From: ChenXiaoSong <chenxiaosong.chenxiaosong@linux.dev>
To: David Howells <dhowells@redhat.com>, Steve French <smfrench@gmail.com>
Cc: linkinjeon@kernel.org, pc@manguebit.org,
ronniesahlberg@gmail.com, sprasad@microsoft.com, tom@talpey.com,
bharathsm@microsoft.com, senozhatsky@chromium.org,
linux-cifs@vger.kernel.org
Subject: Re: [PATCH v6 2/5] cifs: Autogenerate SMB2 error mapping table
Date: Tue, 30 Dec 2025 17:42:57 +0800 [thread overview]
Message-ID: <00150dea-4a30-49e3-a1c2-cd6e6561e238@linux.dev> (raw)
In-Reply-To: <1692b7a8-c208-4aa7-a9f4-02fea6d31733@linux.dev>
David, what do you think of the modifications? Call le32_to_cpu() to get
a cpu-endian value before comparison.
Thanks,
ChenXiaoSong <chenxiaosong@kylinos.cn>
On 12/28/25 00:05, ChenXiaoSong wrote:
> Or, David, what do you think of the following modifications?
>
> ```
> err_map = __inline_bsearch((const void *)(unsigned long)smb2_status, ...);
>
> static __always_inline int cmp_smb2_status(const void *_key, const void
> *_map)
> {
> __u32 key = le32_to_cpu((unsigned long)_key);
> const struct status_to_posix_error *map = _map;
> __u32 pivot = le32_to_cpu(map->smb2_status);
>
> if (key < pivot)
> return -1;
> if (key > pivot)
> return 1;
> return 0;
> }
> ```
next prev parent reply other threads:[~2025-12-30 9:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-25 2:10 [PATCH v6 0/5] smb: improve search speed of SMB2 maperror chenxiaosong.chenxiaosong
2025-12-25 2:10 ` [PATCH v6 1/5] cifs: Label SMB2 statuses with errors chenxiaosong.chenxiaosong
2025-12-25 2:10 ` [PATCH v6 2/5] cifs: Autogenerate SMB2 error mapping table chenxiaosong.chenxiaosong
2025-12-27 10:53 ` ChenXiaoSong
2025-12-27 12:00 ` David Howells
2025-12-27 15:03 ` ChenXiaoSong
2025-12-27 15:50 ` David Howells
2025-12-27 16:05 ` ChenXiaoSong
2025-12-30 9:42 ` ChenXiaoSong [this message]
2025-12-30 21:08 ` David Howells
2025-12-30 21:14 ` David Howells
2025-12-30 3:55 ` ChenXiaoSong
2025-12-30 9:07 ` David Howells
2025-12-25 2:10 ` [PATCH v6 3/5] smb/client: check whether smb2_error_map_table is sorted in ascending order chenxiaosong.chenxiaosong
2025-12-25 2:10 ` [PATCH v6 4/5] smb/client: use bsearch() to find target in smb2_error_map_table chenxiaosong.chenxiaosong
2025-12-26 11:58 ` David Howells
2025-12-26 12:06 ` David Howells
2025-12-26 15:28 ` ChenXiaoSong
2025-12-27 2:18 ` ChenXiaoSong
2025-12-27 8:56 ` David Howells
2025-12-27 9:29 ` ChenXiaoSong
2025-12-27 11:59 ` David Howells
2025-12-27 8:53 ` David Howells
2025-12-25 2:10 ` [PATCH v6 5/5] smb/client: introduce KUnit test to check search result of smb2_error_map_table chenxiaosong.chenxiaosong
2025-12-28 15:07 ` kernel test robot
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