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Commit 918799ab authored by Antonino A. Daplas's avatar Antonino A. Daplas Committed by Linus Torvalds
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[PATCH] nvidiafb: Reduce stack usage 



Reduce stack usage of NVCommonSetup()

Signed-off-by: default avatarAntonino Daplas <adaplas@pol.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ade9185a

drivers/video/nvidia/nv_proto.h

+1 −1
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ 
#define __NV_PROTO_H__



/* in nv_setup.c */

void NVCommonSetup(struct fb_info *info);

int NVCommonSetup(struct fb_info *info);

void NVWriteCrtc(struct nvidia_par *par, u8 index, u8 value);

u8 NVReadCrtc(struct nvidia_par *par, u8 index);

void NVWriteGr(struct nvidia_par *par, u8 index, u8 value);

drivers/video/nvidia/nv_setup.c

+23 −11
Original line number Diff line number Diff line
@@ -290,22 +290,29 @@ static void nv10GetConfig(struct nvidia_par *par) 
	par->MaxVClockFreqKHz = par->twoStagePLL ? 400000 : 350000;

}



void NVCommonSetup(struct fb_info *info)

int NVCommonSetup(struct fb_info *info)

{

	struct nvidia_par *par = info->par;

	struct fb_var_screeninfo var;

	struct fb_var_screeninfo *var;

	u16 implementation = par->Chipset & 0x0ff0;

	u8 *edidA = NULL, *edidB = NULL;

	struct fb_monspecs monitorA, monitorB;

	struct fb_monspecs *monitorA, *monitorB;

	struct fb_monspecs *monA = NULL, *monB = NULL;

	int mobile = 0;

	int tvA = 0;

	int tvB = 0;

	int FlatPanel = -1;	/* really means the CRTC is slaved */

	int Television = 0;

	int err = 0;



	memset(&monitorA, 0, sizeof(struct fb_monspecs));

	memset(&monitorB, 0, sizeof(struct fb_monspecs));

	var = kzalloc(sizeof(struct fb_var_screeninfo), GFP_KERNEL);

	monitorA = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);

	monitorB = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);



	if (!var || !monitorA || !monitorB) {

		err = -ENOMEM;

		goto done;

	}



	par->PRAMIN = par->REGS + (0x00710000 / 4);

	par->PCRTC0 = par->REGS + (0x00600000 / 4);
@@ -407,9 +414,9 @@ void NVCommonSetup(struct fb_info *info) 
		par->CRTCnumber = 0;

		if (nvidia_probe_i2c_connector(info, 1, &edidA))

			nvidia_probe_of_connector(info, 1, &edidA);

		if (edidA && !fb_parse_edid(edidA, &var)) {

		if (edidA && !fb_parse_edid(edidA, var)) {

			printk("nvidiafb: EDID found from BUS1\n");

			monA = &monitorA;

			monA = monitorA;

			fb_edid_to_monspecs(edidA, monA);

			FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
@@ -495,17 +502,17 @@ void NVCommonSetup(struct fb_info *info) 


		if (nvidia_probe_i2c_connector(info, 1, &edidA))

			nvidia_probe_of_connector(info, 1, &edidA);

		if (edidA && !fb_parse_edid(edidA, &var)) {

		if (edidA && !fb_parse_edid(edidA, var)) {

			printk("nvidiafb: EDID found from BUS1\n");

			monA = &monitorA;

			monA = monitorA;

			fb_edid_to_monspecs(edidA, monA);

		}



		if (nvidia_probe_i2c_connector(info, 2, &edidB))

			nvidia_probe_of_connector(info, 2, &edidB);

		if (edidB && !fb_parse_edid(edidB, &var)) {

		if (edidB && !fb_parse_edid(edidB, var)) {

			printk("nvidiafb: EDID found from BUS2\n");

			monB = &monitorB;

			monB = monitorB;

			fb_edid_to_monspecs(edidB, monB);

		}
@@ -640,4 +647,9 @@ void NVCommonSetup(struct fb_info *info) 


	kfree(edidA);

	kfree(edidB);

done:

	kfree(var);

	kfree(monitorA);

	kfree(monitorB);

	return err;

}

drivers/video/nvidia/nvidia.c

+2 −1
Original line number Diff line number Diff line
@@ -1617,7 +1617,8 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd, 


	sprintf(nvidiafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);



	NVCommonSetup(info);

	if (NVCommonSetup(info))

		goto err_out_arch;



	par->FbAddress = nvidiafb_fix.smem_start;

	par->FbMapSize = par->RamAmountKBytes * 1024;