1. 28 6月, 2018 3 次提交
  2. 16 6月, 2018 1 次提交
  3. 15 6月, 2018 5 次提交
  4. 13 6月, 2018 8 次提交
    • J
      ALSA: usb-audio: Remove explicitly listed Mytek devices · d9d5ed1a
      Jussi Laako 提交于
      Remove explicitly listed Mytek devices covered by the more generic DSD
      detection method.
      Signed-off-by: NJussi Laako <jussi@sonarnerd.net>
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      d9d5ed1a
    • J
      ALSA: usb-audio: Generic DSD detection for XMOS-based implementations · f332485f
      Jussi Laako 提交于
      Use more generic method to detect DSD capability of XMOS-based UAC2
      implementations in order to support future devices without having to
      explicitly list every device separately.
      Signed-off-by: NJussi Laako <jussi@sonarnerd.net>
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      f332485f
    • J
      ALSA: usb-audio: Add native DSD support for Mytek DACs · 3a572d94
      Jussi Laako 提交于
      Add new mostly generic code with Mytek VID to support native DSD mode.
      
      This implementation should be easier to maintain when manufacturers
      release new products.
      Signed-off-by: NJussi Laako <jussi@sonarnerd.net>
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      3a572d94
    • T
      ALSA: hda/realtek - Add shutup hint · c7273bd6
      Takashi Iwai 提交于
      The pin shutup callback seems working well on some devices while it
      does harm on some other devices; e.g. Lenovo laptops show often the
      noises at (runtime) PM with the pin shutup enabled.
      
      Currently, the only way to disable the pin shutup is to hard-code
        spec->shutup = alc_no_shutup;
      in the fixup, and this makes the debugging harder for normal users.
      For allowing users to test the similar effect without recompiling the
      kernel, this patch adds a new hint string "shutup".  It's a boolean
      value, and by passing false to this, user can turn off the pin shutup
      call.
      
      For example, to turn off the shutup on Lenovo P50, create a "firmware
      patch" file (e.g. /lib/firmware/alsa/lenovo-p50) containing the
      following lines:
      
        [codec]
        0x10ec0298 0x17aa222e 0
      
        [hint]
        shutup = no
      
      and pass the file via patch option of snd-hda-intel module
      (e.g. patch=alsa/lenovo-p50).
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      c7273bd6
    • K
      treewide: Use array_size() in vmalloc() · 42bc47b3
      Kees Cook 提交于
      The vmalloc() function has no 2-factor argument form, so multiplication
      factors need to be wrapped in array_size(). This patch replaces cases of:
      
              vmalloc(a * b)
      
      with:
              vmalloc(array_size(a, b))
      
      as well as handling cases of:
      
              vmalloc(a * b * c)
      
      with:
      
              vmalloc(array3_size(a, b, c))
      
      This does, however, attempt to ignore constant size factors like:
      
              vmalloc(4 * 1024)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        vmalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        vmalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        vmalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        vmalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
        vmalloc(
      -	sizeof(TYPE) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT_ID)
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT_ID
      +	array_size(COUNT_ID, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT_CONST)
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT_CONST
      +	array_size(COUNT_CONST, sizeof(THING))
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
        vmalloc(
      -	SIZE * COUNT
      +	array_size(COUNT, SIZE)
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        vmalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        vmalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        vmalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        vmalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vmalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        vmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        vmalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        vmalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        vmalloc(C1 * C2 * C3, ...)
      |
        vmalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants.
      @@
      expression E1, E2;
      constant C1, C2;
      @@
      
      (
        vmalloc(C1 * C2, ...)
      |
        vmalloc(
      -	E1 * E2
      +	array_size(E1, E2)
        , ...)
      )
      Signed-off-by: NKees Cook <keescook@chromium.org>
      42bc47b3
    • K
      treewide: devm_kzalloc() -> devm_kcalloc() · a86854d0
      Kees Cook 提交于
      The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
      This patch replaces cases of:
      
              devm_kzalloc(handle, a * b, gfp)
      
      with:
              devm_kcalloc(handle, a * b, gfp)
      
      as well as handling cases of:
      
              devm_kzalloc(handle, a * b * c, gfp)
      
      with:
      
              devm_kzalloc(handle, array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              devm_kcalloc(handle, array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              devm_kzalloc(handle, 4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      Some manual whitespace fixes were needed in this patch, as Coccinelle
      really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      expression HANDLE;
      type TYPE;
      expression THING, E;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression HANDLE;
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      expression HANDLE;
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      expression HANDLE;
      identifier SIZE, COUNT;
      @@
      
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression HANDLE;
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression HANDLE;
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      expression HANDLE;
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        devm_kzalloc(HANDLE,
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression HANDLE;
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
      |
        devm_kzalloc(HANDLE,
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        devm_kzalloc(HANDLE,
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression HANDLE;
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
      |
        devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
      |
        devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
      |
        devm_kzalloc(HANDLE, C1 * C2, ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - devm_kzalloc
      + devm_kcalloc
        (HANDLE,
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: NKees Cook <keescook@chromium.org>
      a86854d0
    • K
      treewide: kzalloc() -> kcalloc() · 6396bb22
      Kees Cook 提交于
      The kzalloc() function has a 2-factor argument form, kcalloc(). This
      patch replaces cases of:
      
              kzalloc(a * b, gfp)
      
      with:
              kcalloc(a * b, gfp)
      
      as well as handling cases of:
      
              kzalloc(a * b * c, gfp)
      
      with:
      
              kzalloc(array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              kzalloc_array(array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              kzalloc(4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kzalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kzalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kzalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kzalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kzalloc
      + kcalloc
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kzalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kzalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kzalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kzalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kzalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kzalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kzalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kzalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kzalloc(C1 * C2 * C3, ...)
      |
        kzalloc(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kzalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kzalloc(sizeof(THING) * C2, ...)
      |
        kzalloc(sizeof(TYPE) * C2, ...)
      |
        kzalloc(C1 * C2 * C3, ...)
      |
        kzalloc(C1 * C2, ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kzalloc
      + kcalloc
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: NKees Cook <keescook@chromium.org>
      6396bb22
    • K
      treewide: kmalloc() -> kmalloc_array() · 6da2ec56
      Kees Cook 提交于
      The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
      patch replaces cases of:
      
              kmalloc(a * b, gfp)
      
      with:
              kmalloc_array(a * b, gfp)
      
      as well as handling cases of:
      
              kmalloc(a * b * c, gfp)
      
      with:
      
              kmalloc(array3_size(a, b, c), gfp)
      
      as it's slightly less ugly than:
      
              kmalloc_array(array_size(a, b), c, gfp)
      
      This does, however, attempt to ignore constant size factors like:
      
              kmalloc(4 * 1024, gfp)
      
      though any constants defined via macros get caught up in the conversion.
      
      Any factors with a sizeof() of "unsigned char", "char", and "u8" were
      dropped, since they're redundant.
      
      The tools/ directory was manually excluded, since it has its own
      implementation of kmalloc().
      
      The Coccinelle script used for this was:
      
      // Fix redundant parens around sizeof().
      @@
      type TYPE;
      expression THING, E;
      @@
      
      (
        kmalloc(
      -	(sizeof(TYPE)) * E
      +	sizeof(TYPE) * E
        , ...)
      |
        kmalloc(
      -	(sizeof(THING)) * E
      +	sizeof(THING) * E
        , ...)
      )
      
      // Drop single-byte sizes and redundant parens.
      @@
      expression COUNT;
      typedef u8;
      typedef __u8;
      @@
      
      (
        kmalloc(
      -	sizeof(u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(__u8) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(char) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(unsigned char) * (COUNT)
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(u8) * COUNT
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(__u8) * COUNT
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(char) * COUNT
      +	COUNT
        , ...)
      |
        kmalloc(
      -	sizeof(unsigned char) * COUNT
      +	COUNT
        , ...)
      )
      
      // 2-factor product with sizeof(type/expression) and identifier or constant.
      @@
      type TYPE;
      expression THING;
      identifier COUNT_ID;
      constant COUNT_CONST;
      @@
      
      (
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * (COUNT_ID)
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * COUNT_ID
      +	COUNT_ID, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * COUNT_CONST
      +	COUNT_CONST, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * (COUNT_ID)
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * COUNT_ID
      +	COUNT_ID, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * (COUNT_CONST)
      +	COUNT_CONST, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * COUNT_CONST
      +	COUNT_CONST, sizeof(THING)
        , ...)
      )
      
      // 2-factor product, only identifiers.
      @@
      identifier SIZE, COUNT;
      @@
      
      - kmalloc
      + kmalloc_array
        (
      -	SIZE * COUNT
      +	COUNT, SIZE
        , ...)
      
      // 3-factor product with 1 sizeof(type) or sizeof(expression), with
      // redundant parens removed.
      @@
      expression THING;
      identifier STRIDE, COUNT;
      type TYPE;
      @@
      
      (
        kmalloc(
      -	sizeof(TYPE) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(TYPE))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * (COUNT) * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * (COUNT) * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * COUNT * (STRIDE)
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      |
        kmalloc(
      -	sizeof(THING) * COUNT * STRIDE
      +	array3_size(COUNT, STRIDE, sizeof(THING))
        , ...)
      )
      
      // 3-factor product with 2 sizeof(variable), with redundant parens removed.
      @@
      expression THING1, THING2;
      identifier COUNT;
      type TYPE1, TYPE2;
      @@
      
      (
        kmalloc(
      -	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
        , ...)
      |
        kmalloc(
      -	sizeof(THING1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kmalloc(
      -	sizeof(THING1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * COUNT
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      |
        kmalloc(
      -	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
      +	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
        , ...)
      )
      
      // 3-factor product, only identifiers, with redundant parens removed.
      @@
      identifier STRIDE, SIZE, COUNT;
      @@
      
      (
        kmalloc(
      -	(COUNT) * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	(COUNT) * (STRIDE) * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	(COUNT) * STRIDE * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	(COUNT) * (STRIDE) * (SIZE)
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      |
        kmalloc(
      -	COUNT * STRIDE * SIZE
      +	array3_size(COUNT, STRIDE, SIZE)
        , ...)
      )
      
      // Any remaining multi-factor products, first at least 3-factor products,
      // when they're not all constants...
      @@
      expression E1, E2, E3;
      constant C1, C2, C3;
      @@
      
      (
        kmalloc(C1 * C2 * C3, ...)
      |
        kmalloc(
      -	(E1) * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kmalloc(
      -	(E1) * (E2) * E3
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kmalloc(
      -	(E1) * (E2) * (E3)
      +	array3_size(E1, E2, E3)
        , ...)
      |
        kmalloc(
      -	E1 * E2 * E3
      +	array3_size(E1, E2, E3)
        , ...)
      )
      
      // And then all remaining 2 factors products when they're not all constants,
      // keeping sizeof() as the second factor argument.
      @@
      expression THING, E1, E2;
      type TYPE;
      constant C1, C2, C3;
      @@
      
      (
        kmalloc(sizeof(THING) * C2, ...)
      |
        kmalloc(sizeof(TYPE) * C2, ...)
      |
        kmalloc(C1 * C2 * C3, ...)
      |
        kmalloc(C1 * C2, ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * (E2)
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(TYPE) * E2
      +	E2, sizeof(TYPE)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * (E2)
      +	E2, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	sizeof(THING) * E2
      +	E2, sizeof(THING)
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	(E1) * E2
      +	E1, E2
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	(E1) * (E2)
      +	E1, E2
        , ...)
      |
      - kmalloc
      + kmalloc_array
        (
      -	E1 * E2
      +	E1, E2
        , ...)
      )
      Signed-off-by: NKees Cook <keescook@chromium.org>
      6da2ec56
  5. 12 6月, 2018 3 次提交
  6. 11 6月, 2018 2 次提交
  7. 07 6月, 2018 2 次提交
    • K
      treewide: Use struct_size() for devm_kmalloc() and friends · 0ed2dd03
      Kees Cook 提交于
      Replaces open-coded struct size calculations with struct_size() for
      devm_*, f2fs_*, and sock_* allocations. Automatically generated (and
      manually adjusted) from the following Coccinelle script:
      
      // Direct reference to struct field.
      @@
      identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
      expression HANDLE;
      expression GFP;
      identifier VAR, ELEMENT;
      expression COUNT;
      @@
      
      - alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
      + alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)
      
      // mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
      @@
      identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
      expression HANDLE;
      expression GFP;
      identifier VAR, ELEMENT;
      expression COUNT;
      @@
      
      - alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
      + alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)
      
      // Same pattern, but can't trivially locate the trailing element name,
      // or variable name.
      @@
      identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
      expression HANDLE;
      expression GFP;
      expression SOMETHING, COUNT, ELEMENT;
      @@
      
      - alloc(HANDLE, sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
      + alloc(HANDLE, CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)
      Signed-off-by: NKees Cook <keescook@chromium.org>
      0ed2dd03
    • K
      treewide: Use struct_size() for kmalloc()-family · acafe7e3
      Kees Cook 提交于
      One of the more common cases of allocation size calculations is finding
      the size of a structure that has a zero-sized array at the end, along
      with memory for some number of elements for that array. For example:
      
      struct foo {
          int stuff;
          void *entry[];
      };
      
      instance = kmalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
      
      Instead of leaving these open-coded and prone to type mistakes, we can
      now use the new struct_size() helper:
      
      instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL);
      
      This patch makes the changes for kmalloc()-family (and kvmalloc()-family)
      uses. It was done via automatic conversion with manual review for the
      "CHECKME" non-standard cases noted below, using the following Coccinelle
      script:
      
      // pkey_cache = kmalloc(sizeof *pkey_cache + tprops->pkey_tbl_len *
      //                      sizeof *pkey_cache->table, GFP_KERNEL);
      @@
      identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
      expression GFP;
      identifier VAR, ELEMENT;
      expression COUNT;
      @@
      
      - alloc(sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
      + alloc(struct_size(VAR, ELEMENT, COUNT), GFP)
      
      // mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
      @@
      identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
      expression GFP;
      identifier VAR, ELEMENT;
      expression COUNT;
      @@
      
      - alloc(sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
      + alloc(struct_size(VAR, ELEMENT, COUNT), GFP)
      
      // Same pattern, but can't trivially locate the trailing element name,
      // or variable name.
      @@
      identifier alloc =~ "kmalloc|kzalloc|kvmalloc|kvzalloc";
      expression GFP;
      expression SOMETHING, COUNT, ELEMENT;
      @@
      
      - alloc(sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
      + alloc(CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)
      Signed-off-by: NKees Cook <keescook@chromium.org>
      acafe7e3
  8. 04 6月, 2018 2 次提交
  9. 02 6月, 2018 3 次提交
    • G
      ASoC: topology: Move skl-tplg-interface.h to uapi · 0c24fdc0
      Guenter Roeck 提交于
      skl-tplg-interface.h describes firmware format details for Skylake
      topology files. It is part of the ABI and should reside in the uapi
      directory.
      
      While moving the file, also replace the license boilerplate with
      the SPDX License Identifier.
      
      No functional change.
      Signed-off-by: NGuenter Roeck <groeck@chromium.org>
      Signed-off-by: NMark Brown <broonie@kernel.org>
      0c24fdc0
    • G
      ASoC: topology: Move v4 manifest header data structures to uapi · 348f4822
      Guenter Roeck 提交于
      Topology manifest v4 is still part of the ABI. Move its data structures
      into the uapi header file.
      
      No functional change.
      Signed-off-by: NGuenter Roeck <groeck@chromium.org>
      Signed-off-by: NMark Brown <broonie@kernel.org>
      348f4822
    • G
      ASoC: topology: Improve backwards compatibility with v4 topology files · ac9391da
      Guenter Roeck 提交于
      Commit dc31e741 ("ASoC: topology: ABI - Add the types for BE
      DAI") introduced sound topology files version 5. Initially, this
      change made the topology code incompatible with v4 topology files.
      Backwards compatibility with v4 configuration files was
      subsequently added with commit 288b8da7 ("ASoC: topology:
      Support topology file of ABI v4").
      
      Unfortunately, backwards compatibility was never fully implemented.
      
      First, the manifest size in (Skylake) v4 configuration files is set
      to 0, which causes manifest_new_ver() to bail out with error messages
      similar to the following.
      
      snd_soc_skl 0000:00:1f.3: ASoC: invalid manifest size
      snd_soc_skl 0000:00:1f.3: tplg component load failed-22
      snd_soc_skl 0000:00:1f.3: Failed to init topology!
      snd_soc_skl 0000:00:1f.3: ASoC: failed to probe component -22
      skl_n88l25_m98357a skl_n88l25_m98357a: ASoC: failed to instantiate card -22
      skl_n88l25_m98357a: probe of skl_n88l25_m98357a failed with error -22
      
      After this problem is fixed, the following error message is seen instead.
      
      snd_soc_skl 0000:00:1f.3: ASoC: old version of manifest
      snd_soc_skl 0000:00:1f.3: Invalid descriptor token 1093938482
      snd_soc_skl 0000:00:1f.3: ASoC: failed to load widget media0_in cpr 0
      snd_soc_skl 0000:00:1f.3: tPlg component load failed-22
      
      This message is seen because backwards compatibility for loading widgets
      was never implemented.
      
      The lack of audio support when running the upstream kernel on recent
      Chromebooks has been reported in various forums, and can be traced back
      to this problem. Attempts to fix the problem, usually by providing v5
      configuration files, were only partially successful.
      
      Let's implement backward compatibility properly to solve the problem
      for good.
      Signed-off-by: NGuenter Roeck <groeck@chromium.org>
      Signed-off-by: NMark Brown <broonie@kernel.org>
      ac9391da
  10. 01 6月, 2018 9 次提交
  11. 31 5月, 2018 2 次提交