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qemu/scripts/coccinelle/exec_rw_const.cocci

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hw: Remove unnecessary cast when calling dma_memory_read() Since its introduction in commit d86a77f8abb, dma_memory_read() always accepted void pointer argument. Remove the unnecessary casts. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- v4: Drop parenthesis when removing cast (Eric Blake)
2020-02-20 12:39:00 +03:00
/*
Usage:
spatch \
--macro-file scripts/cocci-macro-file.h \
--sp-file scripts/coccinelle/exec_rw_const.cocci \
--keep-comments \
--in-place \
--dir .
*/
Let address_space_rw() calls pass a boolean 'is_write' argument Since its introduction in commit ac1970fbe8, address_space_rw() takes a boolean 'is_write' argument. Fix the codebase by using an explicit boolean type. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Inspired-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-19 22:14:26 +03:00
// Convert to boolean
@@
expression E1, E2, E3, E4, E5;
@@
(
- address_space_rw(E1, E2, E3, E4, E5, 0)
+ address_space_rw(E1, E2, E3, E4, E5, false)
|
- address_space_rw(E1, E2, E3, E4, E5, 1)
+ address_space_rw(E1, E2, E3, E4, E5, true)
Let cpu_[physical]_memory() calls pass a boolean 'is_write' argument Use an explicit boolean type. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-19 22:20:42 +03:00
|
- cpu_physical_memory_rw(E1, E2, E3, 0)
+ cpu_physical_memory_rw(E1, E2, E3, false)
|
- cpu_physical_memory_rw(E1, E2, E3, 1)
+ cpu_physical_memory_rw(E1, E2, E3, true)
|
- cpu_physical_memory_map(E1, E2, 0)
+ cpu_physical_memory_map(E1, E2, false)
|
- cpu_physical_memory_map(E1, E2, 1)
+ cpu_physical_memory_map(E1, E2, true)
Let address_space_rw() calls pass a boolean 'is_write' argument Since its introduction in commit ac1970fbe8, address_space_rw() takes a boolean 'is_write' argument. Fix the codebase by using an explicit boolean type. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Inspired-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-19 22:14:26 +03:00
)
hw/net: Avoid casting non-const pointer, use address_space_write() The NetReceive prototype gets a const buffer: typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); We already have the address_space_write() method to write a const buffer to an address space. Use it to avoid: hw/net/i82596.c: In function ‘i82596_receive’: hw/net/i82596.c:644:54: error: passing argument 4 of ‘address_space_rw’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20 13:25:40 +03:00
// Use address_space_write instead of casting to non-const
@@
type T;
const T *V;
expression E1, E2, E3, E4;
@@
(
- address_space_rw(E1, E2, E3, (T *)V, E4, 1)
+ address_space_write(E1, E2, E3, V, E4)
|
- address_space_rw(E1, E2, E3, (void *)V, E4, 1)
+ address_space_write(E1, E2, E3, V, E4)
)
Avoid address_space_rw() with a constant is_write argument The address_space_rw() function allows either reads or writes depending on the is_write argument passed to it; this is useful when the direction of the access is determined programmatically (as for instance when handling the KVM_EXIT_MMIO exit reason). Under the hood it just calls either address_space_write() or address_space_read_full(). We also use it a lot with a constant is_write argument, though, which has two issues: * when reading "address_space_rw(..., 1)" this is less immediately clear to the reader as being a write than "address_space_write(...)" * calling address_space_rw() bypasses the optimization in address_space_read() that fast-paths reads of a fixed length This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const.cocci. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20200218112457.22712-1-peter.maydell@linaro.org> [PMD: Update macvm_set_cr0() reported by Laurent Vivier] Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-18 14:24:57 +03:00
// Avoid uses of address_space_rw() with a constant is_write argument.
@@
expression E1, E2, E3, E4, E5;
symbol true, false;
@@
(
- address_space_rw(E1, E2, E3, E4, E5, false)
+ address_space_read(E1, E2, E3, E4, E5)
|
- address_space_rw(E1, E2, E3, E4, E5, true)
+ address_space_write(E1, E2, E3, E4, E5)
)
Avoid cpu_physical_memory_rw() with a constant is_write argument This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Inspired-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-19 22:34:58 +03:00
// Avoid uses of cpu_physical_memory_rw() with a constant is_write argument.
@@
expression E1, E2, E3;
@@
(
- cpu_physical_memory_rw(E1, E2, E3, false)
+ cpu_physical_memory_read(E1, E2, E3)
|
- cpu_physical_memory_rw(E1, E2, E3, true)
+ cpu_physical_memory_write(E1, E2, E3)
)
hw: Remove unnecessary cast when calling dma_memory_read() Since its introduction in commit d86a77f8abb, dma_memory_read() always accepted void pointer argument. Remove the unnecessary casts. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- v4: Drop parenthesis when removing cast (Eric Blake)
2020-02-20 12:39:00 +03:00
// Remove useless cast
@@
Remove unnecessary cast when using the address_space API This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Two lines in hw/net/dp8393x.c that Coccinelle produced that were over 80 characters were re-wrapped by hand. Suggested-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-19 22:28:22 +03:00
expression E1, E2, E3, E4, E5, E6;
hw: Remove unnecessary cast when calling dma_memory_read() Since its introduction in commit d86a77f8abb, dma_memory_read() always accepted void pointer argument. Remove the unnecessary casts. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- v4: Drop parenthesis when removing cast (Eric Blake)
2020-02-20 12:39:00 +03:00
type T;
@@
(
Remove unnecessary cast when using the address_space API This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Two lines in hw/net/dp8393x.c that Coccinelle produced that were over 80 characters were re-wrapped by hand. Suggested-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-19 22:28:22 +03:00
- address_space_rw(E1, E2, E3, (T *)(E4), E5, E6)
+ address_space_rw(E1, E2, E3, E4, E5, E6)
|
- address_space_read(E1, E2, E3, (T *)(E4), E5)
+ address_space_read(E1, E2, E3, E4, E5)
|
- address_space_write(E1, E2, E3, (T *)(E4), E5)
+ address_space_write(E1, E2, E3, E4, E5)
|
- address_space_write_rom(E1, E2, E3, (T *)(E4), E5)
+ address_space_write_rom(E1, E2, E3, E4, E5)
|
Remove unnecessary cast when using the cpu_[physical]_memory API This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Suggested-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20 12:51:35 +03:00
- cpu_physical_memory_rw(E1, (T *)(E2), E3, E4)
+ cpu_physical_memory_rw(E1, E2, E3, E4)
|
- cpu_physical_memory_read(E1, (T *)(E2), E3)
+ cpu_physical_memory_read(E1, E2, E3)
|
- cpu_physical_memory_write(E1, (T *)(E2), E3)
+ cpu_physical_memory_write(E1, E2, E3)
|
hw: Remove unnecessary cast when calling dma_memory_read() Since its introduction in commit d86a77f8abb, dma_memory_read() always accepted void pointer argument. Remove the unnecessary casts. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- v4: Drop parenthesis when removing cast (Eric Blake)
2020-02-20 12:39:00 +03:00
- dma_memory_read(E1, E2, (T *)(E3), E4)
+ dma_memory_read(E1, E2, E3, E4)
|
- dma_memory_write(E1, E2, (T *)(E3), E4)
+ dma_memory_write(E1, E2, E3, E4)
)
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