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From: "Yu, Fenghua" <fenghua.yu@intel.com>
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Helge Deller <deller@gmx.de>, "Luck, Tony" <tony.luck@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Sergey Senozhatsky" <sergey.senozhatsky@gmail.com>,
	Petr Mladek <pmladek@suse.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	"Michael Ellerman" <mpe@ellerman.id.au>
Subject: RE: [PATCH 00/14] Fix wrong %pF and %pS printk format specifier usages
Date: Fri, 8 Sep 2017 22:23:54 +0000	[thread overview]
Message-ID: <3E5A0FA7E9CA944F9D5414FEC6C7122075892DD0@ORSMSX106.amr.corp.intel.com> (raw)
In-Reply-To: <20170908061830.GA496@jagdpanzerIV.localdomain>

> From: Sergey Senozhatsky [mailto:sergey.senozhatsky.work@gmail.com]
> On (09/07/17 16:05), Luck, Tony wrote:
> +static inline bool __mod_text_address(struct module *mod,
> +                                     unsigned long addr) {
> +       /* Make sure it's within the text section. */
> +       if (!within(addr, mod->init_layout.base, mod->init_layout.text_size)
> +           && !within(addr, mod->core_layout.base, mod-
> >core_layout.text_size))
> +               return false;
> +       return true;
> +}

The __mod_text_address() may be defined only  on IA64, PPC64 and PARISC since it's only called in those cases.

> +
>  #ifdef CONFIG_KALLSYMS
>  /*
>   * This ignores the intensely annoying "mapping symbols" found @@ -3942,6
> +3952,14 @@ const char *module_address_lookup(unsigned long addr,
>         preempt_disable();
>         mod = __module_address(addr);
>         if (mod) {
> +#if defined(CONFIG_IA64) || defined(CONFIG_PPC64) ||
> defined(CONFIG_PARISC)
> +               unsigned long deref_addr;
> +
> +               if (!__mod_text_address(mod, addr))
> +                       deref_addr = dereference_function_descriptor(addr);
> +               if (__mod_text_address(mod, deref_addr))
> +                       addr = deref_addr; #endif

Thanks.

-Fenghua

  parent reply	other threads:[~2017-09-08 22:23 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-06 20:27 [PATCH 00/14] Fix wrong %pF and %pS printk format specifier usages Helge Deller
2017-09-06 20:27 ` [PATCH 01/14] arm: Use %pS printk format for symbols from direct addresses Helge Deller
2017-09-06 20:27 ` [PATCH 02/14] um: " Helge Deller
2017-09-12 12:10   ` Petr Mladek
2017-09-21 20:13     ` Richard Weinberger
2017-09-06 20:27 ` [PATCH 03/14] x86: " Helge Deller
2017-09-06 20:27 ` [PATCH 04/14] ti_sci: Use %pS printk format for " Helge Deller
2017-09-08 23:30   ` Nishanth Menon
2017-09-09  0:30     ` Santosh Shilimkar
2017-09-06 20:27 ` [PATCH 05/14] i915: " Helge Deller
2017-09-27 12:24   ` [Intel-gfx] " Daniel Vetter
2017-09-06 20:27 ` [PATCH 06/14] md/bcache: " Helge Deller
2017-09-07  4:50   ` Coly Li
2017-09-07  7:42     ` Helge Deller
2017-09-07  7:49       ` Coly Li
2017-09-07  8:05       ` Sergey Senozhatsky
2017-09-06 20:27 ` [PATCH 07/14] power/avs: " Helge Deller
2017-09-08 23:37   ` Nishanth Menon
2017-09-06 20:27 ` [PATCH 08/14] fs/f2fs: " Helge Deller
2017-09-06 20:27 ` [PATCH 09/14] fs/pstore: " Helge Deller
2018-11-29 23:26   ` Kees Cook
2018-11-29 23:49     ` Luck, Tony
2018-11-30  0:40       ` Kees Cook
2017-09-06 20:27 ` [PATCH 10/14] fs/xfs: " Helge Deller
2017-09-08  7:38   ` Christoph Hellwig
2017-09-18 18:37   ` Darrick J. Wong
2017-09-06 20:27 ` [PATCH 11/14] smp: Use %pF printk format specifier for function pointers Helge Deller
2017-09-06 20:27 ` [PATCH 12/14] mm/memblock: Use %pS printk format for direct addresses Helge Deller
2017-09-06 20:28 ` [PATCH 13/14] netfilter/ipvs: " Helge Deller
2017-10-09  5:52   ` Simon Horman
2017-11-06 13:46     ` Pablo Neira Ayuso
2017-09-06 20:28 ` [PATCH 14/14] sound/core: " Helge Deller
2017-09-07  8:36   ` Takashi Iwai
2017-09-07  0:45 ` [PATCH 00/14] Fix wrong %pF and %pS printk format specifier usages Sergey Senozhatsky
2017-09-07  6:01   ` Helge Deller
2017-09-07  7:56     ` Sergey Senozhatsky
2017-09-07  8:32       ` Sergey Senozhatsky
2017-09-07  9:12         ` Helge Deller
2017-09-07  9:36           ` Sergey Senozhatsky
2017-09-07  9:51             ` Sergey Senozhatsky
2017-09-07 12:38               ` Helge Deller
2017-09-07 16:05                 ` Luck, Tony
2017-09-08  6:18                   ` Sergey Senozhatsky
2017-09-08 17:25                     ` Luck, Tony
2017-09-08 18:28                       ` Helge Deller
2017-09-14  7:40                         ` Sergey Senozhatsky
2017-09-14  8:03                           ` Sergey Senozhatsky
2017-09-14  8:39                             ` Helge Deller
2017-09-14  9:27                               ` Sergey Senozhatsky
2017-09-14  9:47                                 ` Helge Deller
2017-09-14 16:01                                   ` Luck, Tony
2017-09-18  7:03                                     ` Sergey Senozhatsky
2017-09-14  6:53                       ` Sergey Senozhatsky
2017-09-08 20:49                     ` Helge Deller
2017-09-12 11:18                       ` Petr Mladek
2017-09-14  6:44                       ` Sergey Senozhatsky
2017-09-08 22:23                     ` Yu, Fenghua [this message]
2017-09-14  6:35                       ` Sergey Senozhatsky
2017-09-07 16:50                 ` Joe Perches
2017-09-08  6:23 ` Sergey Senozhatsky
2017-09-08 20:39   ` Helge Deller
2017-09-12 12:23 ` Petr Mladek

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