linux-kernel - [PATCH v4 7/7] kexec_file, parisc: print out debugging message if required

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Message-ID: <20231213055747.61826-8-bhe@redhat.com>
Date:   Wed, 13 Dec 2023 13:57:47 +0800
From:   Baoquan He <bhe@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     kexec@...ts.infradead.org, x86@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-riscv@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
        linux-parisc@...r.kernel.org, akpm@...ux-foundation.org,
        joe@...ches.com, nathan@...nel.org, conor@...nel.org,
        Baoquan He <bhe@...hat.com>
Subject: [PATCH v4 7/7] kexec_file, parisc: print out debugging message if required

Then when specifying '-d' for kexec_file_load interface, loaded
locations of kernel/initrd/cmdline etc can be printed out to help
debug.

Here replace pr_debug() with the newly added kexec_dprintk() in
kexec_file loading related codes.

Signed-off-by: Baoquan He <bhe@...hat.com>
---
 arch/parisc/kernel/kexec_file.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/kexec_file.c b/arch/parisc/kernel/kexec_file.c
index 8c534204f0fd..3fc82130b6c3 100644
--- a/arch/parisc/kernel/kexec_file.c
+++ b/arch/parisc/kernel/kexec_file.c
@@ -38,8 +38,8 @@ static void *elf_load(struct kimage *image, char *kernel_buf,
 	for (i = 0; i < image->nr_segments; i++)
 		image->segment[i].mem = __pa(image->segment[i].mem);
 
-	pr_debug("Loaded the kernel at 0x%lx, entry at 0x%lx\n",
-		 kernel_load_addr, image->start);
+	kexec_dprintk("Loaded the kernel at 0x%lx, entry at 0x%lx\n",
+		      kernel_load_addr, image->start);
 
 	if (initrd != NULL) {
 		kbuf.buffer = initrd;
@@ -51,7 +51,7 @@ static void *elf_load(struct kimage *image, char *kernel_buf,
 		if (ret)
 			goto out;
 
-		pr_debug("Loaded initrd at 0x%lx\n", kbuf.mem);
+		kexec_dprintk("Loaded initrd at 0x%lx\n", kbuf.mem);
 		image->arch.initrd_start = kbuf.mem;
 		image->arch.initrd_end = kbuf.mem + initrd_len;
 	}
@@ -68,7 +68,7 @@ static void *elf_load(struct kimage *image, char *kernel_buf,
 		if (ret)
 			goto out;
 
-		pr_debug("Loaded cmdline at 0x%lx\n", kbuf.mem);
+		kexec_dprintk("Loaded cmdline at 0x%lx\n", kbuf.mem);
 		image->arch.cmdline = kbuf.mem;
 	}
 out:
-- 
2.41.0