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From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Jessica Yu <jeyu@kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Michal Marek <michal.lkml@markovi.net>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 01/29] modpost: drop RCS/CVS $Revision handling in MODULE_VERSION()
Date: Sun, 17 May 2020 18:48:31 +0900	[thread overview]
Message-ID: <20200517094859.2376211-2-masahiroy@kernel.org> (raw)
In-Reply-To: <20200517094859.2376211-1-masahiroy@kernel.org>

As far as I understood, this code gets rid of '$Revision$' or '$Revision:'
of CVS, RCS or whatever in MODULE_VERSION() tags.

Remove the primeval code.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 scripts/mod/modpost.c    |  3 --
 scripts/mod/modpost.h    |  4 ---
 scripts/mod/sumversion.c | 66 ----------------------------------------
 3 files changed, 73 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 4d4b979d76be..77e5425759e2 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2074,9 +2074,6 @@ static void read_symbols(const char *modname)
 		check_sec_ref(mod, modname, &info);
 
 	version = get_modinfo(&info, "version");
-	if (version)
-		maybe_frob_rcs_version(modname, version, info.modinfo,
-				       version - (char *)info.hdr);
 	if (version || (all_versions && !is_vmlinux(modname)))
 		get_src_version(modname, mod->srcversion,
 				sizeof(mod->srcversion)-1);
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 39f6c29fb568..bbaf5cc37bfb 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -187,10 +187,6 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 void add_moddevtable(struct buffer *buf, struct module *mod);
 
 /* sumversion.c */
-void maybe_frob_rcs_version(const char *modfilename,
-			    char *version,
-			    void *modinfo,
-			    unsigned long modinfo_offset);
 void get_src_version(const char *modname, char sum[], unsigned sumlen);
 
 /* from modpost.c */
diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index 63062024ce0e..f27f22420cbc 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -429,69 +429,3 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen)
 release:
 	release_file(file, len);
 }
-
-static void write_version(const char *filename, const char *sum,
-			  unsigned long offset)
-{
-	int fd;
-
-	fd = open(filename, O_RDWR);
-	if (fd < 0) {
-		warn("changing sum in %s failed: %s\n",
-			filename, strerror(errno));
-		return;
-	}
-
-	if (lseek(fd, offset, SEEK_SET) == (off_t)-1) {
-		warn("changing sum in %s:%lu failed: %s\n",
-			filename, offset, strerror(errno));
-		goto out;
-	}
-
-	if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
-		warn("writing sum in %s failed: %s\n",
-			filename, strerror(errno));
-		goto out;
-	}
-out:
-	close(fd);
-}
-
-static int strip_rcs_crap(char *version)
-{
-	unsigned int len, full_len;
-
-	if (strncmp(version, "$Revision", strlen("$Revision")) != 0)
-		return 0;
-
-	/* Space for version string follows. */
-	full_len = strlen(version) + strlen(version + strlen(version) + 1) + 2;
-
-	/* Move string to start with version number: prefix will be
-	 * $Revision$ or $Revision: */
-	len = strlen("$Revision");
-	if (version[len] == ':' || version[len] == '$')
-		len++;
-	while (isspace(version[len]))
-		len++;
-	memmove(version, version+len, full_len-len);
-	full_len -= len;
-
-	/* Preserve up to next whitespace. */
-	len = 0;
-	while (version[len] && !isspace(version[len]))
-		len++;
-	memmove(version + len, version + strlen(version),
-		full_len - strlen(version));
-	return 1;
-}
-
-/* Clean up RCS-style version numbers. */
-void maybe_frob_rcs_version(const char *modfilename,
-			    char *version,
-			    void *modinfo,
-			    unsigned long version_offset)
-{
-	if (strip_rcs_crap(version))
-		write_version(modfilename, version, version_offset);
-}
-- 
2.25.1


  reply	other threads:[~2020-05-17  9:50 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-17  9:48 [PATCH 00/29] modpost: various fixes, cleanups, optimizations Masahiro Yamada
2020-05-17  9:48 ` Masahiro Yamada [this message]
2020-05-17  9:48 ` [PATCH 02/29] modpost: do not call get_modinfo() for vmlinux Masahiro Yamada
2020-05-17  9:48 ` [PATCH 03/29] modpost: add read_text_file() and get_line() helpers Masahiro Yamada
2020-05-19 10:21   ` Peter Zijlstra
2020-05-20 12:17     ` Masahiro Yamada
2020-05-20 12:29       ` Peter Zijlstra
2020-05-23  4:18         ` Masahiro Yamada
2020-05-17  9:48 ` [PATCH 04/29] modpost: fix potential mmap'ed file overrun in get_src_version() Masahiro Yamada
2020-05-17  9:48 ` [PATCH 05/29] modpost: re-add warning about missing *.mod file Masahiro Yamada
2020-05-17  9:48 ` [PATCH 06/29] modpost: avoid false-positive file open error Masahiro Yamada
2020-05-17  9:48 ` [PATCH 07/29] modpost: use read_text_file() and get_line() for reading text files Masahiro Yamada
2020-05-17  9:48 ` [PATCH 08/29] modpost: remove get_next_text() and make {grab,release_}file static Masahiro Yamada
2020-05-17  9:48 ` [PATCH 09/29] kbuild: disallow multi-word in M= or KBUILD_EXTMOD Masahiro Yamada
2020-05-17 12:33   ` David Laight
2020-05-21  3:57     ` Masahiro Yamada
2020-05-17  9:48 ` [PATCH 10/29] modpost: move -T option close to the modpost command Masahiro Yamada
2020-05-17  9:48 ` [PATCH 11/29] modpost: pass -N option only for modules modpost Masahiro Yamada
2020-05-17  9:48 ` [PATCH 12/29] modpost: move external module options Masahiro Yamada
2020-05-17  9:48 ` [PATCH 13/29] modpost: load KBUILD_EXTRA_SYMBOLS files in order Masahiro Yamada
2020-05-17  9:48 ` [PATCH 14/29] modpost: track if the symbol origin is a dump file or ELF object Masahiro Yamada
2020-05-17  9:48 ` [PATCH 15/29] modpost: allow to pass -i option multiple times remove -e option Masahiro Yamada
2020-05-17  9:48 ` [PATCH 16/29] modpost: rename ext_sym_list to dump_list Masahiro Yamada
2020-05-17  9:48 ` [PATCH 17/29] modpost: re-add -e to set external_module flag Masahiro Yamada
2020-05-17  9:48 ` [PATCH 18/29] modpost: show warning if vmlinux is not found when processing modules Masahiro Yamada
2020-05-17  9:48 ` [PATCH 19/29] modpost: show warning if it fails to read symbol dump file Masahiro Yamada
2020-05-17  9:48 ` [PATCH 20/29] modpost: generate vmlinux.symvers and reuse it for the second modpost Masahiro Yamada
2020-05-17  9:48 ` [PATCH 21/29] modpost: remove -s option Masahiro Yamada
2020-05-17  9:48 ` [PATCH 22/29] modpost: remove mod->is_dot_o struct member Masahiro Yamada
2020-05-17  9:48 ` [PATCH 23/29] modpost: remove is_vmlinux() call in check_for_{gpl_usage,unused}() Masahiro Yamada
2020-05-17  9:48 ` [PATCH 24/29] modpost: add mod->is_vmlinux struct member Masahiro Yamada
2020-05-17  9:48 ` [PATCH 25/29] modpost: remove mod->skip " Masahiro Yamada
2020-05-17  9:48 ` [PATCH 26/29] modpost: set have_vmlinux in new_module() Masahiro Yamada
2020-05-17  9:48 ` [PATCH 27/29] modpost: strip .o from modname before calling new_module() Masahiro Yamada
2020-05-17  9:48 ` [PATCH 28/29] modpost: remove is_vmlinux() helper Masahiro Yamada
2020-05-17  9:48 ` [PATCH 29/29] modpost: change elf_info->size to size_t Masahiro Yamada

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