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authorBorislav Petkov <bp@suse.de>2020-11-02 20:47:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-07-25 12:26:10 +0300
commita3d96c74395e162e880515d711ab96f5959856ec (patch)
treeb987053fbd5807cc37800673f5c563a84abd46b2 /arch
parentfd80da64cffe952cfd71c1c60085ad2bad7ecb63 (diff)
downloadlinux-a3d96c74395e162e880515d711ab96f5959856ec.tar.xz
x86/insn: Rename insn_decode() to insn_decode_from_regs()
commit 9e761296c52dcdb1aaa151b65bd39accb05740d9 upstream. Rename insn_decode() to insn_decode_from_regs() to denote that it receives regs as param and uses registers from there during decoding. Free the former name for a more generic version of the function. No functional changes. Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210304174237.31945-2-bp@alien8.de Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/insn-eval.h4
-rw-r--r--arch/x86/kernel/sev-es.c2
-rw-r--r--arch/x86/kernel/umip.c2
-rw-r--r--arch/x86/lib/insn-eval.c6
4 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/include/asm/insn-eval.h b/arch/x86/include/asm/insn-eval.h
index c1438f9239e4..594ad2f57d23 100644
--- a/arch/x86/include/asm/insn-eval.h
+++ b/arch/x86/include/asm/insn-eval.h
@@ -26,7 +26,7 @@ int insn_fetch_from_user(struct pt_regs *regs,
unsigned char buf[MAX_INSN_SIZE]);
int insn_fetch_from_user_inatomic(struct pt_regs *regs,
unsigned char buf[MAX_INSN_SIZE]);
-bool insn_decode(struct insn *insn, struct pt_regs *regs,
- unsigned char buf[MAX_INSN_SIZE], int buf_size);
+bool insn_decode_from_regs(struct insn *insn, struct pt_regs *regs,
+ unsigned char buf[MAX_INSN_SIZE], int buf_size);
#endif /* _ASM_X86_INSN_EVAL_H */
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
index c222fab112cb..f441002c2327 100644
--- a/arch/x86/kernel/sev-es.c
+++ b/arch/x86/kernel/sev-es.c
@@ -236,7 +236,7 @@ static enum es_result vc_decode_insn(struct es_em_ctxt *ctxt)
return ES_EXCEPTION;
}
- if (!insn_decode(&ctxt->insn, ctxt->regs, buffer, res))
+ if (!insn_decode_from_regs(&ctxt->insn, ctxt->regs, buffer, res))
return ES_DECODE_FAILED;
} else {
res = vc_fetch_insn_kernel(ctxt, buffer);
diff --git a/arch/x86/kernel/umip.c b/arch/x86/kernel/umip.c
index f6225bf22c02..8032f5f7eef9 100644
--- a/arch/x86/kernel/umip.c
+++ b/arch/x86/kernel/umip.c
@@ -356,7 +356,7 @@ bool fixup_umip_exception(struct pt_regs *regs)
if (!nr_copied)
return false;
- if (!insn_decode(&insn, regs, buf, nr_copied))
+ if (!insn_decode_from_regs(&insn, regs, buf, nr_copied))
return false;
umip_inst = identify_insn(&insn);
diff --git a/arch/x86/lib/insn-eval.c b/arch/x86/lib/insn-eval.c
index c6a19c88af54..3a7e307d42aa 100644
--- a/arch/x86/lib/insn-eval.c
+++ b/arch/x86/lib/insn-eval.c
@@ -1492,7 +1492,7 @@ int insn_fetch_from_user_inatomic(struct pt_regs *regs, unsigned char buf[MAX_IN
}
/**
- * insn_decode() - Decode an instruction
+ * insn_decode_from_regs() - Decode an instruction
* @insn: Structure to store decoded instruction
* @regs: Structure with register values as seen when entering kernel mode
* @buf: Buffer containing the instruction bytes
@@ -1505,8 +1505,8 @@ int insn_fetch_from_user_inatomic(struct pt_regs *regs, unsigned char buf[MAX_IN
*
* True if instruction was decoded, False otherwise.
*/
-bool insn_decode(struct insn *insn, struct pt_regs *regs,
- unsigned char buf[MAX_INSN_SIZE], int buf_size)
+bool insn_decode_from_regs(struct insn *insn, struct pt_regs *regs,
+ unsigned char buf[MAX_INSN_SIZE], int buf_size)
{
int seg_defs;