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Commit 786eeeb3 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

staging: csr: remove CsrPmemAlloc 



It's just a wrapper around kmalloc(, GFP_KERNEL) + a call to panic() if
we are out of memory, which is a very foolish thing to do (the panic
that is.)

So replace it with calls to kmalloc() and ignore the out-of-memory
casese for now, odds are it will not be hit, and if it does, hey, we
will end up panicing just the same as with the old code.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 55a27055

drivers/staging/csr/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -69,7 +69,6 @@ csr_wifi-y := bh.o \ 
csr_helper-y :=	csr_time.o			\

		csr_util.o			\

		csr_framework_ext.o		\

		csr_pmem.o			\

		csr_wifi_serialize_primitive_types.o	\

		csr_serialize_primitive_types.o	\

		csr_utf16.o			\

drivers/staging/csr/csr_msgconv.c

+2 −2
Original line number Diff line number Diff line
@@ -233,7 +233,7 @@ void CsrMsgConvInsert(u16 primType, const CsrMsgConvMsgEntry *ce) 
    }

    else

    {

        pc = CsrPmemAlloc(sizeof(*pc));

        pc = kmalloc(sizeof(*pc), GFP_KERNEL);

        pc->primType = primType;

        pc->conv = ce;

        pc->lookupFunc = NULL;
@@ -279,7 +279,7 @@ CsrMsgConvEntry *CsrMsgConvInit(void) 
{

    if (!converter)

    {

        converter = (CsrMsgConvEntry *) CsrPmemAlloc(sizeof(CsrMsgConvEntry));

        converter = kmalloc(sizeof(CsrMsgConvEntry), GFP_KERNEL);



        converter->profile_converters = NULL;

        converter->free_message = free_message;

drivers/staging/csr/csr_pmem.c

deleted100644 → 0
+0 −40
Original line number Diff line number Diff line 
/*****************************************************************************



            (c) Cambridge Silicon Radio Limited 2010

            All rights reserved and confidential information of CSR



            Refer to LICENSE.txt included with this source for details

            on the license terms.



*****************************************************************************/



#include <linux/kernel.h>

#include <linux/version.h>

#include <linux/module.h>





#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)

#include <linux/autoconf.h>

#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 16)

#include <linux/config.h>

#endif



#include <linux/slab.h>



#include "csr_panic.h"

#include "csr_pmem.h"



void *CsrPmemAlloc(size_t size)

{

    void *ret;



    ret = kmalloc(size, GFP_KERNEL);

    if (!ret)

    {

        CsrPanic(CSR_TECH_FW, CSR_PANIC_FW_HEAP_EXHAUSTION,

            "out of memory");

    }



    return ret;

}

EXPORT_SYMBOL_GPL(CsrPmemAlloc);

drivers/staging/csr/csr_pmem.h

+0 −31
Original line number Diff line number Diff line
@@ -17,36 +17,6 @@ 
extern "C" {

#endif



#ifndef CSR_PMEM_DEBUG_ENABLE

/*****************************************************************************



    NAME

        CsrPmemAlloc



    DESCRIPTION

        This function will allocate a contiguous block of memory of at least

        the specified size in bytes and return a pointer to the allocated

        memory. This function is not allowed to return NULL. A size of 0 is a

        valid request, and a unique and valid (not NULL) pointer must be

        returned in this case.



    PARAMETERS

        size - Size of memory requested. Note that a size of 0 is valid.



    RETURNS

        Pointer to allocated memory.



*****************************************************************************/

#ifdef CSR_PMEM_DEBUG

void *CsrPmemAllocDebug(size_t size,

    const char *file, u32 line);

#define CsrPmemAlloc(sz) CsrPmemAllocDebug((sz), __FILE__, __LINE__)

#else

void *CsrPmemAlloc(size_t size);

#endif



#endif



/*****************************************************************************



    NAME
@@ -114,7 +84,6 @@ typedef void (CsrPmemDebugOnFree)(void *ptr, void *userptr, CsrPmemDebugAllocTyp 
void CsrPmemDebugInstallHooks(u8 headSize, u8 endSize, CsrPmemDebugOnAlloc *onAllocCallback, CsrPmemDebugOnFree *onFreeCallback);



void *CsrPmemDebugAlloc(size_t size, CsrPmemDebugAllocType type, const char* file, u32 line);

#define CsrPmemAlloc(size) CsrPmemDebugAlloc(size, CSR_PMEM_DEBUG_TYPE_PMEM_ALLOC, __FILE__, __LINE__)



void CsrPmemDebugFree(void *ptr, CsrPmemDebugAllocType type, const char* file, u32 line);

drivers/staging/csr/csr_sched.h

+2 −2
Original line number Diff line number Diff line
@@ -120,9 +120,9 @@ void CsrSchedBgintSet(CsrSchedBgint bgint); 
 *      be null.

 *

 *  NOTE

 *      If "mv" is not null then it will typically be a chunk of CsrPmemAlloc()ed

 *      If "mv" is not null then it will typically be a chunk of kmalloc()ed

 *      memory, though there is no need for it to be so. Tasks should normally

 *      obey the convention that when a message built with CsrPmemAlloc()ed memory

 *      obey the convention that when a message built with kmalloc()ed memory

 *      is given to CsrSchedMessagePut() then ownership of the memory is ceded to the

 *      scheduler - and eventually to the recipient task. I.e., the receiver of

 *      the message will be expected to kfree() the message storage.