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Date: Tue, 11 Oct 2022 13:01:09 -0700 From: Kees Cook <keescook@...omium.org> To: linux-hardening@...r.kernel.org Cc: Kees Cook <keescook@...omium.org>, Paramjit Oberoi <pso@...omium.org>, Anton Vorontsov <anton@...msg.org>, Colin Cross <ccross@...roid.com>, Tony Luck <tony.luck@...el.com>, "Guilherme G. Piccoli" <gpiccoli@...lia.com>, Ard Biesheuvel <ardb@...nel.org>, linux-kernel@...r.kernel.org Subject: [PATCH 2/5] pstore/ram: Move pmsg init earlier 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@...omium.org> Cc: Anton Vorontsov <anton@...msg.org> Cc: Colin Cross <ccross@...roid.com> Cc: Tony Luck <tony.luck@...el.com> Signed-off-by: Kees Cook <keescook@...omium.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
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