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From: Nick Desaulniers <ndesaulniers@google.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
	 Nathan Chancellor <nathan@kernel.org>,
	Nicolas Schier <nicolas@fjasle.eu>,
	 Peter Zijlstra <peterz@infradead.org>,
	linux-modules@vger.kernel.org,  linux-s390@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,  Ard Biesheuvel <ardb@kernel.org>,
	Sami Tolvanen <samitolvanen@google.com>,
	 clang-built-linux <llvm@lists.linux.dev>
Subject: Re: [PATCH v4 03/14] modpost: split the section mismatch checks into section-check.c
Date: Mon, 9 May 2022 10:19:47 -0700	[thread overview]
Message-ID: <CAKwvOd=LR=UNOeWJDmM-McJ=FrCWTo8w1ox+KGMQCwCVpiUyFg@mail.gmail.com> (raw)
In-Reply-To: <20220508190631.2386038-4-masahiroy@kernel.org>

On Sun, May 8, 2022 at 12:10 PM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
> modpost.c is too big, and the half of the code is for section checks.
> Split it.
>
> I fixed some style issues in the moved code.

It would be helpful for review if the split and restyle were distinct
patches.  Otherwise I can't tell what has changed.

This does lose the ability to use git blame to get more context on
some of the oddities in modpost (which I have found useful in the
past).  I don't feel strongly though.

>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> ---
>
> Changes in v4:
>   - New patch
>
>  scripts/mod/Makefile        |    2 +-
>  scripts/mod/modpost.c       | 1202 +---------------------------------
>  scripts/mod/modpost.h       |   34 +-
>  scripts/mod/section-check.c | 1222 +++++++++++++++++++++++++++++++++++
>  4 files changed, 1240 insertions(+), 1220 deletions(-)
>  create mode 100644 scripts/mod/section-check.c
>
> diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
> index c9e38ad937fd..ca739c6c68a1 100644
> --- a/scripts/mod/Makefile
> +++ b/scripts/mod/Makefile
> @@ -5,7 +5,7 @@ CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO)
>  hostprogs-always-y     += modpost mk_elfconfig
>  always-y               += empty.o
>
> -modpost-objs   := modpost.o file2alias.o sumversion.o
> +modpost-objs   := modpost.o section-check.o file2alias.o sumversion.o
>
>  devicetable-offsets-file := devicetable-offsets.h
>
> diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
> index a78b75f0eeb0..e7e2c70a98f5 100644
> --- a/scripts/mod/modpost.c
> +++ b/scripts/mod/modpost.c
> @@ -31,7 +31,7 @@ static bool external_module;
>  /* Only warn about unresolved symbols */
>  static bool warn_unresolved;
>
> -static int sec_mismatch_count;
> +int sec_mismatch_count;

^ this should go in modpost.h if it is to be used in two translation
units, rather than forward declaring it in section-check.c.  You did
this for the functions.
-- 
Thanks,
~Nick Desaulniers

WARNING: multiple messages have this Message-ID
From: Nick Desaulniers <ndesaulniers@google.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-s390@vger.kernel.org, Nicolas Schier <nicolas@fjasle.eu>,
	linux-kbuild@vger.kernel.org,
	Peter Zijlstra <peterz@infradead.org>,
	clang-built-linux <llvm@lists.linux.dev>,
	linux-kernel@vger.kernel.org,
	Nathan Chancellor <nathan@kernel.org>,
	Sami Tolvanen <samitolvanen@google.com>,
	linuxppc-dev@lists.ozlabs.org, Ard Biesheuvel <ardb@kernel.org>,
	linux-modules@vger.kernel.org
Subject: Re: [PATCH v4 03/14] modpost: split the section mismatch checks into section-check.c
Date: Mon, 9 May 2022 10:19:47 -0700	[thread overview]
Message-ID: <CAKwvOd=LR=UNOeWJDmM-McJ=FrCWTo8w1ox+KGMQCwCVpiUyFg@mail.gmail.com> (raw)
In-Reply-To: <20220508190631.2386038-4-masahiroy@kernel.org>

On Sun, May 8, 2022 at 12:10 PM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
> modpost.c is too big, and the half of the code is for section checks.
> Split it.
>
> I fixed some style issues in the moved code.

It would be helpful for review if the split and restyle were distinct
patches.  Otherwise I can't tell what has changed.

This does lose the ability to use git blame to get more context on
some of the oddities in modpost (which I have found useful in the
past).  I don't feel strongly though.

>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> ---
>
> Changes in v4:
>   - New patch
>
>  scripts/mod/Makefile        |    2 +-
>  scripts/mod/modpost.c       | 1202 +---------------------------------
>  scripts/mod/modpost.h       |   34 +-
>  scripts/mod/section-check.c | 1222 +++++++++++++++++++++++++++++++++++
>  4 files changed, 1240 insertions(+), 1220 deletions(-)
>  create mode 100644 scripts/mod/section-check.c
>
> diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
> index c9e38ad937fd..ca739c6c68a1 100644
> --- a/scripts/mod/Makefile
> +++ b/scripts/mod/Makefile
> @@ -5,7 +5,7 @@ CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO)
>  hostprogs-always-y     += modpost mk_elfconfig
>  always-y               += empty.o
>
> -modpost-objs   := modpost.o file2alias.o sumversion.o
> +modpost-objs   := modpost.o section-check.o file2alias.o sumversion.o
>
>  devicetable-offsets-file := devicetable-offsets.h
>
> diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
> index a78b75f0eeb0..e7e2c70a98f5 100644
> --- a/scripts/mod/modpost.c
> +++ b/scripts/mod/modpost.c
> @@ -31,7 +31,7 @@ static bool external_module;
>  /* Only warn about unresolved symbols */
>  static bool warn_unresolved;
>
> -static int sec_mismatch_count;
> +int sec_mismatch_count;

^ this should go in modpost.h if it is to be used in two translation
units, rather than forward declaring it in section-check.c.  You did
this for the functions.
-- 
Thanks,
~Nick Desaulniers

  reply	other threads:[~2022-05-09 17:20 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-08 19:06 [PATCH v4 00/14] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h) Masahiro Yamada
2022-05-08 19:06 ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 01/14] modpost: remove left-over cross_compile declaration Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09 17:08   ` Nick Desaulniers
2022-05-09 17:08     ` Nick Desaulniers
2022-05-12  4:35   ` Masahiro Yamada
2022-05-12  4:35     ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 02/14] modpost: change the license of EXPORT_SYMBOL to bool type Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-12  4:36   ` Masahiro Yamada
2022-05-12  4:36     ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 03/14] modpost: split the section mismatch checks into section-check.c Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09 17:19   ` Nick Desaulniers [this message]
2022-05-09 17:19     ` Nick Desaulniers
2022-05-10  6:55     ` Masahiro Yamada
2022-05-10  6:55       ` Masahiro Yamada
2022-05-11 18:47       ` Nick Desaulniers
2022-05-11 18:47         ` Nick Desaulniers
2022-05-11 19:27         ` Masahiro Yamada
2022-05-11 19:27           ` Masahiro Yamada
2022-05-11 19:51           ` Jeff Johnson
2022-05-11 19:51             ` Jeff Johnson
2022-05-11 20:01             ` Nick Desaulniers
2022-05-11 20:01               ` Nick Desaulniers
2022-05-08 19:06 ` [PATCH v4 04/14] modpost: add sym_find_with_module() helper Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 05/14] modpost: extract symbol versions from *.cmd files Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09 21:52   ` Sami Tolvanen
2022-05-09 21:52     ` Sami Tolvanen
2022-05-08 19:06 ` [PATCH v4 06/14] kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09 17:50   ` Nick Desaulniers
2022-05-09 17:50     ` Nick Desaulniers
2022-05-10 13:03     ` Masahiro Yamada
2022-05-10 13:03       ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 07/14] kbuild: stop merging *.symversions Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 08/14] genksyms: adjust the output format to modpost Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 09/14] kbuild: do not create *.prelink.o for Clang LTO or IBT Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09 23:13   ` Sami Tolvanen
2022-05-09 23:13     ` Sami Tolvanen
2022-05-08 19:06 ` [PATCH v4 10/14] kbuild: check static EXPORT_SYMBOL* by script instead of modpost Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09 18:05   ` Nick Desaulniers
2022-05-09 18:05     ` Nick Desaulniers
2022-05-10 13:53     ` Masahiro Yamada
2022-05-10 13:53       ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 11/14] kbuild: make built-in.a rule robust against too long argument error Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 12/14] kbuild: make *.mod " Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 13/14] kbuild: add cmd_and_savecmd macro Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-08 19:06 ` [PATCH v4 14/14] kbuild: rebuild multi-object modules when objtool is updated Masahiro Yamada
2022-05-08 19:06   ` Masahiro Yamada
2022-05-09  4:24 ` [PATCH v4 00/14] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h) Masahiro Yamada
2022-05-09  4:24   ` Masahiro Yamada
2022-05-09 22:13   ` Nathan Chancellor
2022-05-09 22:13     ` Nathan Chancellor
2022-05-10  6:55     ` Masahiro Yamada
2022-05-10  6:55       ` Masahiro Yamada
2022-05-09 22:19   ` Nathan Chancellor
2022-05-09 22:19     ` Nathan Chancellor

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