From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: Jessica Yu <jeyu@kernel.org>
Cc: Matthias Maennich <maennich@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Shaun Ruffell <sruffell@sruffell.net>,
linux-kbuild@vger.kernel.org,
Masahiro Yamada <yamada.masahiro@socionext.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 6/6] nsdeps: make generated patches independent of locale
Date: Thu, 3 Oct 2019 16:58:26 +0900 [thread overview]
Message-ID: <20191003075826.7478-7-yamada.masahiro@socionext.com> (raw)
In-Reply-To: <20191003075826.7478-1-yamada.masahiro@socionext.com>
scripts/nsdeps automatically generates a patch to add MODULE_IMPORT_NS
tags, and what is nicer, it sorts the lines alphabetically with the
'sort' command. However, the output from the 'sort' command depends on
locale.
For example, I got this:
$ { echo usbstorage; echo usb_storage; } | LANG=en_US.UTF-8 sort
usbstorage
usb_storage
$ { echo usbstorage; echo usb_storage; } | LANG=C sort
usb_storage
usbstorage
So, this means people might potentially send different patches.
This kind of issue was reported in the past, for example,
commit f55f2328bb28 ("kbuild: make sorting initramfs contents
independent of locale").
Adding 'LANG=C' is a conventional way of fixing when a deterministic
result is desirable.
I added 'LANG=C' very close to the 'sort' command since changing
locale affects the language of error messages etc. We should respect
users' choice as much as possible.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Maennich <maennich@google.com>
---
Changes in v2:
- Add more commit log about the locale impact
scripts/nsdeps | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/nsdeps b/scripts/nsdeps
index 964b7fb8c546..3754dac13b31 100644
--- a/scripts/nsdeps
+++ b/scripts/nsdeps
@@ -41,7 +41,7 @@ generate_deps() {
for source_file in $mod_source_files; do
sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp
offset=$(wc -l ${source_file}.tmp | awk '{print $1;}')
- cat $source_file | grep MODULE_IMPORT_NS | sort -u >> ${source_file}.tmp
+ cat $source_file | grep MODULE_IMPORT_NS | LANG=C sort -u >> ${source_file}.tmp
tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp
if ! diff -q ${source_file} ${source_file}.tmp; then
mv ${source_file}.tmp ${source_file}
--
2.17.1
next prev parent reply other threads:[~2019-10-03 7:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 7:58 [PATCH v2 0/6] module: various bug-fixes and clean-ups for module namespace Masahiro Yamada
2019-10-03 7:58 ` [PATCH v2 1/6] module: swap the order of symbol.namespace Masahiro Yamada
2019-10-03 7:58 ` [PATCH v2 2/6] modpost: fix broken sym->namespace for external module builds Masahiro Yamada
2019-10-03 6:29 ` Shaun Ruffell
2019-10-03 14:42 ` Masahiro Yamada
2019-10-04 15:10 ` Jessica Yu
2019-10-03 7:58 ` [PATCH v2 3/6] module: rename __kstrtab_ns_* to __kstrtabns_* to avoid symbol conflict Masahiro Yamada
2019-10-03 7:58 ` [PATCH v2 4/6] kbuild: fix build error of 'make nsdeps' in clean tree Masahiro Yamada
2019-10-03 7:58 ` [PATCH v2 5/6] nsdeps: fix hashbang of scripts/nsdeps Masahiro Yamada
2019-10-03 7:58 ` Masahiro Yamada [this message]
2019-10-07 16:43 ` [PATCH v2 0/6] module: various bug-fixes and clean-ups for module namespace Jessica Yu
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