lkml.org 
[lkml]   [2018]   [Jun]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.4 14/24] x86/crypto, x86/fpu: Remove X86_FEATURE_EAGER_FPU #ifdef from the crc32c code
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Andy Lutomirski <luto@kernel.org>

    commit 02f39b2379fb81557ae864ec8f85421c0250c954 upstream.

    The crypto code was checking both use_eager_fpu() and
    defined(X86_FEATURE_EAGER_FPU). The latter was nonsensical, so
    remove it. This will avoid breakage when we remove
    X86_FEATURE_EAGER_FPU.

    Signed-off-by: Andy Lutomirski <luto@kernel.org>
    Signed-off-by: Rik van Riel <riel@redhat.com>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Brian Gerst <brgerst@gmail.com>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: Denys Vlasenko <dvlasenk@redhat.com>
    Cc: Fenghua Yu <fenghua.yu@intel.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Josh Poimboeuf <jpoimboe@redhat.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Oleg Nesterov <oleg@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: pbonzini@redhat.com
    Link: http://lkml.kernel.org/r/1475627678-20788-2-git-send-email-riel@redhat.com
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    arch/x86/crypto/crc32c-intel_glue.c | 5 -----
    1 file changed, 5 deletions(-)

    --- a/arch/x86/crypto/crc32c-intel_glue.c
    +++ b/arch/x86/crypto/crc32c-intel_glue.c
    @@ -58,16 +58,11 @@
    asmlinkage unsigned int crc_pcl(const u8 *buffer, int len,
    unsigned int crc_init);
    static int crc32c_pcl_breakeven = CRC32C_PCL_BREAKEVEN_EAGERFPU;
    -#if defined(X86_FEATURE_EAGER_FPU)
    #define set_pcl_breakeven_point() \
    do { \
    if (!use_eager_fpu()) \
    crc32c_pcl_breakeven = CRC32C_PCL_BREAKEVEN_NOEAGERFPU; \
    } while (0)
    -#else
    -#define set_pcl_breakeven_point() \
    - (crc32c_pcl_breakeven = CRC32C_PCL_BREAKEVEN_NOEAGERFPU)
    -#endif
    #endif /* CONFIG_X86_64 */

    static u32 crc32c_intel_le_hw_byte(u32 crc, unsigned char const *data, size_t length)

    \
     
     \ /
      Last update: 2018-06-14 16:20    [W:3.907 / U:1.304 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site