From: Peter Zijlstra <peterz@infradead.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
jpoimboe@redhat.com, mark.rutland@arm.com, dvyukov@google.com,
seanjc@google.com, pbonzini@redhat.com, mbenes@suse.cz
Subject: [PATCH v2 17/23] x86,checksum_32: Remove .fixup usage
Date: Wed, 10 Nov 2021 11:01:19 +0100 [thread overview]
Message-ID: <20211110101325.899657959@infradead.org> (raw)
In-Reply-To: 20211110100102.250793167@infradead.org
Simply add EX_FLAG_CLEAR_AX to do as the .fixup used to do.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
arch/x86/lib/checksum_32.S | 19 +++----------------
1 file changed, 3 insertions(+), 16 deletions(-)
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -260,9 +260,9 @@ unsigned int csum_partial_copy_generic (
* Copy from ds while checksumming, otherwise like csum_partial
*/
-#define EXC(y...) \
- 9999: y; \
- _ASM_EXTABLE_UA(9999b, 6001f)
+#define EXC(y...) \
+ 9999: y; \
+ _ASM_EXTABLE_TYPE(9999b, 7f, EX_TYPE_UACCESS | EX_FLAG_CLEAR_AX)
#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
@@ -358,15 +358,6 @@ EXC( movb %cl, (%edi) )
adcl $0, %eax
7:
-# Exception handler:
-.section .fixup, "ax"
-
-6001:
- xorl %eax, %eax
- jmp 7b
-
-.previous
-
popl %ebx
popl %esi
popl %edi
@@ -439,10 +430,6 @@ EXC( movb %dl, (%edi) )
6: addl %edx, %eax
adcl $0, %eax
7:
-.section .fixup, "ax"
-6001: xorl %eax, %eax
- jmp 7b
-.previous
popl %esi
popl %edi
next prev parent reply other threads:[~2021-11-10 10:16 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-10 10:01 [PATCH v2 00/23] x86: Remove anonymous out-of-line fixups Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 01/23] bitfield.h: Fix "type of reg too small for mask" test Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 02/23] x86,mmx_32: Remove .fixup usage Peter Zijlstra
2021-11-15 16:54 ` [PATCH v2.1 02/23] x86/mmx_32: Remove X86_USE_3DNOW Peter Zijlstra
2021-11-16 18:25 ` Borislav Petkov
2021-12-13 9:50 ` [tip: x86/core] " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 03/23] x86,copy_user_64: Remove .fixup usage Peter Zijlstra
2021-11-16 19:04 ` Borislav Petkov
2021-12-13 9:50 ` [tip: x86/core] x86/copy_user_64: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 04/23] x86,copy_mc_64: " Peter Zijlstra
2021-11-17 16:28 ` Borislav Petkov
2021-12-13 9:50 ` [tip: x86/core] x86/copy_mc_64: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 05/23] x86,entry_64: " Peter Zijlstra
2021-11-17 16:29 ` Borislav Petkov
2021-11-19 8:00 ` Lai Jiangshan
2021-12-13 9:50 ` [tip: x86/core] x86/entry_64: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 06/23] x86,entry_32: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/entry_32: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 07/23] x86,extable: Extend extable functionality Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/extable: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 08/23] x86,msr: Remove .fixup usage Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/msr: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 09/23] x86,futex: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/futex: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 10/23] x86,uaccess: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/uaccess: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 11/23] x86,xen: " Peter Zijlstra
2021-11-10 10:35 ` Juergen Gross
2021-11-10 11:00 ` Peter Zijlstra
2021-11-10 12:46 ` Peter Zijlstra
2021-11-10 12:52 ` Juergen Gross
2021-11-10 16:17 ` Peter Zijlstra
2021-11-11 7:20 ` Juergen Gross
2021-11-10 12:45 ` [PATCH v2.1 " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/xen: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 12/23] x86,fpu: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/fpu: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 13/23] x86,segment: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/segment: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 14/23] x86,kvm: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/kvm: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 15/23] x86,vmx: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/vmx: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 16/23] x86,vmx: Provide asm-goto-output vmread Peter Zijlstra
2021-12-13 10:07 ` Peter Zijlstra
2021-12-14 18:44 ` Sean Christopherson
2021-12-14 22:46 ` Peter Zijlstra
2021-12-14 23:07 ` Sean Christopherson
2021-11-10 10:01 ` Peter Zijlstra [this message]
2021-12-13 9:50 ` [tip: x86/core] x86/checksum_32: Remove .fixup usage tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 18/23] x86,sgx: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/sgx: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 19/23] x86,usercopy_32: Simplify __copy_user_intel_nocache() Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/usercopy_32: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 20/23] x86,usercopy: Remove .fixup usage Peter Zijlstra
2021-11-11 7:51 ` Josh Poimboeuf
2021-11-11 8:28 ` Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/usercopy: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 21/23] x86,word-at-a-time: " Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] x86/word-at-a-time: " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 22/23] x86: Remove .fixup section Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] " tip-bot2 for Peter Zijlstra
2021-11-10 10:01 ` [PATCH v2 23/23] objtool: Remove .fixup handling Peter Zijlstra
2021-12-13 9:50 ` [tip: x86/core] " tip-bot2 for Peter Zijlstra
2021-11-11 7:55 ` [PATCH v2 00/23] x86: Remove anonymous out-of-line fixups Josh Poimboeuf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211110101325.899657959@infradead.org \
--to=peterz@infradead.org \
--cc=dvyukov@google.com \
--cc=jpoimboe@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mbenes@suse.cz \
--cc=pbonzini@redhat.com \
--cc=seanjc@google.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).