From: Dan Carpenter <dan.carpenter@oracle.com>
To: Arvind Sankar <nivedita@alum.mit.edu>
Cc: kbuild@lists.01.org, lkp@intel.com, kbuild-all@lists.01.org,
linux-efi@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>
Subject: Re: [efi:next 39/40] drivers/firmware/efi/libstub/efi-stub-helper.c:265 efi_convert_cmdline() warn: qualifier 'l' ignored for %s specifier
Date: Wed, 20 May 2020 20:54:49 +0300 [thread overview]
Message-ID: <20200520175449.GR3041@kadam> (raw)
In-Reply-To: <20200520154308.GA3184088@rani.riverdale.lan>
On Wed, May 20, 2020 at 11:43:08AM -0400, Arvind Sankar wrote:
> On Wed, May 20, 2020 at 05:09:03PM +0300, Dan Carpenter wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git next
> > head: e5fbadd1179cdadeaa44d71a9ec068c5bc100524
> > commit: 85f5afd4322d294a7eca0d304744a1646113fbd9 [39/40] efi/libstub: Use snprintf with %ls to convert the command line
> > config: x86_64-defconfig (attached as .config)
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kbuild test robot <lkp@intel.com>
> > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > New smatch warnings:
> > drivers/firmware/efi/libstub/efi-stub-helper.c:265 efi_convert_cmdline() warn: qualifier 'l' ignored for %s specifier
> >
> > # https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git/commit/?id=85f5afd4322d294a7eca0d304744a1646113fbd9
> > git remote add efi https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
> > git remote update efi
> > git checkout 85f5afd4322d294a7eca0d304744a1646113fbd9
> > vim +/l +265 drivers/firmware/efi/libstub/efi-stub-helper.c
> >
> > c625d1c203941f drivers/firmware/efi/efi-stub-helper.c H. Peter Anvin 2013-09-20 258 options_bytes++; /* NUL termination */
> > 9403e462fb5ffa drivers/firmware/efi/efi-stub-helper.c Leif Lindholm 2014-04-04 259
> > 1e45bf7372c48c drivers/firmware/efi/libstub/efi-stub-helper.c Ard Biesheuvel 2020-02-10 260 status = efi_allocate_pages(options_bytes, &cmdline_addr, max_addr);
> > 5fef3870c572a3 drivers/firmware/efi/efi-stub-helper.c Roy Franz 2013-09-22 261 if (status != EFI_SUCCESS)
> > 5fef3870c572a3 drivers/firmware/efi/efi-stub-helper.c Roy Franz 2013-09-22 262 return NULL;
> > 5fef3870c572a3 drivers/firmware/efi/efi-stub-helper.c Roy Franz 2013-09-22 263
> > 85f5afd4322d29 drivers/firmware/efi/libstub/efi-stub-helper.c Arvind Sankar 2020-05-18 264 snprintf((char *)cmdline_addr, options_bytes, "%.*ls",
> > ^
> > The "l" doesn't make sense here?
>
> The previous patches add support for wide strings to the version of
> snprintf used here.
Ah. Thanks. I will update the Smatch check.
regards,
dan carpenter
next prev parent reply other threads:[~2020-05-20 17:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 14:09 [efi:next 39/40] drivers/firmware/efi/libstub/efi-stub-helper.c:265 efi_convert_cmdline() warn: qualifier 'l' ignored for %s specifier Dan Carpenter
2020-05-20 15:43 ` Arvind Sankar
2020-05-20 17:54 ` Dan Carpenter [this message]
2020-05-20 18:00 ` Arvind Sankar
2020-05-20 18:00 ` Ard Biesheuvel
2020-05-20 18:20 ` Dan Carpenter
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