From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Rob Herring <robh+dt@kernel.org>,
Russell King <linux@armlinux.org.uk>,
Nicolas Pitre <nico@fluxnic.net>,
Ard Biesheuvel <ardb@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Nick Kossifidis <mick@ics.forth.gr>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Frank Rowand <frowand.list@gmail.com>,
Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>, Vivek Goyal <vgoyal@redhat.com>,
Mike Rapoport <rppt@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org,
kexec@lists.infradead.org, linux-renesas-soc@vger.kernel.org,
linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH v5 2/9] crash_dump: Make elfcorehdr address/size symbols always visible
Date: Wed, 11 Aug 2021 10:51:00 +0200 [thread overview]
Message-ID: <ba965ca613c0cc82c1ec2fe353ee34fb13b36474.1628670468.git.geert+renesas@glider.be> (raw)
In-Reply-To: <cover.1628670468.git.geert+renesas@glider.be>
Make the forward declarations of elfcorehdr_addr and elfcorehdr_size,
and the definitions of ELFCORE_ADDR_MAX and ELFCORE_ADDR_ERR always
available, like is done for phys_initrd_start and phys_initrd_size.
Code referring to these symbols can then just check for
IS_ENABLED(CONFIG_CRASH_DUMP), instead of requiring conditional
compilation using an #ifdef, thus preparing to increase compile
coverage.
Suggested-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v5:
- Make ELFCORE_ADDR_{MAX,ERR} visible, too,
v4:
- New.
---
include/linux/crash_dump.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index a5192b718dbe4f9a..2618577a4d6da77e 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -10,13 +10,14 @@
#include <linux/pgtable.h> /* for pgprot_t */
-#ifdef CONFIG_CRASH_DUMP
+/* For IS_ENABLED(CONFIG_CRASH_DUMP) */
#define ELFCORE_ADDR_MAX (-1ULL)
#define ELFCORE_ADDR_ERR (-2ULL)
extern unsigned long long elfcorehdr_addr;
extern unsigned long long elfcorehdr_size;
+#ifdef CONFIG_CRASH_DUMP
extern int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size);
extern void elfcorehdr_free(unsigned long long addr);
extern ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos);
--
2.25.1
next prev parent reply other threads:[~2021-08-11 8:51 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-11 8:50 [PATCH v5 0/9] Add generic support for kdump DT properties Geert Uytterhoeven
2021-08-11 8:50 ` [PATCH v5 1/9] MIPS: Avoid future duplicate elf core header reservation Geert Uytterhoeven
2021-08-11 15:35 ` Geert Uytterhoeven
2021-08-16 5:52 ` Mike Rapoport
2021-08-23 10:17 ` Geert Uytterhoeven
2021-08-23 13:09 ` Mike Rapoport
2021-08-23 14:44 ` Rob Herring
2021-08-23 15:20 ` Mike Rapoport
2021-08-11 8:51 ` Geert Uytterhoeven [this message]
2021-08-11 8:51 ` [PATCH v5 3/9] of: fdt: Add generic support for handling elf core headers property Geert Uytterhoeven
2021-08-11 8:51 ` [PATCH v5 4/9] of: fdt: Add generic support for handling usable memory range property Geert Uytterhoeven
2021-08-11 8:51 ` [PATCH v5 5/9] of: fdt: Use IS_ENABLED(CONFIG_BLK_DEV_INITRD) instead of #ifdef Geert Uytterhoeven
2021-08-11 8:51 ` [PATCH v5 6/9] riscv: Remove non-standard linux,elfcorehdr handling Geert Uytterhoeven
2021-08-11 8:51 ` [PATCH v5 7/9] arm64: kdump: Remove custom " Geert Uytterhoeven
2021-08-23 12:55 ` Catalin Marinas
2021-08-11 8:51 ` [PATCH v5 8/9] arm64: kdump: Remove custom linux,usable-memory-range handling Geert Uytterhoeven
2021-08-23 12:55 ` Catalin Marinas
2021-08-11 8:51 ` [PATCH v5 9/9] ARM: uncompress: Parse "linux,usable-memory-range" DT property Geert Uytterhoeven
2021-08-15 15:25 ` [PATCH v5 0/9] Add generic support for kdump DT properties Rob Herring
2021-08-23 10:13 ` Geert Uytterhoeven
2021-08-23 14:52 ` Rob Herring
2021-08-24 11:55 ` Geert Uytterhoeven
2021-08-24 22:43 ` Rob Herring
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