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From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/8] ARM: head: use PC-relative insn sequence for __smp_alt
Date: Wed,  3 Aug 2016 17:38:47 +0200	[thread overview]
Message-ID: <1470238730-30038-6-git-send-email-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <1470238730-30038-1-git-send-email-ard.biesheuvel@linaro.org>

Replace the open coded PC relative offset calculations with adr_l
invocations.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 arch/arm/kernel/head.S | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 7a14622582de..a9d8f9004dfd 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -522,19 +522,11 @@ ARM_BE8(rev	r0, r0)			@ byteswap if big endian
 	retne	lr
 
 __fixup_smp_on_up:
-	adr	r0, 1f
-	ldmia	r0, {r3 - r5}
-	sub	r3, r0, r3
-	add	r4, r4, r3
-	add	r5, r5, r3
+	adr_l	r4, __smpalt_begin
+	adr_l	r5, __smpalt_end
 	b	__do_fixup_smp_on_up
 ENDPROC(__fixup_smp)
 
-	.align
-1:	.word	.
-	.word	__smpalt_begin
-	.word	__smpalt_end
-
 	.pushsection .data
 	.globl	smp_on_up
 smp_on_up:
-- 
2.7.4

  parent reply	other threads:[~2016-08-03 15:38 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-03 15:38 [PATCH 0/8] ARM: clean up PC-relative arithmetic Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 1/8] ARM: assembler: introduce adr_l, ldr_l and str_l macros Ard Biesheuvel
2016-08-03 16:49   ` Dave Martin
2016-08-04  7:40     ` Ard Biesheuvel
2016-08-04  9:44       ` Dave Martin
2016-08-04 10:34         ` Ard Biesheuvel
2016-08-04 11:22           ` Dave Martin
2016-08-04 12:16             ` Russell King - ARM Linux
2016-08-04 12:55               ` Dave Martin
2016-08-04 13:58               ` Ard Biesheuvel
2016-08-04  7:43     ` Ard Biesheuvel
2016-08-03 18:09   ` Russell King - ARM Linux
2016-08-04  7:40     ` Ard Biesheuvel
2016-08-04  9:38       ` Dave Martin
2016-08-04 10:12         ` Ard Biesheuvel
2016-08-04 11:08           ` Dave Martin
2016-08-04 11:10             ` Ard Biesheuvel
2016-08-04 11:30               ` Dave Martin
2016-08-04 11:34                 ` Ard Biesheuvel
2016-08-04 13:31                   ` Dave Martin
2016-08-04 13:46                     ` Ard Biesheuvel
2016-08-04 15:38                       ` Dave Martin
2016-08-03 15:38 ` [PATCH 2/8] ARM: head-common.S: use PC-relative insn sequence for __proc_info Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 3/8] ARM: head-common.S: use PC-relative insn sequence for __turn_mmu_on Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 4/8] ARM: head.S: use PC-relative insn sequence for secondary_data Ard Biesheuvel
2016-08-03 18:06   ` Russell King - ARM Linux
2016-08-03 15:38 ` Ard Biesheuvel [this message]
2016-08-03 15:38 ` [PATCH 6/8] ARM: sleep.S: use PC-relative insn sequence for sleep_save_sp/mpidr_hash Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 7/8] ARM: head.S: use PC-relative insn sequences for __fixup_pv_table Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 8/8] ARM: head.S: use PC relative insn sequence to calculate PHYS_OFFSET Ard Biesheuvel
2016-08-03 18:17 ` [PATCH 0/8] ARM: clean up PC-relative arithmetic Russell King - ARM Linux
2016-08-04  7:17   ` Ard Biesheuvel
2016-08-04  9:49     ` Russell King - ARM Linux
2016-08-04  9:54       ` Ard Biesheuvel
2016-08-04 10:03         ` Russell King - ARM Linux
2016-08-04 10:11           ` Ard Biesheuvel
2016-08-04 10:14             ` Russell King - ARM Linux
2016-08-03 18:27 ` Nicolas Pitre
2016-08-04 14:11   ` Ard Biesheuvel

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