Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Matt Helsley <mhelsley@vmware.com>
To:     <linux-kernel@vger.kernel.org>
CC:     Josh Poimboeuf <jpoimboe@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Julien Thierry <jthierry@redhat.com>,
        Ingo Molnar <mingo@redhat.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Miroslav Benes <mbenes@suse.cz>,
        Matt Helsley <mhelsley@vmware.com>
Subject: [RFC][PATCH 11/36] objtool: mcount: Remove unused fname parameter
Date:   Fri, 10 Apr 2020 12:35:34 -0700
Message-ID: <540320f6d29a9eb3cb9ec0bbeb8deed1f0995b1f.1586468801.git.mhelsley@vmware.com>
In-Reply-To: <cover.1586468801.git.mhelsley@vmware.com>
References: <cover.1586468801.git.mhelsley@vmware.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 7BIT
Content-Type:   text/plain; charset=US-ASCII
Received-SPF: None (EX13-EDG-OU-001.vmware.com: mhelsley@vmware.com does not
 designate permitted sender hosts)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The name of the object file being processed is unused in
leaf functions and only passed down to reach them so we
can remove it.

Signed-off-by: Matt Helsley <mhelsley@vmware.com>
---
 tools/objtool/recordmcount.c |  4 ++--
 tools/objtool/recordmcount.h | 19 ++++++++-----------
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/tools/objtool/recordmcount.c b/tools/objtool/recordmcount.c
index 46a275a393a8..df16783434ae 100644
--- a/tools/objtool/recordmcount.c
+++ b/tools/objtool/recordmcount.c
@@ -586,7 +586,7 @@ static int do_file(char const *const fname)
 			reltype = R_MIPS_32;
 			is_fake_mcount32 = MIPS32_is_fake_mcount;
 		}
-		if (do32(ehdr, fname, reltype) < 0)
+		if (do32(ehdr, reltype) < 0)
 			goto out;
 		break;
 	case ELFCLASS64: {
@@ -607,7 +607,7 @@ static int do_file(char const *const fname)
 			Elf64_r_info = MIPS64_r_info;
 			is_fake_mcount64 = MIPS64_is_fake_mcount;
 		}
-		if (do64(ghdr, fname, reltype) < 0)
+		if (do64(ghdr, reltype) < 0)
 			goto out;
 		break;
 	}
diff --git a/tools/objtool/recordmcount.h b/tools/objtool/recordmcount.h
index 3c4807dca3d0..3250a461895d 100644
--- a/tools/objtool/recordmcount.h
+++ b/tools/objtool/recordmcount.h
@@ -466,8 +466,7 @@ static int find_secsym_ndx(unsigned const txtndx,
 /* Evade ISO C restriction: no declaration after statement in has_rel_mcount. */
 static char const * __has_rel_mcount(GElf_Shdr const *const relhdr, /* reltype */
 				     Elf_Shdr const *const shdr0,
-				     char const *const shstrtab,
-				     char const *const fname)
+				     char const *const shstrtab)
 {
 	/* .sh_info depends on .sh_type == SHT_REL[,A] */
 	Elf_Shdr const *const txthdr = &shdr0[relhdr->sh_info];
@@ -481,25 +480,23 @@ static char const * __has_rel_mcount(GElf_Shdr const *const relhdr, /* reltype *
 
 static char const *has_rel_mcount(GElf_Shdr const *const relhdr,
 				  Elf_Shdr const *const shdr0,
-				  char const *const shstrtab,
-				  char const *const fname)
+				  char const *const shstrtab)
 {
 	if (relhdr->sh_type != SHT_REL && relhdr->sh_type != SHT_RELA)
 		return NULL;
-	return __has_rel_mcount(relhdr, shdr0, shstrtab, fname);
+	return __has_rel_mcount(relhdr, shdr0, shstrtab);
 }
 
 
 static unsigned tot_relsize(Elf_Shdr const *const shdr0,
-			    const char *const shstrtab,
-			    const char *const fname)
+			    const char *const shstrtab)
 {
 	struct section *sec;
 	unsigned totrelsz = 0;
 	char const *txtname;
 
 	list_for_each_entry(sec, &lf->sections, list) {
-		txtname = has_rel_mcount(&sec->sh, shdr0, shstrtab, fname);
+		txtname = has_rel_mcount(&sec->sh, shdr0, shstrtab);
 		if (txtname && is_mcounted_section_name(txtname))
 			totrelsz += sec->sh.sh_size;
 	}
@@ -508,7 +505,7 @@ static unsigned tot_relsize(Elf_Shdr const *const shdr0,
 
 
 /* Overall supervision for Elf32 ET_REL file. */
-static int do_func(Elf_Ehdr *const ehdr, char const *const fname,
+static int do_func(Elf_Ehdr *const ehdr,
 		   unsigned const reltype)
 {
 	Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff)
@@ -538,7 +535,7 @@ static int do_func(Elf_Ehdr *const ehdr, char const *const fname,
 	if (find_section_by_name(lf, "__mcount_loc") != NULL)
 		return 0;
 
-	totrelsz = tot_relsize(shdr0, shstrtab, fname);
+	totrelsz = tot_relsize(shdr0, shstrtab);
 	if (totrelsz == 0)
 		return 0;
 	mrel0 = umalloc(totrelsz);
@@ -559,7 +556,7 @@ static int do_func(Elf_Ehdr *const ehdr, char const *const fname,
 
 		relhdr = &sec->sh;
 		txtname = has_rel_mcount(relhdr, shdr0,
-			shstrtab, fname);
+			shstrtab);
 		if (txtname && is_mcounted_section_name(txtname)) {
 			unsigned int recsym;
 			uint_t recval = 0;
-- 
2.20.1