* [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel
@ 2018-03-29 19:05 ` Thiago Jung Bauermann
0 siblings, 0 replies; 8+ messages in thread
From: Thiago Jung Bauermann @ 2018-03-29 19:05 UTC (permalink / raw)
To: linuxppc-dev
Cc: Michael Ellerman, Dave Young, Michal Suchánek, kexec,
linux-kernel, Thiago Jung Bauermann
kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
returns -ENOTSUPP in that case.
I've recently learned that this errno is internal to the kernel and isn't
supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
is defined in an uapi header.
This does indeed make kexec-tools happier. Before the patch, on ppc64le:
# ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
kexec_file_load failed: Unknown error 524
After the patch:
# ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
kexec_file_load failed: Operation not supported
Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
Reported-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
---
arch/powerpc/kernel/machine_kexec_file_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
This is a minor issue, but since it's a simple patch it might be worth
applying it to stable branches.
This is the kexec-tools thread where this problem was brought up:
https://lists.infradead.org/pipermail/kexec/2018-March/020346.html
And this is an instance of a similar fix being applied elsewhere in the
kernel, for the same reasons:
https://patchwork.kernel.org/patch/8490791/
The test shown in the commit log was made using Hari Bathini's patch
adding kexec_file_load() support to kexec-tools in ppc64.
diff --git a/arch/powerpc/kernel/machine_kexec_file_64.c b/arch/powerpc/kernel/machine_kexec_file_64.c
index e4395f937d63..45e0b7d5f200 100644
--- a/arch/powerpc/kernel/machine_kexec_file_64.c
+++ b/arch/powerpc/kernel/machine_kexec_file_64.c
@@ -43,7 +43,7 @@ int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
/* We don't support crash kernels yet. */
if (image->type == KEXEC_TYPE_CRASH)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
for (i = 0; i < ARRAY_SIZE(kexec_file_loaders); i++) {
fops = kexec_file_loaders[i];
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel
@ 2018-03-29 19:05 ` Thiago Jung Bauermann
0 siblings, 0 replies; 8+ messages in thread
From: Thiago Jung Bauermann @ 2018-03-29 19:05 UTC (permalink / raw)
To: linuxppc-dev
Cc: Michael Ellerman, kexec, linux-kernel, Thiago Jung Bauermann,
Michal Suchánek, Dave Young
kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
returns -ENOTSUPP in that case.
I've recently learned that this errno is internal to the kernel and isn't
supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
is defined in an uapi header.
This does indeed make kexec-tools happier. Before the patch, on ppc64le:
# ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
kexec_file_load failed: Unknown error 524
After the patch:
# ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
kexec_file_load failed: Operation not supported
Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
Reported-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
---
arch/powerpc/kernel/machine_kexec_file_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
This is a minor issue, but since it's a simple patch it might be worth
applying it to stable branches.
This is the kexec-tools thread where this problem was brought up:
https://lists.infradead.org/pipermail/kexec/2018-March/020346.html
And this is an instance of a similar fix being applied elsewhere in the
kernel, for the same reasons:
https://patchwork.kernel.org/patch/8490791/
The test shown in the commit log was made using Hari Bathini's patch
adding kexec_file_load() support to kexec-tools in ppc64.
diff --git a/arch/powerpc/kernel/machine_kexec_file_64.c b/arch/powerpc/kernel/machine_kexec_file_64.c
index e4395f937d63..45e0b7d5f200 100644
--- a/arch/powerpc/kernel/machine_kexec_file_64.c
+++ b/arch/powerpc/kernel/machine_kexec_file_64.c
@@ -43,7 +43,7 @@ int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
/* We don't support crash kernels yet. */
if (image->type == KEXEC_TYPE_CRASH)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
for (i = 0; i < ARRAY_SIZE(kexec_file_loaders); i++) {
fops = kexec_file_loaders[i];
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel
2018-03-29 19:05 ` Thiago Jung Bauermann
@ 2018-03-30 6:27 ` Simon Horman
-1 siblings, 0 replies; 8+ messages in thread
From: Simon Horman @ 2018-03-30 6:27 UTC (permalink / raw)
To: Thiago Jung Bauermann
Cc: linuxppc-dev, Michael Ellerman, kexec, linux-kernel,
Michal Suchánek, Dave Young
On Thu, Mar 29, 2018 at 04:05:43PM -0300, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@redhat.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel
@ 2018-03-30 6:27 ` Simon Horman
0 siblings, 0 replies; 8+ messages in thread
From: Simon Horman @ 2018-03-30 6:27 UTC (permalink / raw)
To: Thiago Jung Bauermann
Cc: Michael Ellerman, kexec, linuxppc-dev, linux-kernel,
Michal Suchánek, Dave Young
On Thu, Mar 29, 2018 at 04:05:43PM -0300, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@redhat.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel
2018-03-29 19:05 ` Thiago Jung Bauermann
@ 2018-03-30 8:02 ` Dave Young
-1 siblings, 0 replies; 8+ messages in thread
From: Dave Young @ 2018-03-30 8:02 UTC (permalink / raw)
To: Thiago Jung Bauermann
Cc: linuxppc-dev, Michael Ellerman, kexec, linux-kernel,
Michal Suchánek
On 03/29/18 at 04:05pm, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@redhat.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/machine_kexec_file_64.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> This is a minor issue, but since it's a simple patch it might be worth
> applying it to stable branches.
>
> This is the kexec-tools thread where this problem was brought up:
>
> https://lists.infradead.org/pipermail/kexec/2018-March/020346.html
>
> And this is an instance of a similar fix being applied elsewhere in the
> kernel, for the same reasons:
>
> https://patchwork.kernel.org/patch/8490791/
>
> The test shown in the commit log was made using Hari Bathini's patch
> adding kexec_file_load() support to kexec-tools in ppc64.
>
> diff --git a/arch/powerpc/kernel/machine_kexec_file_64.c b/arch/powerpc/kernel/machine_kexec_file_64.c
> index e4395f937d63..45e0b7d5f200 100644
> --- a/arch/powerpc/kernel/machine_kexec_file_64.c
> +++ b/arch/powerpc/kernel/machine_kexec_file_64.c
> @@ -43,7 +43,7 @@ int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
>
> /* We don't support crash kernels yet. */
> if (image->type == KEXEC_TYPE_CRASH)
> - return -ENOTSUPP;
> + return -EOPNOTSUPP;
>
> for (i = 0; i < ARRAY_SIZE(kexec_file_loaders); i++) {
> fops = kexec_file_loaders[i];
>
>
> _______________________________________________
> kexec mailing list
> kexec@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec
Reviewed-by: Dave Young <dyoung@redhat.com>
Thanks
Dave
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel
@ 2018-03-30 8:02 ` Dave Young
0 siblings, 0 replies; 8+ messages in thread
From: Dave Young @ 2018-03-30 8:02 UTC (permalink / raw)
To: Thiago Jung Bauermann
Cc: Michael Ellerman, Michal Suchánek, linuxppc-dev, kexec,
linux-kernel
On 03/29/18 at 04:05pm, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@redhat.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/machine_kexec_file_64.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> This is a minor issue, but since it's a simple patch it might be worth
> applying it to stable branches.
>
> This is the kexec-tools thread where this problem was brought up:
>
> https://lists.infradead.org/pipermail/kexec/2018-March/020346.html
>
> And this is an instance of a similar fix being applied elsewhere in the
> kernel, for the same reasons:
>
> https://patchwork.kernel.org/patch/8490791/
>
> The test shown in the commit log was made using Hari Bathini's patch
> adding kexec_file_load() support to kexec-tools in ppc64.
>
> diff --git a/arch/powerpc/kernel/machine_kexec_file_64.c b/arch/powerpc/kernel/machine_kexec_file_64.c
> index e4395f937d63..45e0b7d5f200 100644
> --- a/arch/powerpc/kernel/machine_kexec_file_64.c
> +++ b/arch/powerpc/kernel/machine_kexec_file_64.c
> @@ -43,7 +43,7 @@ int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
>
> /* We don't support crash kernels yet. */
> if (image->type == KEXEC_TYPE_CRASH)
> - return -ENOTSUPP;
> + return -EOPNOTSUPP;
>
> for (i = 0; i < ARRAY_SIZE(kexec_file_loaders); i++) {
> fops = kexec_file_loaders[i];
>
>
> _______________________________________________
> kexec mailing list
> kexec@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec
Reviewed-by: Dave Young <dyoung@redhat.com>
Thanks
Dave
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: powerpc: kexec_file: Fix error code when trying to load kdump kernel
2018-03-29 19:05 ` Thiago Jung Bauermann
@ 2018-03-31 14:04 ` Michael Ellerman
-1 siblings, 0 replies; 8+ messages in thread
From: Michael Ellerman @ 2018-03-31 14:04 UTC (permalink / raw)
To: Thiago Jung Bauermann, linuxppc-dev
Cc: kexec, linux-kernel, Thiago Jung Bauermann, Michal Suchánek,
Dave Young
On Thu, 2018-03-29 at 19:05:43 UTC, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@redhat.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
> Reviewed-by: Simon Horman <horms@verge.net.au>
> Reviewed-by: Dave Young <dyoung@redhat.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/bf8a1abc3ddbd6e9a8312ea7d96e5d
cheers
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: powerpc: kexec_file: Fix error code when trying to load kdump kernel
@ 2018-03-31 14:04 ` Michael Ellerman
0 siblings, 0 replies; 8+ messages in thread
From: Michael Ellerman @ 2018-03-31 14:04 UTC (permalink / raw)
To: Thiago Jung Bauermann, linuxppc-dev
Cc: Thiago Jung Bauermann, Dave Young, Michal Suchánek, kexec,
linux-kernel
On Thu, 2018-03-29 at 19:05:43 UTC, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@redhat.com>
> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
> Reviewed-by: Simon Horman <horms@verge.net.au>
> Reviewed-by: Dave Young <dyoung@redhat.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/bf8a1abc3ddbd6e9a8312ea7d96e5d
cheers
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2018-03-31 14:04 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-29 19:05 [PATCH] powerpc: kexec_file: Fix error code when trying to load kdump kernel Thiago Jung Bauermann
2018-03-29 19:05 ` Thiago Jung Bauermann
2018-03-30 6:27 ` Simon Horman
2018-03-30 6:27 ` Simon Horman
2018-03-30 8:02 ` Dave Young
2018-03-30 8:02 ` Dave Young
2018-03-31 14:04 ` Michael Ellerman
2018-03-31 14:04 ` Michael Ellerman
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