linux-kernel - Re: [PATCH v2 1/3] sysfs: constify bin_attribute argument of sysfs_bin_attr_simple

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <283dd9ba-99ab-43d9-904a-efca1358cf06@linux.ibm.com>
Date: Thu, 2 Jan 2025 11:11:10 +0530
From: Aditya Gupta <adityag@...ux.ibm.com>
To: Thomas Weißschuh <linux@...ssschuh.net>
Cc: Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin
 <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Naveen N Rao <naveen@...nel.org>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Luis Chamberlain
 <mcgrof@...nel.org>,
        Petr Pavlu <petr.pavlu@...e.com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Daniel Gomez
 <da.gomez@...sung.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Eduard Zingerman
 <eddyz87@...il.com>, Song Liu <song@...nel.org>,
        Yonghong Song <yonghong.song@...ux.dev>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-modules@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH v2 1/3] sysfs: constify bin_attribute argument of
 sysfs_bin_attr_simple_read()

Hi,

Please use this Tested-by instead of the previous one i sent:

Tested-by: Aditya Gupta <adityag@...ux.ibm.com>


Thanks,

- Aditya G

On 02/01/25 11:07, Aditya Gupta wrote:
> Looks good to me. Did boot test and reading the /sys files works.
>
> Linux-ci tests [0] are also good (the failing tests are broken from
> some time, ignoring them):
>
> [0]: https://github.com/adi-g15-ibm/linux-ci/actions?query=branch%3Atmp-test-branch-10962+branch%3Atmp-test-branch-26310+branch%3Atmp-test-branch-23431++
>
> Tested-by: Aditya Gupta <adityagupta@....com>
>
> Thanks,
> - Aditya G
>
> On 24/12/28 09:43AM, Thomas Weißschuh wrote:
>> Most users use this function through the BIN_ATTR_SIMPLE* macros,
>> they can handle the switch transparently.
>> Also adapt the two non-macro users in the same change.
>>
>> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
>> ---
>>   arch/powerpc/platforms/powernv/opal.c | 2 +-
>>   fs/sysfs/file.c                       | 2 +-
>>   include/linux/sysfs.h                 | 4 ++--
>>   kernel/module/sysfs.c                 | 2 +-
>>   4 files changed, 5 insertions(+), 5 deletions(-)
>>
>> diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
>> index 5d0f35bb917ebced8c741cd3af2c511949a1d2ef..013637e2b2a8e6a4ec6b93a520f8d5d9d3245467 100644
>> --- a/arch/powerpc/platforms/powernv/opal.c
>> +++ b/arch/powerpc/platforms/powernv/opal.c
>> @@ -818,7 +818,7 @@ static int opal_add_one_export(struct kobject *parent, const char *export_name,
>>   	sysfs_bin_attr_init(attr);
>>   	attr->attr.name = name;
>>   	attr->attr.mode = 0400;
>> -	attr->read = sysfs_bin_attr_simple_read;
>> +	attr->read_new = sysfs_bin_attr_simple_read;
>>   	attr->private = __va(vals[0]);
>>   	attr->size = vals[1];
>>   
>> diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
>> index 785408861c01c89fc84c787848243a13c1338367..6931308876c4ac3b4c19878d5e1158ad8fe4f16f 100644
>> --- a/fs/sysfs/file.c
>> +++ b/fs/sysfs/file.c
>> @@ -817,7 +817,7 @@ EXPORT_SYMBOL_GPL(sysfs_emit_at);
>>    * Returns number of bytes written to @buf.
>>    */
>>   ssize_t sysfs_bin_attr_simple_read(struct file *file, struct kobject *kobj,
>> -				   struct bin_attribute *attr, char *buf,
>> +				   const struct bin_attribute *attr, char *buf,
>>   				   loff_t off, size_t count)
>>   {
>>   	memcpy(buf, attr->private + off, count);
>> diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
>> index 0f2fcd244523f050c5286f19d4fe1846506f9214..2205561159afdb57d0a250bb0439b28c01d9010e 100644
>> --- a/include/linux/sysfs.h
>> +++ b/include/linux/sysfs.h
>> @@ -511,7 +511,7 @@ __printf(3, 4)
>>   int sysfs_emit_at(char *buf, int at, const char *fmt, ...);
>>   
>>   ssize_t sysfs_bin_attr_simple_read(struct file *file, struct kobject *kobj,
>> -				   struct bin_attribute *attr, char *buf,
>> +				   const struct bin_attribute *attr, char *buf,
>>   				   loff_t off, size_t count);
>>   
>>   #else /* CONFIG_SYSFS */
>> @@ -774,7 +774,7 @@ static inline int sysfs_emit_at(char *buf, int at, const char *fmt, ...)
>>   
>>   static inline ssize_t sysfs_bin_attr_simple_read(struct file *file,
>>   						 struct kobject *kobj,
>> -						 struct bin_attribute *attr,
>> +						 const struct bin_attribute *attr,
>>   						 char *buf, loff_t off,
>>   						 size_t count)
>>   {
>> diff --git a/kernel/module/sysfs.c b/kernel/module/sysfs.c
>> index 456358e1fdc43e6b5b24f383bbefa37812971174..254017b58b645d4afcf6876d29bcc2e2113a8dc4 100644
>> --- a/kernel/module/sysfs.c
>> +++ b/kernel/module/sysfs.c
>> @@ -196,7 +196,7 @@ static int add_notes_attrs(struct module *mod, const struct load_info *info)
>>   			nattr->attr.mode = 0444;
>>   			nattr->size = info->sechdrs[i].sh_size;
>>   			nattr->private = (void *)info->sechdrs[i].sh_addr;
>> -			nattr->read = sysfs_bin_attr_simple_read;
>> +			nattr->read_new = sysfs_bin_attr_simple_read;
>>   			++nattr;
>>   		}
>>   		++loaded;
>>
>> -- 
>> 2.47.1
>>