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From: Kees Cook <keescook@chromium.org>
To: linux-hardening@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
	Paramjit Oberoi <pso@chromium.org>,
	Anton Vorontsov <anton@enomsg.org>,
	Colin Cross <ccross@android.com>, Tony Luck <tony.luck@intel.com>,
	"Guilherme G. Piccoli" <gpiccoli@igalia.com>,
	Ard Biesheuvel <ardb@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/5] pstore/ram: Move pmsg init earlier
Date: Tue, 11 Oct 2022 13:01:09 -0700	[thread overview]
Message-ID: <20221011200112.731334-3-keescook@chromium.org> (raw)
In-Reply-To: <20221011200112.731334-1-keescook@chromium.org>

Since the ftrace area can vary in size based on CPU count, move pmsg
initialization earlier so it will have a stable location.

Suggested-by: Paramjit Oberoi <pso@chromium.org>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
---
 fs/pstore/ram.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 348820a3ce88..2f18563c8141 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -785,6 +785,11 @@ static int ramoops_probe(struct platform_device *pdev)
 	if (err)
 		goto fail_init;
 
+	err = ramoops_init_prz("pmsg", dev, cxt, &cxt->mprz, &paddr,
+				cxt->pmsg_size, 0);
+	if (err)
+		goto fail_init;
+
 	cxt->max_ftrace_cnt = (cxt->flags & RAMOOPS_FLAG_FTRACE_PER_CPU)
 				? nr_cpu_ids
 				: 1;
@@ -796,11 +801,6 @@ static int ramoops_probe(struct platform_device *pdev)
 	if (err)
 		goto fail_init;
 
-	err = ramoops_init_prz("pmsg", dev, cxt, &cxt->mprz, &paddr,
-				cxt->pmsg_size, 0);
-	if (err)
-		goto fail_init;
-
 	cxt->pstore.data = cxt;
 	/*
 	 * Prepare frontend flags based on which areas are initialized.
-- 
2.34.1


  parent reply	other threads:[~2022-10-11 20:01 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-11 20:01 [PATCH 0/5] Move internal definitions out of kernel-wide include Kees Cook
2022-10-11 20:01 ` [PATCH 1/5] pstore/ram: Consolidate kfree() paths Kees Cook
2022-10-12 19:43   ` Guilherme G. Piccoli
2022-10-11 20:01 ` Kees Cook [this message]
2022-10-12 19:45   ` [PATCH 2/5] pstore/ram: Move pmsg init earlier Guilherme G. Piccoli
2022-10-11 20:01 ` [PATCH 3/5] pstore/ram: Move internal definitions out of kernel-wide include Kees Cook
2022-10-12 19:46   ` Guilherme G. Piccoli
2022-10-12 21:51     ` Kees Cook
2022-10-11 20:01 ` [PATCH 4/5] pstore/ram: Set freed addresses to NULL Kees Cook
2022-10-12 19:44   ` Guilherme G. Piccoli
2022-10-11 20:01 ` [PATCH 5/5] MAINTAINERS: Update pstore maintainers Kees Cook
2022-10-11 20:26   ` Colin Cross
2022-10-11 20:35   ` Guilherme G. Piccoli
2022-10-11 22:20     ` Kees Cook
2022-10-12 15:15       ` Guilherme G. Piccoli
2022-11-16 15:42   ` Guilherme G. Piccoli
2022-11-17 22:01     ` Kees Cook
2022-11-17 22:05       ` Guilherme G. Piccoli

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