "sh7785", vectors, groups,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:105:31: note: in expansion of macro '_INTC_ARRAY'
105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:132:15: note: in expansion of macro 'INTC_HW_DESC'
132 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:503:8: note: in expansion of macro 'DECLARE_INTC_DESC_ACK'
503 | static DECLARE_INTC_DESC_ACK(intc_desc_irq0123, "sh7785-irq0123",
| ^~~~~~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:105:31: note: in expansion of macro '_INTC_ARRAY'
105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:132:15: note: in expansion of macro 'INTC_HW_DESC'
132 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:507:8: note: in expansion of macro 'DECLARE_INTC_DESC_ACK'
507 | static DECLARE_INTC_DESC_ACK(intc_desc_irq4567, "sh7785-irq4567",
| ^~~~~~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:105:31: note: in expansion of macro '_INTC_ARRAY'
105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:535:8: note: in expansion of macro 'DECLARE_INTC_DESC'
535 | static DECLARE_INTC_DESC(intc_desc_irl0123, "sh7785-irl0123", vectors_irl0123,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:106:33: note: in expansion of macro '_INTC_ARRAY'
106 | _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:535:8: note: in expansion of macro 'DECLARE_INTC_DESC'
535 | static DECLARE_INTC_DESC(intc_desc_irl0123, "sh7785-irl0123", vectors_irl0123,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:107:9: note: in expansion of macro '_INTC_ARRAY'
107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:535:8: note: in expansion of macro 'DECLARE_INTC_DESC'
535 | static DECLARE_INTC_DESC(intc_desc_irl0123, "sh7785-irl0123", vectors_irl0123,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:535:8: note: in expansion of macro 'DECLARE_INTC_DESC'
535 | static DECLARE_INTC_DESC(intc_desc_irl0123, "sh7785-irl0123", vectors_irl0123,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:105:31: note: in expansion of macro '_INTC_ARRAY'
105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:538:8: note: in expansion of macro 'DECLARE_INTC_DESC'
538 | static DECLARE_INTC_DESC(intc_desc_irl4567, "sh7785-irl4567", vectors_irl4567,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:106:33: note: in expansion of macro '_INTC_ARRAY'
106 | _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:538:8: note: in expansion of macro 'DECLARE_INTC_DESC'
538 | static DECLARE_INTC_DESC(intc_desc_irl4567, "sh7785-irl4567", vectors_irl4567,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:107:9: note: in expansion of macro '_INTC_ARRAY'
107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:538:8: note: in expansion of macro 'DECLARE_INTC_DESC'
538 | static DECLARE_INTC_DESC(intc_desc_irl4567, "sh7785-irl4567", vectors_irl4567,
| ^~~~~~~~~~~~~~~~~
./include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
| ^
./include/linux/sh_intc.h:107:34: note: in expansion of macro '_INTC_ARRAY'
107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
| ^~~~~~~~~~~
./include/linux/sh_intc.h:124:15: note: in expansion of macro 'INTC_HW_DESC'
124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
| ^~~~~~~~~~~~
arch/sh/kernel/cpu/sh4a/setup-sh7785.c:538:8: note: in expansion of macro 'DECLARE_INTC_DESC'
538 | static DECLARE_INTC_DESC(intc_desc_irl4567, "sh7785-irl4567", vectors_irl4567,
| ^~~~~~~~~~~~~~~~~
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
next prev parent reply other threads:[~2021-06-30 19:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-27 22:05 [PATCH 0/3 v2] sh: fixes for various build and kconfig warnings Randy Dunlap
2021-06-27 22:05 ` [PATCH 1/3 v2] sh: fix kconfig unmet dependency warning for FRAME_POINTER Randy Dunlap
2021-06-28 8:44 ` Geert Uytterhoeven
2021-06-30 9:32 ` John Paul Adrian Glaubitz
2021-06-27 22:05 ` [PATCH 2/3 v2] sh: define __BIG_ENDIAN for math-emu Randy Dunlap
2021-06-30 9:35 ` John Paul Adrian Glaubitz
2021-06-27 22:05 ` [PATCH 3/3 v2] sh: fix READ/WRITE redefinition warnings Randy Dunlap
2021-06-28 8:46 ` Geert Uytterhoeven
2021-06-30 9:36 ` John Paul Adrian Glaubitz
2021-06-30 9:42 ` Geert Uytterhoeven
2021-06-30 19:33 ` Randy Dunlap
2021-06-30 19:36 ` John Paul Adrian Glaubitz [this message]
2021-07-01 8:41 ` Geert Uytterhoeven
2021-07-01 11:57 ` Arnd Bergmann
2021-07-02 9:25 ` John Paul Adrian Glaubitz
2021-06-27 22:26 ` [PATCH 0/3 v2] sh: fixes for various build and kconfig warnings John Paul Adrian Glaubitz
2021-06-27 22:30 ` Randy Dunlap
2021-06-27 22:36 ` John Paul Adrian Glaubitz
2021-06-29 21:49 ` John Paul Adrian Glaubitz
2021-09-08 20:19 ` Randy Dunlap
2021-09-09 8:25 ` John Paul Adrian Glaubitz
2021-09-09 9:08 ` Daniel Palmer
2021-09-12 1:57 ` Rich Felker
2021-09-12 10:36 ` John Paul Adrian Glaubitz
2021-09-12 17:25 ` Rob Landley
2021-09-22 2:45 ` Rich Felker
2021-09-23 14:37 ` John Paul Adrian Glaubitz
2021-10-08 18:29 ` John Paul Adrian Glaubitz
2021-09-13 11:53 ` Daniel Palmer
2021-09-09 17:44 ` Rob Landley
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