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From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	Pingfan Liu <piliu@redhat.com>,
	Kexec-ml <kexec@lists.infradead.org>,
	Mimi Zohar <zohar@linux.ibm.com>,
	Nayna Jain <nayna@linux.ibm.com>, Petr Tesarik <ptesarik@suse.cz>,
	Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
	Sourabh Jain <sourabhjain@linux.ibm.com>,
	lkml <linux-kernel@vger.kernel.org>,
	linuxppc-dev <linuxppc-dev@ozlabs.org>,
	Eric Biederman <ebiederm@xmission.com>,
	Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [PATCH v3 05/12] powerpc/drmem: make lmb walk a bit more flexible
Date: Wed, 15 Jul 2020 00:50:35 -0300	[thread overview]
Message-ID: <871rld8mic.fsf@morokweng.localdomain> (raw)
In-Reply-To: <159466090332.24747.9255471295044653085.stgit@hbathini.in.ibm.com>


Hari Bathini <hbathini@linux.ibm.com> writes:

> @@ -534,7 +537,7 @@ static int __init early_init_dt_scan_memory_ppc(unsigned long node,
>  #ifdef CONFIG_PPC_PSERIES
>  	if (depth == 1 &&
>  	    strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0) {
> -		walk_drmem_lmbs_early(node, early_init_drmem_lmb);
> +		walk_drmem_lmbs_early(node, NULL, early_init_drmem_lmb);

walk_drmem_lmbs_early() can now fail. Should this failure be propagated
as a return value of early_init_dt_scan_memory_ppc()?

>  		return 0;
>  	}
>  #endif
<snip>

> @@ -787,7 +790,7 @@ static int __init parse_numa_properties(void)
>  	 */
>  	memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
>  	if (memory) {
> -		walk_drmem_lmbs(memory, numa_setup_drmem_lmb);
> +		walk_drmem_lmbs(memory, NULL, numa_setup_drmem_lmb);

Similarly here. Now that this call can fail, should
parse_numa_properties() handle or propagate the failure?

>  		of_node_put(memory);
>  	}
>


--
Thiago Jung Bauermann
IBM Linux Technology Center

  reply	other threads:[~2020-07-15  3:50 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-13 17:20 [PATCH v3 00/12] ppc64: enable kdump support for kexec_file_load syscall Hari Bathini
2020-07-13 17:20 ` [PATCH v3 01/12] kexec_file: allow archs to handle special regions while locating memory hole Hari Bathini
2020-07-14 21:00   ` Thiago Jung Bauermann
2020-07-13 17:21 ` [PATCH v3 02/12] powerpc/kexec_file: mark PPC64 specific code Hari Bathini
2020-07-16  1:49   ` Thiago Jung Bauermann
2020-07-17  4:46     ` Hari Bathini
2020-07-17 18:34       ` Thiago Jung Bauermann
2020-07-13 17:21 ` [PATCH v3 03/12] powerpc/kexec_file: add helper functions for getting memory ranges Hari Bathini
2020-07-14 23:49   ` Thiago Jung Bauermann
2020-07-16 21:08     ` Hari Bathini
2020-07-17  4:32     ` Hari Bathini
2020-07-17 20:00       ` Hari Bathini
2020-07-13 17:21 ` [PATCH v3 04/12] ppc64/kexec_file: avoid stomping memory used by special regions Hari Bathini
2020-07-15  2:39   ` Thiago Jung Bauermann
2020-07-16  5:58     ` Thiago Jung Bauermann
2020-07-16 21:09     ` Hari Bathini
2020-07-16 21:59       ` Thiago Jung Bauermann
2020-07-13 17:21 ` [PATCH v3 05/12] powerpc/drmem: make lmb walk a bit more flexible Hari Bathini
2020-07-15  3:50   ` Thiago Jung Bauermann [this message]
2020-07-16 21:09     ` Hari Bathini
2020-07-16 22:01       ` Thiago Jung Bauermann
2020-07-13 17:22 ` [PATCH v3 06/12] ppc64/kexec_file: restrict memory usage of kdump kernel Hari Bathini
2020-07-15 22:52   ` Thiago Jung Bauermann
2020-07-16 21:10     ` Hari Bathini
2020-07-16 22:03       ` Thiago Jung Bauermann
2020-07-17  4:17         ` Hari Bathini
2020-07-13 17:22 ` [PATCH v3 07/12] ppc64/kexec_file: add support to relocate purgatory Hari Bathini
2020-07-16  0:20   ` Thiago Jung Bauermann
2020-07-16 21:11     ` Hari Bathini
2020-07-16 22:12       ` Thiago Jung Bauermann
2020-07-13 17:22 ` [PATCH v3 08/12] ppc64/kexec_file: setup the stack for purgatory Hari Bathini
2020-07-16  0:35   ` Thiago Jung Bauermann
2020-07-16  1:40   ` Thiago Jung Bauermann
2020-07-13 17:22 ` [PATCH v3 09/12] ppc64/kexec_file: setup backup region for kdump kernel Hari Bathini
2020-07-16  1:38   ` Thiago Jung Bauermann
2020-07-16 21:10     ` Hari Bathini
2020-07-16 22:06       ` Thiago Jung Bauermann
2020-07-13 17:23 ` [PATCH v3 10/12] ppc64/kexec_file: prepare elfcore header for crashing kernel Hari Bathini
2020-07-16  2:22   ` Thiago Jung Bauermann
2020-07-16 21:07     ` Hari Bathini
2020-07-16 21:57       ` Thiago Jung Bauermann
2020-07-13 17:23 ` [PATCH v3 11/12] ppc64/kexec_file: add appropriate regions for memory reserve map Hari Bathini
2020-07-16  2:27   ` Thiago Jung Bauermann
2020-07-13 17:23 ` [PATCH v3 12/12] ppc64/kexec_file: fix kexec load failure with lack of memory hole Hari Bathini
2020-07-16  5:43   ` Thiago Jung Bauermann

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